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Overall, the JS8500 is a terrific performer, though it suffers from similar kinds of drawbacks inherent to very flat, edge-lit LED TVs. The screen's backlight uniformity leaves a bit to be desired due to all of the light eminating from the vertical edges of the screen, and likewise this makes for somewhat limited dimming, as well as a narrow viewing cone.

Make no mistake, however, the JS8500 is still one of the better edge-lit 4K options you can buy, and flourishes in brighter rooms, delivering a ton of color and brightness.
Samsung's been all about curved TVs lately, but the company still knows how to craft a handsome flat-panel option. The Samsung UN65JS8500 (MSRP $3,999, online for $2,999) is not only Samsung's best performing flat TV this year, it's one of the sleekest, sexiest displays the company has ever produced—replete with all the "SUHD" bells and whistles like quantum dot, HDR, and 4K resolution.

While it's not quite on the level of the company's flagship JS9500 SUHD, the JS8500 is a lot more affordable, and for what you're paying it compares favorably. The biggest difference is that the JS8500 uses an edge-LED backlight, and lacks the contrast prowess of its pricier big brother. But you still get enhanced (nano-crystal) color, the Tizen OS smart platform, the mini version of the OneConnect, and a sleek silver finish. Overall, it's a very shiny package.

But while the JS8500 is a great performer, at $3,000 it's quite a bit pricier than competing models. However, much of what you're paying for is the JS8500's HDR compatibility, something 99% of today's content won't even show off. The "shirring" finish and sleek metal edges also push up the price. But if you're on the hunt for a UHD TV that's exceedingly future-proofed and super stylish, the JS8500 has very little competition.

Calibrating the UN65JS8500 was a very familiar process, and because the TV is quite accurate out of the box in Movie mode, also quite quick. We calibrate each TV for two reasons: to ascertain the efficacy of the calibration controls, and to get the best idea of how its performance compares to dark-room/home theater calibration standards.

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To that end, I used the TV's backlight control, gamma slider, and 2/10 point white balance controls to set a reference brightness of about 40 fL (or about 140 cd/m2 ) and a dark room 2.4 gamma curve. Fortunately, the TV's natural RGB balance and grayscale production was so accurate that calibrating to these standards was a quick and relatively painless process.

Below, you'll find Samsung's defaults in the Movie mode preset (left) alongside my final calibration settings (right).

Samsung-JS8500-Calibration

The JS8500 series is available in three screen sizes

The flat JS8500 SUHD series is available in three screen sizes: a 48-inch version (Samsung UN65JS8500, MSRP: $2,499), a 55-inch version (Samsung UN55JS8500, MSRP: $2,999), and a 65-inch version (Samsung UN65JS8500, MSRP: $3,999). You can find each of them discounted online, ranging from $1,500 to $3,000.

Other than screen size, the JS8500 TVs are identical. Each boasts the same flat screen, silver trim, and razor-straight stand; OneConnect mini external connectivity box; and smart features, a la Samsung's Tizen OS-based smart platform. We expect core performance aspects to be very similar between sizes, as each TV delivers 4K resolution, edge-LED backlighting, and nano-crystal (quantum dot) color.

We received our 65-inch JS8500 on-loan from Samsung. It was given roughly 50 hours to warm up and break in prior to review and evaluation.
For an edge-lit LED TV, the JS8500 actually boasts very good contrast. Using the standard ANSI checkerboard pattern (6x6), I measured a black level of 0.05 cd/m2 and a reference brightness of 168.50 cd/m2 , giving the JS8500 a static contrast ratio of 3,370:1. This is quite good, though the TV is neither as dark nor as bright as Samsung's flagship JS9500—but that's to be expected, considering the backlight and dimming technology present.

Samsung-JS8500-Contrast

Razor-straight and thin, the JS8500 puts fashion first

While you lose out on the flagship model's full-array backlight with local dimming, the JS8500's edge-lit design makes for a thin edge-to-edge panel that's perfect for mounting on a wall. The included stand is equally slender, describing a razor-straight footprint that takes up a minimal amount of surface space. The flat JS8500 is probably the sleekest, sexiest SUHD option in the lineup—and it knows it.

