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Samsung Galaxy S7 vs. Apple iPhone 6s

The Galaxy S and the iPhone release schedules are out of lockstep, so each gets a shot at sticking around at the top level for at least half of the year. This season, the new Samsung Galaxy S7 lands right in the fast lane with the iPhone 6s already at cruising speed. Come fall, the lanes will change but the chase will continue.

Samsung's flagship has never been stronger - the company finally managed to reconcile the wealth of features its loyal fans love with a long-overdue redesign that was meant to win new converts. The S6 tried hard to appeal to the latter at the risk of alienating the former.

Galaxy S7 vs. iPhone 6s

The iPhone 6s has the crowd its predecessors had - things there change slowly though to be fair Apple added a few bells and whistles to the UI (3D Touch), the camera (4K videos and Live photos), the chipset (2 gigs of RAM, at long last).

Samsung Galaxy S7

Apple iPhone 6s

  • IP68 water and dust resistance
  • Bigger, higher-res screen with Always On mode
  • OIS-enabled camera geared for low-light shooting, Dual Pixel autofocus
  • Bigger battery; fast and wireless charging too
  • More base storage plus a microSD slot
  • Heart rate sensor with SpO2; NFC and Magnetic card emulation
  • Dual-SIM model
  • More base storage (32GB vs. 16GB, but no 128GB option)
  • All metal body
  • 3D Touch
  • Reversible USB connector (Lightning)
  • More compact
  • Larger storage options available
  • Faster fingerprint reader
Apple's conservative approach to adding new features leaves the iPhone 6s with little to brag about, but every Apple higher-up will tell you it's about the overall experience and not on-paper specs.
The Galaxy S7 is very fresh - it only just started shipping - and its youth gives it a leg up in this fight. Is it enough to make it the most popular 5-or-so inch phone out there?
The Galaxy S6 was Samsung's boldest step yet and while the phone sold in droves, the complaints came in similar measure. Getting rid of the microSD slot, changing its mind about waterproofing, the protruding camera, the sealed battery.
The message from consumers was heard loud and (mostly) clear and the Samsung Galaxy S7 resolves all but the last complaint - the battery is still non-removable, but the company thinks long battery life and fast charging methods (both wired and wireless) are a good enough substitute.
Apple works differently. In the producer-consumer relationship, it's the company that sets the expectations, not the buyers. So it's more about "what will they come up with next?" rather than "why did they remove this or that?" The big additions this year were 3D Touch, 4K videos and Live photos, we'll cover those in their respective chapters.
The finish aside, both phones are essentially the same shape, with rounded sides that help ergonomics. The Galaxy S7 is slightly bigger in all dimensions, due to its bigger screen and battery.
Metal and glass - Galaxy S7 vs. iPhone 6s Metal and glass - Galaxy S7 vs. iPhone 6s Metal and glass - Galaxy S7 vs. iPhone 6s Metal and glass - Galaxy S7 vs. iPhone 6s
Metal and glass
As for the materials, both use metal and glass, just in different proportions. Samsung flaunts a glass back, a more premium version of the glossy plastic phones the company used to be known for (memories of smudgy, oily piano black plastic came flooding in).
Perhaps it has something to do with wireless charging - true, Qualcomm has a solution for metal-backed phones, but pushing as much electricity as Samsung wants is going to be difficult. "Fast wireless charging" is as fast as the standard issue 5V/2A wired chargers many phones come with, going against the preconception that wireless charging is slow.
Apple has been reluctant to adopt this wire-free charging mode, plus it needed to break away from the glass-backed look of the iPhone 4.
Different wired charging ports and different chargers from the retail box - Galaxy S7 vs. iPhone 6s Different wired charging ports and different chargers from the retail box - Galaxy S7 vs. iPhone 6s Different wired charging ports and different chargers from the retail box - Galaxy S7 vs. iPhone 6s Different wired charging ports and different chargers from the retail box - Galaxy S7 vs. iPhone 6s
Different wired charging ports and different chargers from the retail box
Both metal and glass suffer from durability issues compared to the less attractive polycarbonate. Still, we think the durability angle works in favor of the iPhone 6s. Anodized metal handles scratches much better than glass and while it is prone to dents, at least those dents don't develop into cracks.
Some independent testing shows Galaxy S7's back glass cracks more easily than the front. Both are Gorilla Glass 4, suggesting that the back panel is thinner (to save weight, most likely).
The Galaxy S7 is slightly bigger than the iPhone 6s in all dimensions - Galaxy S7 vs. iPhone 6s The Galaxy S7 is slightly bigger than the iPhone 6s in all dimensions - Galaxy S7 vs. iPhone 6s The Galaxy S7 is slightly bigger than the iPhone 6s in all dimensions - Galaxy S7 vs. iPhone 6s The Galaxy S7 is slightly bigger than the iPhone 6s in all dimensions - Galaxy S7 vs. iPhone 6s
The Galaxy S7 is slightly bigger than the iPhone 6s in all dimensions
Cosmetic damage aside, the S7 is IP68 certified, meaning it can survive under 1.5m of water for half an hour. You probably don't want to test it to its limit, but everyday spills will just slide off the S7. Unlike the S5 brand of waterproofing, the new model does not require any unsightly flaps over any of its ports (forgetting to seal those up was a recipe for disaster and dealing with them every time at every charging was a hassle).
Galaxy S7 vs. iPhone 6s
The other major advantage over the iPhone is cheap storage - the Galaxy S7 starts off with more to begin with, 32GB vs. 16GB, and you can use a microSD to add up to 200GB more where the iPhone 6s tops out at 128GB. And that one comes at a hefty $200 markup while a 128GB Samsung Pro+ card (rated at 95MB/s read, 90MB/s write) is ~$120. That's not as fast as the built-in UFS storage, but it won't be an issue.
The Galaxy S7 has a place for a microSD card, the iPhone 6s does not - Galaxy S7 vs. iPhone 6s The Galaxy S7 has a place for a microSD card, the iPhone 6s does not - Galaxy S7 vs. iPhone 6s 
The Galaxy S7 has a place for a microSD card, the iPhone 6s does not
The camera on the S6 protruded significantly, but the Galaxy S7 is slightly thicker and the camera sticks out no more than it does on the iPhone 6s.
The camera is no longer a  The camera is no longer a  The camera is no longer a  The camera is no longer a
The camera is no longer a "hump"
Winner: Samsung Galaxy S7. Even if you feel the draw of a metal back, the cheap storage upgrades and protection against accidental water damage (that's another for of cost cutting) are enough to secure the win for the Samsung-born flagship.

