Initial Thoughts

With the Galaxy S6 and S6 edge Samsung claimed that they wanted to completely rethink how they designed and made smartphones. On the surface, it seems that Samsung has delivered on this promise as the Galaxy S6 and S6 edge are unlikely any other Galaxy S phone they have made previously. There is no removable battery, no microSD slot, or even a removable back cover. I would’ve liked to see a microSD slot, but I personally wouldn’t be affected by being limited to 32GB of internal storage. The removable battery issue is a bit concerning for me though, as it’s likely that disassembling this phone to replace the battery will require extensive use of a heat gun to loosen glue that may not adhere properly when reassembled. The materials are now aluminum and glass, which dramatically affect in-hand feel. I definitely like the move to the aluminum and glass design for the improved look and feel of the phone, but the use of the glass back is a bit annoying as the phones have a tendency to slide off pretty much any table. The edge variant of the phone also feels quite sharp in the hand and almost too thin to hold, but this is generally quite subjective.

Outside of design, there is a lot to talk about in the SoC and display. The Exynos 7420 SoC appears to be class-leading in performance, although there is the obvious question of power consumption that still has to be answered. Samsung’s first 14LPE SoC seems promising, although we’ve yet to validate whether big.LITTLE is more efficient than when we last tested it in the Exynos 5433. The GPU is generally quite close to the Adreno 430, with about a 10-20% advantage in performance depending upon the workload, although at the same clock speed it probably wouldn’t have any advantage. The 1440p display can also reduce performance compared to a 1080p display.

Speaking of displays, Samsung has integrated an incredible display into both versions of the Galaxy S6. I’m really blown away at how far AMOLED has come in the past few years, as the Galaxy S6 is one of the best displays we’ve tested for luminance and overall color accuracy. The only real problems I can see are color shifts with viewing angles, and white point tending to be a bit green depending upon the unit we’re looking at. There are some edge-specific issues, namely uneven luminance and odd color shifting towards green hues on white at the edge of the display. Other than this, the display of the Galaxy S6 is relatively perfect with its dark, inky blacks and amazing color.

Obviously an SoC and display aren’t the only issues to discuss in a smartphone, but given the limited time that we’ve had with the device this was all that could be tested. We hope to have our full review for both devices completed in the near future, and to be able to provide the full picture of the Galaxy S6 line at that time. Pre-orders for the US Galaxy S6 variants will begin on March 27th, and the phone will go on sale on April 10th throughout the US with 32, 64, and 128 GB SKUs in Black Sapphire, White Pearl, and Gold Platinum. The S6 edge and S6 will be available on AT&T, Sprint, T-Mobile, Verizon, and US Cellular, but on Boost Mobile, Cricket Wireless, and MetroPCS only the S6 will be available.

GPU Performance and Display
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  • danbob999 - Friday, March 27, 2015 - link

    What I'd like is an idle power consumption test. How long it can run with screen off, but sync and network on.
  • Arbie - Thursday, March 26, 2015 - link

    No microSD = no sale. And I certainly would appreciate an "eventually replaceable" battery.

    Why vendors make high-$$ devices with processing power and displays perfect for media consumption, and then cripple that aspect by omitting microSD, is beyond me. I carry something like this for all purposes, not just to be a phone. And if you want it only as a phone, why pay even half this price?
  • mkozakewich - Thursday, March 26, 2015 - link

    Part of the irony is how replaceable batteries really only work for thicker, low-quality devices. Notice how this dropped another mm in thickness?
    "Free market" and all that. This is where the forces are pushing. Thinness also ruins the camera prospects and battery life.
  • AndrewJacksonZA - Thursday, March 26, 2015 - link

    Hi guys

    Why are you throwing in the iPad Air - a tablet - with a phone review? Comparing apples and oranges?

    Thank you
    Andrew
  • AndrewJacksonZA - Thursday, March 26, 2015 - link

    (Edit button?)

    Why are you throwing in the iPad Air and the NVidia SHIELD- tablets - with a phone review?
  • BillyONeal - Thursday, March 26, 2015 - link

    1. Because at 5+ inches many customers may end up deciding to get a phone to replace an older phone and an older tablet.
    2. Because the iPad and Shield models are "tablets are big phones" in that they use mobile SoCs and mobile operating systems. They're a fair comparison point.
  • lilmoe - Thursday, March 26, 2015 - link

    Except that tablets have MUCH larger thermal headroom... No, the comparison isn't "fair".
  • will54 - Thursday, March 26, 2015 - link

    I'm assuming that its not a direct comparison but just to show you where the phone stacks up to a full sized tablet.Remember the snapdragon 810 MDP/T is in a tablet as well so its just to get a good idea to how well the 7433 compares against a tablet.
  • lilmoe - Friday, March 27, 2015 - link

    I initially assumed the same as well, it's nice to see how smartphone SoCs compare to other SoCs (or the same) with larger thermal headroom, shows how much progress has been made.

    But my comment was in direct response to BillyONeal who claims that the comparison is "fair" on a one to one basis. 5" smartphones are not the same device category as tablets, and both don't target the same demographic. Normally, those looking for a smartphone aren't going to change their mind into buying a tablet. That said, it IS normal for people to prefer buying a laptop over a desktop, but it's STILL not OK to compare laptop and desktop parts.
  • Deelron - Thursday, March 26, 2015 - link

    Actually it was useful for me when I was (late last year) deciding to get either a new phone or tablet. I actually ended up with the tablet as the performance increase for the cost was (for me) well worth keeping the slower phone for basic calling and messaging.

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