Samsung-JS8500-Shirring
Credit: Reviewed.com / Lee Neikirk

Featuring sleek metal edges and a "shirring" finish on the back, the flat, thin JS8500 is easily Samsung's most stylish SUHD TV this year.

The rear casing is equally compelling. Like the curved JS9000, the JS8500 boasts a "shirring" rear finish. The clean, rippled gray finish is a welcome departure from the usual charcoal-colored plastic, making for a TV that looks about as good from the back as it does from the front.

The JS8500 also includes the OneConnect Mini, a smaller version of Samsung's OneConnect box. If you're unaware, most of Samsung's upper-crust 2015 TVs come with either a OneConnect or OneConnect Mini, an external box that houses some or all of the TV's audio-video ports (the connections that are usually found on the back of the TV). This can make for easier placement in home theaters, and the externalized ports are much easier to access if you choose to wall-mount the TV.

As for the Mini, it takes a hybrid approach, externalizing high-priority connections like HDMI and USB, while keeping options like component/composite and coaxial on the TV itself. On the Mini, you'll find four HDMI inputs, two USB inputs, and optical (digital) audio out. Component, composite, coaxial, and analog audio out live on the TV proper.

Finally, like the flagship JS9500, the JS8500 includes Samsung's Smart Touch control, a curved black remote that includes an on-screen cursor, voice recognition, and backlit keys. It's a great accessory, whether you're channel surfing, playing with picture controls, or browsing the smart hub.

One of the better options out there, but not the best

Hot take: If there's one thing smart TVs need to do win people over, it's step out of the screen's spotlight. By that, I mean they need to be easy to use, uncluttered, and—literally—not covering the screen all the time. Samsung's Tizen OS-based smart platform does a decent job of this, though it still doesn't quite compete with dedicated third-party set-top options like Apple TV, Roku, and Chromecast when it comes to ease of use and content access.

Samsung-JS8500-Menu-Interface
Credit: Reviewed.com / Lee Neikirk

Samsung's menu and Tizen-OS based platform offers up a blitz of information, while attempting as best it can to keep the screen front and center. This deserves kudos.

When you push the "Smart Hub" button on the remote, a quick-selection bar pops up at the bottom of the screen. This is a great jumping off point, especially since the bar can be customized to reflect your favorite apps. If you use Netflix or HBO Go all the time, they'll end up living in this bar. If you want to browse the full selection of apps/games or use the web browser, you'll have to go full screen, but there's a PiP (picture-in-picture) option so you can keep an eye on your programming, at least.

The JS8500's real claim to fame is in the streaming of 4K content from Netflix, Amazon, and YouTube.

But as a 4K TV, the JS8500's real claim to smart TV fame is that it allows you to stream 4K content from apps like Netflix, Amazon Instant Video, and YouTube. There's still not much 4K content out there, but it's better than nothing. Currently, third-party set-top options are still playing catch up in terms of 4K streaming—although Amazon's 4K-compatible Fire TV will be available soon—and a 4K smart TV like this one remains one of the easiest, simplest ways to stream 4K.

Samsung doesn't break the mold with its standard software interface, but it's just as user-friendly as ever. The traditional blue menu offers up ample picture, audio, or network settings. If you're a do-it-yourself calibrator, or like to tinker with really advanced picture settings, you'll be glad to know that Samsung's standard 2/10 point white balance controls, gamma slider, and custom color space adjustments are still available.
Viewing angle is one area where the JS8500 underperforms a bit, especially compared with the huge viewing angles you'll find on plasma, OLED, and LCD sets using IPS style LCD panels. I measured a total viewing angle of 34°, or ±17° from the center to either side of the screen. This is a little lower than the average edge-lit LED (compared to both the JS9000 and Sony X850C UHD TVs).

