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Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19) –

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)
Stephan Jukic – January 20, 2019


Amazon’s Fire 4K TVs usually are not made by Amazon itself. As an alternative, three totally different manufacturers (thus far) have opted to make use of Amazon branding and Amazon’s wonderful sensible TV platform (together with its Alexa distant management) in their very own 4K UHD TVs and label these fashions as “Amazon Fire” 4K TVs. It’s a workable relationship and what you get if you purchase any one of many fashions at present in existence is a really primary 4K UHD TV when it comes to show efficiency however with a perfectly good sensible TV platform and distant management options which are premium-good. The Toshiba Amazon Fire 4K UHD TV of 2018 (and into early 2019) is the most effective of the three present Amazon Fire 4K UHF TVs, with others from Insignia and Factor being priced virtually the identical however with barely weaker show efficiency specs.

This 4K HDR TV is primary and it gained’t wow anybody with its image vibrancy, however its 4K decision is nearly as good because it will get in some other 4K TV and the Amazon equipment constructed into the Toshiba Fire TV are genuinely a superb deal for this mannequin’s almost all-time low price range worth. Because of this, we thought it was value reviewing and price praising in sure methods.

Additionally Learn:
Our information to the very best 40-45 Inch 4K HDR TVs of 2018 and 2019
Our information to the very best 55 Inch 4K HDR TVs of 2018 and 2019
Our information to one of the best performing 65 inch 4K HDR TVs of 2019


• Robust, uniform black ranges for HDR and SDR content material
• Excellent distinction ratio general
• Fairly brilliant show
• Amazon Fire sensible TV platform is nice
• Amazon Alexa distant is superb
• Splendidly low cost worth


• The HDR specs are barely value mentioning
• Shade efficiency is just modestly respectable
• Movement dealing with is weak
• Few connectivity ports
• General image high quality by no means impresses on something besides primary decision (native 4k)

Backside Line

There’s no whitewashing that the Toshiba Amazon Fire 4K HDR TV is way from an extremely-premium 4K HDR TV in how properly it performs. However that’s not what anybody sane would anticipate from this 4K TV and it’s additionally not what it presents for its extraordinarily low worth by 4K TV requirements. As an alternative, the Toshiba Fire principally provides an ideal, fleshed out starter 4K TV package deal that delivers the necessities of respectable image high quality, some HDR show capability (although not a lot) and couples these with an exceptionally good sensible TV platform & distant management combo. In these regards, the Fire TV is fantastic as a result of whereas it doesn’t supply any Wow Issue or hardcore premium show, it additionally doesn’t promise this stuff or value the a lot bigger quantities that they often promote for in 4K TVs. As a second bed room TV, or as a 4K TV for individuals who need some trendy high quality and nice sensible TV on a really tight price range, we actually advocate the Toshiba Fire 4K TV. You virtually can’t get cheaper than this.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Verify the Toshiba LF621U19 4K HDR Amazon Fire TV (2018 Mannequin) on Amazon

Four.7 – Four Critiques

What We Appreciated

Regardless of a scarcity of extraordinary show specs and options, the Toshiba Fire 4K TV comes with plenty of very respectable qualities and in at the least a couple of particular issues, it merely excels in shocking methods. The next are the issues we thought have been completely greatest about this mannequin.

Amazon Fire Sensible Platform & Equipment
The only largest promoting function of the Amazon Fire TV lineup, together with the Toshiba version being reviewed right here together with all the opposite editions from different manufacturers, is the Amazon Fire TV sensible platform and its equipment. That is apparent since these are all referred to as Amazon Fire TVs no matter their particular producer model names and it’s the case for a great cause: Amazon Fire is superb. The sensible interface provides you a really intuitive consumer interface that’s straightforward to get used to. Moreover, it integrates splendidly with Amazon’s Alexa voice management options, that are extraordinarily responsive, often excellent at understanding human speech, and which come embrace with this tv’s sensible distant management.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

We also needs to notice that the number of obtainable apps contained in the Amazon sensible platform is nice, with hundreds of media supply choices containing tens of hundreds of hours of content material. One draw back to the Amazon sensible platform is that it additionally comes with advertisements and Amazon will incessantly push its personal app or video alternatives at you and unusually, when you think about that that is an Amazon-branded HDR TV, Amazon Prime isn’t out there with HDR content material, however these are minor tradeoffs.

