Samsung Galaxy Tab S Review (10.5 & 8.4-inch)
by Anand Lal Shimpi on June 24, 2014 9:00 AM EST- Posted in
- Tablets
- Samsung
- Mobile
- Galaxy Tab S
Display
In addition to the dramatically reduced chassis thickness, the move to a Super AMOLED display is the other flagship feature of the Galaxy Tab S lineup. Both devices feature a 2560 x 1600 Super AMOLED panel. The 10.5-inch model features a derivative of the S-Stripe RGB subpixel layout and geometry we first saw in the Galaxy Note 2.
Each pixel features loosely spaced red, green and blue subpixels, with the latter being a thin strip in comparison to the more traditional rectangular red and green subpixels:
Samsung Galaxy Tab S 10.5, S Stripe RGB
Choosing different geometries for the blue subpixels makes sense as they have lower luminous efficiency than their red and green counterparts. Through balancing of subpixel size and drive power this design should allowed for equal luminance among all three subpixels. The uneven spacing is something new for the Galaxy Tab S 10.5, as the design looked far more structured back in the Note 2 days.
The 8.4-inch model by comparison uses a diamond PenTile RG,BG layout:
Samsung Galaxy Tab S 8.4, Diamond PenTile
This is similar to what we saw on the Galaxy Note 3, and just like before you get two subpixels per unit pixel instead of three in a traditional RGB stripe. Thankfully the pixel density on the Galaxy Tab S 8.4 is high enough that I wasn’t able to discern individual pixels or be bothered by the diamond PenTile layout. I will admit that I’ve never been the most sensitive to PenTile or PenTile-like sub pixel arrangements, so your mileage may vary.
With the Galaxy S5, Samsung finally delivered a reasonably accurate out of box display calibration as an option. In bringing AMOLED to its tablet lineup, I wondered if Samsung would do the same here. Thankfully the answer appears to be yes.
The new displays have the same adaptive setting as the GS5, which adjusts display tint based on ambient light temperature. There are three predefined color settings, down from the five on Galaxy S5, if you prefer something a bit more predictable.
Although Cinema ends up being the most accurate on the GS5, AMOLED Cinema doesn’t get the same treatment on the Galaxy Tab S. It’s actually the new basic mode that most closely tracks with sRGB. The two AMOLED modes trade off color accuracy for more saturation. I ran our display suite through all of the modes on the Galaxy Tab S 10.5 to illustrate the difference:
| Samsung Galaxy Tab S 10.5 Color Profiles | |||||||||
| Average White Point | Grayscale DeltaE 2000 | Gamut DeltaE 2000 | Saturation Sweep DeltaE 2000 | GMB ColorChecker DeltaE 2000 | |||||
| AMOLED - Cinema | 7540K | 5.2572 | 6.8855 | 5.9306 | 7.0418 | ||||
| AMOLED - Photo | 6576K | 1.7425 | 4.8109 | 4.5933 | 3.3633 | ||||
| Basic | 6516K | 1.8378 | 2.8114 | 2.6195 | 2.4249 | ||||
| Basic (Galaxy Tab S 8.4) | 6294K | 2.3914 | 3.4564 | 2.7639 | 2.2186 | ||||
I’ve also included all of the CIE diagrams and test swatch comparisons in a gallery below if you want to have a closer look at what the AMOLED modes do. In short, both the photo and cinema modes oversaturate just in different ways. Photo appears to saturate evenly across all colors, while cinema mode compresses some while pushing out others.
As it’s the most accurate setting, I ran all of our comparison data with the basic mode enabled. In this mode the Galaxy Tab S’ display is among the best we’ve ever tested. On top of having good color accuracy, the new display delivers the awesome contrast ratio that AMOLED displays are known for. As you’ll see later on, there are definite power benefits as well when it comes to watching movies on these displays.
Samsung Galaxy Tab S 10.5
Samsung Galaxy Tab S 8.4
Samsung Galaxy Tab S 10.5 - Basic Profile
Samsung Galaxy Tab S 10.5 - Basic Profile
Samsung Galaxy Tab S 8.4 - Basic Profile
Samsung Galaxy Tab S 8.4 - Basic Profile
Samsung Galaxy Tab S 10.5 - Basic Profile
Samsung Galaxy Tab S 8.4 - Basic Profile
Samsung Galaxy Tab S 10.5 - Basic Profile
Samsung Galaxy Tab S 10.5 - Basic Profile
Samsung Galaxy Tab S 8.4 - Basic Profile
Samsung Galaxy Tab S 8.4 - Basic Profile
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darwinosx - Friday, June 27, 2014 - link
More derivative cheap junk from Samsung. Ugh. I can't stand their products.bigboxes - Saturday, June 28, 2014 - link
Based on your screen name you couldn't be biased. Nah. You can keep your overpriced, underspeced Apple crap. I don't think you read the review at all. You saw Android and Samsung and copy/pasted your reply. You fanbois get old. Grow up.zodiacfml - Friday, June 27, 2014 - link
sigh, if only I have money to burn for that great screen.dusk007 - Sunday, June 29, 2014 - link
The display analysis here makes no mention as to what AMOLED Photo is supposed to be. It is calibrated to AdobeRGB but the article makes it out like it is only some other kind of oversaturated eye catching AMOLED setting.Anybody that wants to read more about the main interesting feature of this tablet which sets it apart should check out the display review on displaymate.com .
http://www.displaymate.com/OLED_Tablet_ShootOut_1....
It is an astounding display and especially stands out in metrics that the human sight apparatus values far more than color accuracy. Color accuracy is useful for content producers but also the one thing that our brain automatically corrects for and one of the last that a normal unbiased person would pick as the primary quality indication (unless it is really significantly off). Still it is one of the most accurate displays out there. I feel Anandtech is a bit too obsessed with color accuracy. It isn't unimportant but anybody coming from the eye related medical profession would say there is more to a display and its subjective impact.
marytattoo - Sunday, June 29, 2014 - link
i'd hoped to see a review of this tablet vs the 8.4 pro. besides the screen, i'm not sure of the difference. is it huge?DiHydro - Wednesday, September 3, 2014 - link
"Both tablets feature IR transceivers and stereo speakers." Are these really transceivers, or are they just transmitters? If they are transceivers, that opens up a lot more possibility using IR to learn remote codes, and to talk to other tablets and IrDA devices.jh20001 - Tuesday, November 25, 2014 - link
I have been looking for a tablet to kick around the house that not only let me read all my favorite books on my downtime, but also controlled things around the house like light switches and the TVs. I have been in this home automation kick as of late, so that of course was a must have feature. I was reading around and almost bought a Nexus until I read in one mag that the new Samsung destroyed it in performance. After reading a few more online (ie, here on anandtech, or http://pocinc.net/blog/product-reviews/review-sams... or the one at Cnet), I wound up getting sold on it. Let me tell you…..yeah baby! This thing rocks my world. I even take it to work with me when possible. It’s like my new best friend }:) Also good with games and Netflix....oh I needs me my Netflix!Bpositive - Sunday, March 22, 2015 - link
I just bought the tab s 10.5 and generally very happy with it, however I am quite disappointed that the screen shows quite a lot chromatic aberration (color fringing). Have others the same problem or do I have a faulty unit?