Samsung-JS8500-Viewing

A terrific 4K performer, with just a couple of drawbacks

The 65-inch JS8500 has a lot going for it. Like most TV manufacturers, Samsung employs a "trickle down" effect from its flagship TV to the more affordable models. In this case, the JS8500 is inheriting a lot of the best aspects from the flagship JS9500, including nano-crystal (quantum dot) color and a great backlight dimming algorithm, which enhances contrast and helps content pop off the screen.

Samsung-JS8500-YouTube
Credit: Reviewed.com / Lee Neikirk

Streaming 4K content from YouTube is a great way to take advantage of the massive 4K resolution.

I watched a lot of content, and at first was nothing but impressed. For example, our Blu-ray of The Dark Knight looked excellent, especially when the caped crusader was front and center, meting out justice amongst satisfying black levels and bright highlights. I also watched a few scenes from the Moving Art movies on Netflix: native 4K footage of landscape scenery like flowers, mountains, and oceans. Even in Movie mode—the subtlest picture mode—colors were rich and vivid without any banding or detail loss.

Much of the JS8500's success owes to its HDR compatibility. High Dynamic Range is a content format that's still coming to market, but the bits and demos we've seen here and there are very impressive. HDR will eventually deliver content with more color and much brighter highlights than current standards require, and the JS8500's HDR-ready hardware gives it a big advantage.

Samsung-JS8500-Contrast
Credit: Reviewed.com / Lee Neikirk

Despite being edge-lit, the JS8500 delivers solid black levels and great pinpoint highlights thanks to its HDR-ready brightness and well-utilized local dimming.

But there are some disadvantages, too. Because the JS8500 uses a super-bright, HDR-ready edge-LED backlight, all of its light emanates from the left and right sides of the screen. This is the case with many modern LED televisions, and it often causes unsightly "flashlighting," or edge bleed, during dark, shadowy scenes. However, the JS8500's dimming is fortunately good enough that it isn't an issue here. But what attentive viewers may notice is a small brightening along the edges of the screen, instead, at any given instance.

This isn't a huge issue, but it can be occasionally distracting if you're watching something with letterboxes (black bars) at the top and bottom of the screen. It's more of an issue with 4:3 (standard definition) content, where the left and right sides of the screen are black—but you're probably not buying an HDR-capable UHD TV to watch original aspect ratio reruns of Seinfeld. The edge-lit method also creates a narrower viewing cone compared to an LED TV with a full-array backlight, where there are lights behind the entire screen.

Samsung-JS8500-Netflix
Credit: Reviewed.com / Lee Neikirk

Unfortunately, the JS8500's high brightness and sleek form factor come at some cost to performance. Notice the vertical brightening along the left side of the screen.

Outside of the issues that stem from the edge-LED design, however, the JS8500 is more or less flawless. Its 120 Hz refresh rate is complemented by Samsung's usual suite of blur/judder reduction modes (called Auto Motion Plus) that yield solid motion performance. The TV's unassisted performance is fine, but picky viewers will still want to jump between different motion modes/custom settings every now and then to complement content. You'll want different settings for filmic 24p content than Monday Night Football, for example.

Finally, what about upscaling? This term is used to describe how well the TV converts lower-resolution content (720p, 1080i, or 1080p) to fill its 4K screen—an essential skill for pretty much every 4K TV, since most content is still capped at 1080p or lower. Fortunately, the JS8500 does as good a job as the rest of Samsung's SUHD lineup, with only notably lower-rez content (like the 720p/1080i you get from most cable broadcasts) showing wear and tear. Naturally, you're better off sticking with 1080p, in stream or Blu-ray form, but any of the "p" (progressive scan) timing modes are generally agreeable until true 4K content becomes more common.

Samsung-JS8500-Cable
Credit: Reviewed.com / Lee Neikirk

As a 4K TV, the JS8500 does a great job upscaling 1080p content, but lower resolution options (like most cable broadcasts) may not always look their best.