General Image Efficiency
The general image high quality of the Toshiba Fire 4K TV shouldn’t be stellar, however neither is it horrible. For instance, this 4K TV performs virtually identically to Samsung’s NU7100 whereas costing an honest quantity much less. Moreover, the Toshiba Fire is a a lot better performer at key show specs than any of LG’s low-priced 2018 LCD 4K TVs and it’s cheaper than most of them too. Thus, you-re getting loads of respectable high quality on this mannequin even when few of the precise show specs are wonderful. The 4K decision appears as incredible because it ever does for any native extremely HD content material you watch on the Toshiba Fire, and this TV’s upscaling engine is nice at making 1080p and 720p content material look a lot better than it usually would. Moreover, whereas the Toshiba Fire lacks actually strong HDR chops, it does ship some very respectable colour copy partly on account of its 10-bit shade functionality and spices this up even additional by being genuinely robust at black degree uniformity and at distinction.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Black Ranges and Distinction
The only strongest efficiency traits of the Toshiba Amazon Fire 4K TV is how properly it delivers its black ranges and uniformity and the way properly it renders distinction All of those are essential points of extremely HD TV efficiency they usually undoubtedly play a serious half in how nicely excessive dynamic vary of any variety could be proven off. On this tv, they-re merely nice. Black uniformity is surprisingly robust and black ranges are very deep on the Toshiba’s VA panel TV display. Moreover, the distinction ratio that this extremely reasonably priced 4K UHD TV delivers is nothing lower than wonderful, being roughly corresponding to these we’ve seen in a lot pricier 4K HDR TVs like Samsung’s QLEDs and different premium 4K TVs. Sure, it might apply solely to the distinction nevertheless it actually is that good.

Additionally Learn:
Our In-depth assessment of Samsung’s NU8000 4K HDR LCD Sensible TV: excellent show at a mid-vary worth
Our detailed assessment of the remarkably good and reasonably priced Q6FN Samsung QLED 4K HDR TV

Because of these specific specs being so nice, the Toshiba Fire TV makes a few of its weaker show specs work higher than they could usually pull off. The colour vibrancy it outputs is augmented by the robust black ranges and with 10-bit shade thrown in for HDR content material, the result’s simply sufficient high quality to be pleasing even when it’s not breathtaking.

Movement Blur Management
This specific 4K TV doesn’t deal with movement exceptionally properly in a common sense however one factor it does handle to do very properly is ship very robust movement blur management as a consequence of its remarkably robust response time for shifts in pixel shade. In different phrases, whilst content material shifts quickly throughout the display or luminosity modifications often, the Toshiba Fire 4K HDR TV makes its pixels sustain easily with what’s happening for a clean, principally blur-free degree of image efficiency.

Additionally Learn:
Our In-depth assessment of Samsung’s extremely-shiny flagship 2018 Q9FN 4K HDR TV
Our detailed evaluate of Samsung’s wonderful 2018 Q8FN 4K HDR LCD TV

What We Didn’t Like

Now, whereas the Toshiba Fire 4K HDR TV delivers some surprisingly good leads to sure key features of image efficiency, it nonetheless is a particularly finances-geared 4K UHD TV and there’s lots to dislike about its general efficiency too. Sure, since we’re speaking a few really all-time low finances extremely HD TV right here, you possibly can’t anticipate an excessive amount of from it however a number of issues are value mentioning nonetheless.

Show Brightness

On show brightness, Toshiba’s Fire 4K HDR TV is mediocre. It doesn’t underperform many different finances 4K HDR TVs nevertheless it additionally definitely doesn’t exceed any fashions we will consider from the 2018 releases. The SDR brightness on this TV (show luminosity for playback of atypical content material from non-excessive dynamic vary sources like broadcast TV, streaming HD media or DVDs and so forth) is fairly respectable and corresponding to what we’ve seen in 4K TVs just like the Samsung NU7100 or the TCL S-Collection fashions. In different phrases it’s not dangerous. Nevertheless, in relation to enjoying again HDR video sources, the LF621U19 Toshiba Fire TV actually underperforms. Show luminosity of each the sustained and peak type for any space of the display underperforms this TVs SDR content material brightness virtually throughout the board and that’s only a bit peculiar, and disappointing.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Due to these points, the LF621U19 isn’t a very nice tv selection to be used in brightly lit areas and in relation to HDR film playback from sources like Netflix, it just about fails on the job in relation to highlighting HDR content material luminosity. Oddly although, the distinction ratio isn’t a lot affected by the Toshiba Fire TV’s display brightness woes, just because its wonderful black ranges do rather a lot to save lots of the state of affairs right here.