Performance

Cross-platform performance testing is a tricky subject, but the issues faced by benchmark developers that support both Android and iOS are the same that face app developers.
The Samsung Galaxy S7 comes in two different configurations (aimed at different regions). The "international" version, like the one we have, is powered by an Exynos 8890 chipset, while the one heading to the US (and other regions) is based on the Snapdragon 820.
Its's custom core galore in this chapter. The Exynos 8890 uses Samsung's proprietary "Mongoose" cores, four of them in the big cluster. The little cluster is made up of four Cortex-A53s.
The Snapdragon 820 is all Qualcomm custom cores, Kryo, split into a big.LITTLE setup again, but there is only four cores in total, two in each cluster. We don't have an S820 Galaxy S7 around, so we'll include the scores of the S7 edge, which should perform identically.
Then there's the Apple A9, the iPhone 6s chipset, which has a dual-core processor with the Apple-designed Twister cores.
Galaxy S7 vs. iPhone 6s
The Exynos chipset features an optimization that helps it when the app uses few cores. If only two Mongoose cores are engaged, they boost to 2.6GHz, up from the top speed of 2.3GHz when all four of them are online.
The big Kryo cores top out at 2.15GHz while the even bigger Twister cores go to 1.84GHz max.
"Even bigger" since in single-core performance the Apple-designed processor comes out on top, Mongoose is on the bottom (despite the clock speed advantage) and Kryo splits the difference.

GeekBench 3 (single-core)

Higher is better
  • Apple iPhone 6s2542
  • Galaxy S7 edge (Snapdragon)2345
  • Samsung Galaxy S72170
iOS devs know their target device very well - 2 cores, that's it - while their Android colleagues have to deal with many octa-core CPUs of different makes. The "octa-core" label often hides low-power Cortex-A53 cores, so a well-built Android app has to split its workload among as many cores as possible.
A properly powerful chip like the Exynos 8890 shines on multi-threaded tests and turns the tables on the other two. The Snapdragon 820 design again falls between it and the iPhone.

GeekBench 3 (multi-core)

Higher is better
  • Samsung Galaxy S76360
  • Galaxy S7 edge (Snapdragon)5420
  • Apple iPhone 6s4427
Basemark OS 2.0 points to the S820-based Galaxy as the winner in overall performance, while the Exynos version is at the bottom, hot on the heels of the iPhone 6s.

Basemark OS 2.0

Higher is better
  • Galaxy S7 edge (Snapdragon)2352
  • Apple iPhone 6s2195
  • Samsung Galaxy S72128
We have three different GPUs - a Mali-T880 in the Exynos Galaxy S7, an Adreno 530 in the Snapdragon 820 version and a PowerVR GT7600 in the Apple handset.
Looking at the offscreen test (which ignores screen resolution), the Adreno comes out as the clear winner, with the Mali and PowerVR roughly equal.

GFX 3.0 Manhattan (1080p offscreen)

Higher is better
  • Galaxy S7 edge (Snapdragon)49
  • Apple iPhone 6s39.5
  • Samsung Galaxy S738
Of course, the Apple iPhone 6s has to render at much lower resolution than the Galaxies - 750 x 1,334px vs. 1,440 x 2,560px, That's less than a third of the pixel count!
Some games don't actually use the full screen resolution, but instead render internally at lower resolution.
That said, iPhone devs can get very close to 60fps at native resolution, while Galaxy S7 games will run closer to 30fps if they go for QHD. The other option is to reduce fidelity, a QHD screen is its own form of anti-aliasing.

GFX 3.0 Manhattan (onscreen)

Higher is better
  • Apple iPhone 6s53.6
  • Galaxy S7 edge (Snapdragon)29
  • Samsung Galaxy S727
BasemarkES 3.1 shows an advantage for the Mali-T880 over Adreno 530 (it was the reverse in GFX), so the particular 3D engine a game uses may affect performance. Again, iOS devs have it easy since they have to target Apple A9 and A9X (for iPads), allowing them to optimize their games better.

Basemark ES 3.1 / Metal

Higher is better
  • Apple iPhone 6s879
  • Samsung Galaxy S7732
  • Galaxy S7 edge (Snapdragon)624
Winner: Depends. Its big Twister cores have great single-core performance, which makes the life of an iOS app developer easy. The Galaxy S7 comes out ahead in multi-core tests but not by much.
The Samsung also has the more powerful GPU and while it has a lot more pixels on its screen, few games will actually render at full resolution so we put more weight on the offscreen performance. One class of games will use every screen pixel it can get - VR games - and those are very demanding even for high-end PCs. VR isn't on Apple's mind though, not yet.
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