Many TVs adhere to a standard 2.2 gamma out of the box, but Samsung has confided in the past that they aim for a slightly more dim-room friendly 2.3 curve, which the JS8500 follows quite naturally, though it tested with a 2.28 sum. Moving the gamma slider from the "0" default to "-1" pushed gamma down from 2.28 to 2.4 after calibration, making for good luminance allocation for a very dim or dark viewing environment.

Samsung-JS8500-Gamma

TVs produce grayscale elements (neutral tones, like gray/white) by combining red, green, and blue colored sub-pixels—this is called "additive color." The aim for current HDTVs is to produce grayscale tones that adhere to a specific spot on the CIE color space chart, specifically D65. The exact location is that x = 0.313, y = 0.329, with a correlated color temperature of 6500K (6504K, most specifically).

When grayscale elements exhibit visible error, this is measured in a collective/max sum called deltaE (or dE), where a dE of 3 or less is considered ideal (no visible error, though some technical error is acceptable). Out of the box, the JS8500 tested with a grayscale dE of 3.15—just barely over the ideal limit, which is a great result. After calibration, the adjustments I made reduced the error further, down to 2.16, within ideal limits.

Samsung-JS8500-Grayscale

The before/after RGB emphasis (x/y considered, Y not considered) reveal that most of the reduced error is from a reduction of the backlight, as the general RGB emphasis is almost identical. This is often the case with edge-lit LED TVs, where the edge diodes are driven a little too high in default settings for ideal dark room performance.

Samsung-JS8500-RGB-Balance

This top-tier Samsung makes good on its promise, but asks a high price

As a member of Samsung's SUHD line, we expected top-notch performance from the JS8500, and we weren't disappointed. Other than a couple of small drawbacks, this TV delivers on its promises with lush, vivid color, satisfying black levels, smooth motion, and crisp 4K resolution. The edge-lit design makes for shadow tones and uniformity that may not sit right if you like to watch in a pitch-black room, but everyone else is in good hands.

But if there's one thing to really address about the JS8500, it's the price. While it fosters excellent performance, content won't take advantage of the TV's true ace-in-the-hole—HDR compatibility—for some time. Judged by the limits of today's content, the JS8500 performs very similarly to options like the Sony X850C and Vizio M Series, both of which are considerably cheaper right now.

On the other hand, they've got nothing on the JS8500 in terms of its slim, sexy design. And when more HDR content does become available, the JS8500 will hit the ground running. It treats today's content to a small touch-up—thanks to its HDR-ready brightness and color—and though it won't fully shine for some time, it still looks excellent by today's standards. If you're hunting for a sleek, forward-facing option, keep the JS8500 on your short list.
A color gamut is a visual illustration of a display's hue and saturation for its primary colors (red/green/blue), secondary colors (cyan/magenta/yellow) and gray/white point. While the standard color gamut model does not display step luminance for the produced colors (which would require a three-dimensional space), the luminance allocation can be roughly figured the gamma and RGB balance charts.

Compared to the standard rec.709 color gamut (which is used by everything except Wide Color Gamut/Adobe RGB content), the JS8500 is very accurate, you could even call it spot on. Each of the primary and secondary colors are within visible error ranges, so much that almost no adjustments were made during the calibration process.

Samsung-JS8500-ColorGamut

Meet the tester

Lee Neikirk

Lee Neikirk

Editor

@Koanshark

Lee has been Reviewed's point person for most television and home theater products since 2012. Lee received Level II certification in TV calibration from the Imaging Science Foundation in 2013. As Editor of the Home Theater vertical, Lee oversees reviews of TVs, monitors, soundbars, and Bluetooth speakers. He also reviews headphones, and has a background in music performance.

See all of Lee Neikirk's reviews

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We use standardized and scientific testing methods to scrutinize every product and provide you with objectively accurate results. If you’ve found different results in your own research, email us and we’ll compare notes. If it looks substantial, we’ll gladly re-test a product to try and reproduce these results. After all, peer reviews are a critical part of any scientific process.

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