Connectivity Choices

Not a lot to say right here besides that when it comes to connectivity choices, the Toshiba Fire 4K HDR TV covers the fundamentals however solely principally. It’s essential connectivity issues are that it has fairly a number of much less inputs than is the typical even amongst price range 4K UHD TVs, with solely three HDMI ports and one solitary USB port (of the sort). None of those are main issues however they could get problematic if you wish to join various exterior media units to your Toshiba Fire TV, particularly if we’re speaking about USB-related hardware.

Gaming Efficiency

Associated to the connectivity enter shortage we see within the Toshiba Fire 4K HDR TV is the truth that this tv lacks any type of top of the range gaming responsiveness by 2018/2019 requirements. Its enter lag for console gaming in 4K, HDR, 1080p decision and variations of those with totally different colour codecs and body charges is for probably the most half not dangerous, hovering between 30 and 40 milliseconds generally, nevertheless it’s not even near nice both. Informal players in all probability gained’t discover any issues with any of the enter lag metrics of the Toshiba Fire Amazon TV however once we contemplate that even the most cost effective 4K HDR TVs by rivals like TCL and Samsung all ship unbelievable responsiveness at 20 milliseconds or much less in a number of decision, body fee and colour modes, the Toshiba Fire TV begins to look a bit dangerous. Being an affordable finances TV doesn’t excuse mediocre gaming responsiveness. We also needs to notice that the Toshiba Fire 4K TV delivers flat out horrible enter lag if movement interpolation is activated and dangerous enter lag if recreation mode is switched off. It additionally doesn’t help the next codecs:

4k @ 120 Hz
4k with Variable Refresh Fee
1080p with Variable Refresh Fee

Movement Dealing with
The movement blur management of the LF621U19 Toshiba Fire TV is nice, surprisingly so, as we talked about above however in most different properties of movement dealing with, this specific 4K TV doesn’t-t carry out particularly nicely. Most customers of the TV gained’t even actually discover these types of deficiencies as a result of the movement blur dealing with for many peculiar content material from TV or streaming sources is sweet however movement interpolation for slower body price content material within the LF621U19 is barely respectable and this tv has no help for judder-free playback of 24p content material from streaming media, discs or another supply in any respect. Judder doesn’t hassle many TV viewers however some individuals are delicate to it.

Excessive Dynamic Vary Weak spot

To summarize the primary weaknesses of the LF621U19 4K HDR Toshiba Fire TV we will say that its supposed HDR element is rattling weak. This isn’t an enormous drawback, as a result of it may well nonetheless play again all sources of HDR content material and works principally nice for the non-HDR content material that’s nonetheless the overwhelming majority of what we see on our TVs immediately however, if HDR functionality is what you need for a few of your favourite Netflix films or 4K HDR Blu-ray discs, the LF621U19 will disappoint you. Its supposed HDR specs are helped solely by this mannequin’s capability for 10-bit shade rendering. In virtually every part else, the LF621U19 simply doesn’t ship notable dynamic vary outcomes.

Additionally Learn:
Our Information to at this time’s very best streaming media set-prime packing containers for all of the 4K extremely HD content material you possibly can deal with
Our detailed assessment of Sony’s incredible X900 4K HDR TV, the most effective reasonably priced LCD TV of 2018 and early 2019

Worth for Worth & Backside Line

All issues thought-about, we actually do just like the LF621U19 Toshiba Amazon Fire 4K HDR TV. Its HDR may suck and lots of of its specs are solely respectable (with some merely being mediocre by 4K HDR TV requirements) however on the entire, this Toshiba Fire TV mannequin delivers nice worth for the cash it should value you. It’s genuinely an honest TV with some nice 4K decision, good common shade efficiency and nice black ranges and distinction. These greater than compensate for its defects as a starter extremely HD TV, particularly on the splendidly low costs it sells for in its three sizes.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Verify the Toshiba LF621U19 4K HDR Amazon Fire TV (2018 Mannequin) on Amazon

Four.7 – Four Critiques

Key Samsung The Body Specs

• Display sizes: 43 Inch 43LF621U19, 50 inch 50LF621U19, 55 inch 43LF621U19 (TV being reviewed is 50 inches)
• Sensible TV: Amazon Fire TV sensible platform 2018
• HEVC (H.265) Included: Sure
• VP9 Included. Sure
• HD to UHD upscaling: Sure
• HDCP 2.2 Compliance: Sure
• HDR Help: Sure, HDR10,
• Refresh Fee: 60Hz native refresh fee
• Display Lighting: LCD Show with edge-lit LED backlighting
• Decision: three,840 x 2,160 pixels UHD
• Wi-fi Connectivity: Sure, consists of each constructed-in WiFi and Ethernet port
• Remotes: Amazon Alexa sensible distant, voice management, distant app for iOS and Android
• Connectivity: three HDMI (all of them 2.0a and HDCP 2.2) ports, 1 USB ports, 1 Ethernet port, 1 Digital Audio Out,
• Distinction Ratio: 5050+:1 (native, actual distinction)
• Most Peak Brightness: 351 nits (cd/m2)
• 3D Know-how: N/A

Show Efficiency Metrics

Now we’re going to cowl an important and efficiency-related within the Toshiba Fire LF621U19 4K HDR LCD TV. All of them revolve round colour copy, brightness, black ranges, distinction, native dimming and movement dealing with. These specs might range barely from unit to unit in order that they shouldn’t be taken as absolutes of their particular numbers as recorded right here. Nevertheless, they need to keep a usually excessive degree of similarity in all models, making them ok to be dependable indicators of high quality.

The specs and metrics we’re going to cowl listed here are principally what actually decides if a 4K TV is value shopping for or not. They’re its most necessary indicators of actual efficiency they usually disregard all of the advertising and labeling fluff that producers wish to slather their TVs in for the sake of creating them appear extra distinctive than they actually may be. Right here we ignore pretend shade brilliance labels and disingenuous terminology like a TVs “Motion Rate” (which primarily simply describes a totally invented movement refresh price that has nothing to do with what the TV panel can truly do) and different such jargon.

One factor that’s value noting for consumers of this or another 4K UHD LCD TV is that totally different sizes in TV shows can change a few of these metrics barely (for instance, bigger edge-lit LCD 4K TVs are likely to have weaker native dimming and peak brightness). As an edge-lit LCD TV, the Toshiba Fire can have some slight variations to how its backlight impacts native dimming, distinction and black uniformity relying on the dimensions of display being thought-about. These types of variations don’t apply a lot to OLED UHD TVs or to full-array LCD TV fashions.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Black Degree, Distinction and Native Dimming:

These essential show specs in any 4K TV are all intently associated to one another so far as show efficiency goes. Thus they need to be coated collectively.

The Toshiba Fire TV delivers a few of its strongest qualities on this broad class of essential show specs. They’re what make most of the TV’s different a lot weaker specs look a lot better consequently. Particularly, the black ranges and black uniformity of the LF621U19 are wonderful or a minimum of excellent. We’ve seen higher in different virtually equally reasonably priced extremely HD TVs however for its extremely low worth, the Toshiba Fire is basically nice at creating deep, robust black ranges which are remarkably uniform all through. In different phrases, the quantity of sunshine bleed resulting in show clouding throughout very darkish scenes is sort of low and the precise black degree sits very excessive with a luminosity throughout deep blacks that’s solely barely above zero.023 nits. Moreover, the TV comes with wonderful distinction that sits comfortably above or round 5030:1. We’ve seen higher from various different low-value 4K HDR TVs such because the TCL 6-Collection and Samsung’s NU7100 however once more, over 5000:1 is nice by any measure and notably so in such an reasonably priced 4K UHD TV because the Toshiba Fire LF621U19. What’s notable right here is that (as we’ll cowl only a bit additional down) the LF621U19 isn’t a very vibrant 4K HDR TV however nonetheless manages to get saved by its nice distinction.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

The place the Toshiba Fire does fall utterly flat is on native dimming, just because it doesn’t have any, however then once more that is to be anticipated as a result of this specific function is totally absent in most price range televisions (with TCL’s excellent 6-Collection fashions being one of many only a few notable exceptions). That stated, regardless of the shortage of native dimming, this Fire TV nonetheless manages a robustly good black uniformity and solely modest ranges of halo impact round brightly lit objects towards darkish backgrounds in onscreen content material. So we will’t complain an excessive amount of about its lack of native dimming. It’s merely value mentioning that there isn’t any.

ALSO READ: Our in-depth evaluate of the unbelievable TCL 6-Collection R617 4K HFR LCD Sensible TV


Peak brightness is the utmost attainable spot HDR or SDR luminosity of an entire 4K TV show or in a different way sized sections of its display as measured in models of brightness referred to as nits (or cd/m2, which is identical factor). Sustained brightness is the very best potential sustained HDR or SDR brightness that the TV display can handle throughout its whole display or elements of it for a protracted time period (a couple of minutes or extra). In different phrases, Peak brightness consists of how luminous sudden vibrant spots can grow to be and sustained brightness measures extended luminosity in content material on the show.

The Toshiba Fire is one unsurprisingly weak performer relating to peak brightness and to sustained show luminosity underneath virtually all circumstances. This specific 4K TV delivers decently robust brightness throughout playback of SDR video sources (all content material that doesn’t have HDR built-in into it) however with regards to HDR video playback if the Toshiba Fire is about to HDR mode, it’s mediocre at greatest. This can be a bit odd since we’d anticipate the Fire LF621U19 to if something do even higher at display brightness with regards to HDR video playback however no, it’s the SDR that’s respectable and the HDR that’s truly worse to the purpose of being ineffective. That stated, even its sustained and peak brightness specs throughout playback of SDR aren’t anyplace near exceptionally good, although they’re at the very least okay. The Toshiba Fire performs decently sufficient should you watch it in a dimly lit room or with out the display being uncovered to direct exterior mild. General, this Amazon Fire 4K TV mannequin performs about in addition to the same Samsung NU7100 although the Fire TV is the cheaper mannequin of the 2.

However, what this Fire TV from Toshiba does do remarkably nicely is supply extraordinarily uniform brightness ranges for all display testing metrics. That’s fairly a uncommon factor in any 4K TV. What we imply by this might be demonstrated only a bit additional down.

We’d additionally like to say that shade quantity high quality within the Toshiba Fire LF621U19 4K TV is fairly weak throughout playback of dimly lit scenes or overly brilliant scenes in content material. So regardless of even its low peak brightness, this tv doesn’t do an ideal job of preserving content material shade vibrancy on the extremes it could actually attain of luminosity and shadow.

The show brightness numbers under as measured in nits for various areas of show area, underneath each HDR and SDR settings and underneath each peak and sustained circumstances reveal the Toshiba Fire’s general capability for display luminosity. As you’ll observe by wanting on the figures under, the Toshiba Fire LF621U19 is surprisingly and remarkably good at staying very, very uniform within the ranges of brightness it retains throughout all testing parameters. It’s most show brightness in both HDR or SDR will not be unimaginable however it’s a minimum of uncommonly even always:

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Toshiba Fire LF621U19 SDR Brightness

  • General SDR peak brightness for regular content material: 355 nits
  • Peak 2% show space show SDR brightness: 356 nits
  • Peak 10% show space SDR brightness: 358 nits
  • Peak 100% show space SDR brightness: 355 nits
  • Sustained 10% SDR brightness: 352 nits
  • Sustained 100% SDR brightness: 348 nits

Samsung FRAME HDR Brightness

  • General HDR peak brightness for regular content material: 362 nits
  • Peak 2% show space show HDR brightness: 361 nits
  • Peak 10% show space HDR brightness: 349 nits
  • Peak 100% show space HDR brightness: 349 nits
  • Sustained 10% HDR brightness: 350 nits
  • Sustained 100% HDR brightness: 347 nits

Shade Supply:

To start with, Toshiba Fire presents at the least some modest HDR colour supply: full help for 10-bit shade with little or no banding of colours throughout copy of content material with 1.07 billion RGB shade values. That is good and it makes the colour grading throughout playback of HDR content material look very good on the LF621U19’s display. Then again, the Toshiba LF621U19 has no vast colour gamut (WCG) colour area protection, which is much more essential for true supply of excessive dynamic vary colour in the proper of content material. The Amazon Fire TV solely covers a modest 80.02% of the DCI-P3 colour area, and WCG shade requires at the least 91% protection. The distinction is giant.

That stated, for an absolute price range starter TV, the Toshiba Fire doesn’t carry out badly in any respect. It will provide you with some minimal HDR vibrancy in HDR video sources and for atypical content material, HDR specs for WCG and 10-bit shade are irrelevant anyhow, so for the overwhelming majority of flicks, TV exhibits and non-4K streaming content material together with most non-HDR video content material, the overall shade capabilities of this Fire TV are high quality. Its greater weak spot is its lack of excessive show brightness, not a lot its colour efficiency.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Colour quantity upkeep can also be nevertheless very poor in Toshiba Fire (as we talked about above in our brightness part) and it’s undoubtedly not a robust tv with regards to enjoying again colour with good quantity and vibrancy throughout shadowy scenes in content material or throughout very vibrant content material scenes (regardless of how low its peak brightness is anyhow).

White stability delta E and shade delta E in Toshiba Fire sit at horrible out-of-the-field ranges of 10.5 and 5.75 respectively and solely this TV’s Gamma is respectable proper when the TV is turned on for the primary time. Gamma out-of-the-field sits ate 2.three. In different phrases, all three and notably the primary two want speedy calibration. After some average image settings calibration however, however, these similar ranges turn out to be a lot better even when they continue to be solely respectable, sitting at three.6, Four.three and a couple of.7 respectively for the mannequin we reviewed. These particulars can nevertheless be improved away a bit extra with the appropriate quantities of twiddling with the Toshiba LF621U19’s image settings. The underside line nevertheless is that this TV merely won’t ship premium colour high quality regardless of how a lot it’s performed with.

Movement Dealing with & Upscaling:

Toshiba Fire gives principally mediocre movement dealing with efficiency throughout the board apart from its movement blur management is exceptionally good because of the TVs response time being set at 6.2 milliseconds. Toshiba Fire additionally has some respectable sufficient movement interpolation capability in its display however this will produce a slight cleaning soap opera impact when used for films that play at totally different body charges. It’s additionally restricted to 60Hz since that’s this tv’s native refresh fee. It’s additionally value noting that for the Toshiba Fire 4K TV, movement interpolation might be made to work at its most effective by setting Movement Processing to plain or clean, which can make the algorithm extra conservative, and though movement isn’t as clean, there are additionally much less artifacts than what you’d get when Movement Processing is about to its max on this mannequin. The 43 and 50 inch editions of the Toshiba Fire LF621U19 nevertheless don’t even include this mannequin’s pretty weak movement dealing with function.

The Toshiba Fire TV additionally lacks help for judder-free 24p content material playback from any supply. It is going to in fact play such content material (often 4K or HD Blu-rays and lots of DVDs in addition to numerous streaming media films) however some judder is created and this may hassle some people who find themselves delicate to this type of factor.

As for Toshiba Fire’s upscaling, it really works properly at sharpening virtually any fairly nicely formatted supply of content material. It nevertheless operates at its greatest when being utilized 1080p HD video and 720p programming of any type. The native 4K decision of the Toshiba Fire Amazon TV is nice, and absolutely fleshed out with out pixel-filling trickery like white sub-pixels.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Enter Efficiency for Gaming and PC:

A lot of the finances 2018 4K HDR TV lineup, from least expensive to priciest fashions, from most main TV producers just about gives wonderful responsiveness for console gaming and PC use at totally different decision, colour and HDR settings in addition to at totally different refresh charges. For this very purpose, it’s shocking that the Toshiba Fire 4K TV doesn’t. It’s responsiveness for console gaming is at greatest respectable and in some ways even mediocre, and the TV is lower than stellar as a 4K PC monitor as nicely. Most of all although it’s the enter lag it manages for console gaming that’s weak. Even in Recreation Mode it falls nicely in need of the typical for many price range or premium 4K TVs, which amongst all the 2018 fashions hovered round 20 milliseconds. Within the Toshiba LF621U19, the typical enter lag is nearer to 40 ms, because the numbers additional under bear out.
The next are the precise specs for this Fire TV’s gaming efficiency in several console setups:

  • 4k @ 60Hz: 36.Four ms
  • 1080p @ 60Hz: 34.1 ms
  • 1080p @ 120Hz: N/A
  • 4k @ 60Hz + HDR: 32.1 ms
  • 1080p @ 60Hz + HDR: 54.1 ms
  • 4k @ 60Hz Outdoors Recreation Mode : 72 ms
  • 4k @ 60Hz @ Four:Four:Four: 35.Four ms
  • 4K @ 60Hz @ Four:Four:Four + eight bit HDR: 37.Four ms
  • 4K with interpolation activated: 137.Four ms

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

The Toshiba Fire can also be reasonably respectable to be used as a PC monitor if you wish to do HD or 4K gaming on it, however it’s not extraordinarily versatile. It’s suitable with a number of decision and colour codecs and gives clean body price dealing with between PC GPUs and what the display delivers natively (60Hz). However different key PC connectivity choices are type of lacking with this 4K TV, although the necessary ones are current. This TV gives up the next particular specs:
• 1080p @ 60Hz @ Four:Four:Four
• 1440p @ 60Hz
• 4k @ 60Hz
• 4k @ 60Hz @ Four:Four:Four
What it doesn’t help is the next:
• 1080p @ 120Hz
• 4k @ 30Hz @ Four:Four:Four
• 4k @ 120Hz


The Toshiba Fire comes with all of its connectivity ports constructed into the again of the TV to at least one aspect. There isn’t a further particular cable administration on this mannequin like you’ll find in sure premium extremely HD TVs. You merely plug your cables proper into the ports on the mannequin. These include the necessities however with sure key variations from some various extremely HD TV fashions –primarily that the Toshiba Fire solely has three HDMI ports and only one single USB port. However, this additionally signifies that the Toshiba Fire version does comes outfitted with three HDMI, USB connectivity and different essential connectivity slots that a trendy 4K TV wants. Toshiba additionally gave the Toshiba Fire full HDMI HDR and HDCP supported bandwidth in all three HDMI ports. This can be a good contact contemplating that equally priced rival TVs from Sony solely supply this by means of two of their HDMI ports.

On a slight destructive aspect, the Toshiba Fire TV solely helps HDR10 passthrough. There isn’t any help for Dolby Imaginative and prescient and even for HLG HDR content material. It should play again films mastered in each however with out these HDR specs being rendered, although it hardly issues anyhow since this 4K TV solely presents restricted HDR visuals it doesn’t matter what it performs.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

The next are Toshiba Fire’s ports and their specs:

  • HDMI : three (all with HDCP 2.2 and full HDMI 2.0a capability)
  • USB : 1 (USB
  • Digital Optical Audio Out : 1
  • Analog Audio Out three.5 mm : 1
  • Tuner (Cable/Ant) : 1
  • Ethernet : 1
  • IR In : 1
  • HDR10 help: Sure
  • Hybrid Log Gamma HDR help: No
  • Dolby Imaginative and prescient HDR: No

The Toshiba Fire 4K TV fashions additionally supply audio connectivity within the following varieties.

  • 1 Passthrough ARC Dolby Digital
  • 1 Passthrough Optical Dolby Digital


Toshiba has launched Toshiba Fire in a number of totally different sizes, for all types of budgets. Thus, a 43 inch mannequin is being bought in addition to editions in 55 inches and 65 inch ranges. These a number of Fire tv editions promote for the next costs, discovered within the hyperlinks under on the time of this writing. Keep in mind that these are topic to typically frequent downward change and it’s a good suggestion to click on the next Amazon hyperlinks for actual-time pricing and all obtainable reductions on this mannequin.

Toshiba Amazon Fire 4K HDR LCD TV Review (43LF621U19, 50LF621U19, 55LF621U19)

Examine the Toshiba LF621U19 4K HDR Amazon Fire TV (2018 Mannequin) on Amazon

Four.7 – Four Evaluations
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