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iPhone 6s vs. iPhone 6: Has everything really changed?

Updated Dec 19th, 2018 9:05PM EST
iPhone 6s iPhone 6 Specs Comparison

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The new iPhone 6s is finally official. After months of leaks, Apple announced what we already knew we’d be getting, under a bold tagline: “The only thing that’s changed is everything.” But is that really the case? Some will tell you that the iPhone 6s is just an “S” update that might not be worth your attention. But the fact is the iPhone 6s brings a number of improvements that might make it the best “S” update to date.

In what follows, we’re going to compare the iPhone 6s to its predecessor specs-for-spec to see if everything has really changed.

DON’T MISS: iPhone 6s: The 9 best new features


The iPhone 6s and iPhone 6 are very similar, but the iPhone 6s is slightly bigger (138.3 x 67.1 x 7.1mm vs. 138.1 x 67 x 6.9mm) and heavier (143g vs. 129g). The 2015 iPhone comes with a taptic feedback Retina HD display (with 3D Touch multitouch support) that’s partially responsible for the increase in weight, and the device has sturdier metal case made of 7000 Series aluminum.

Processor, memory, and storage

The iPhone 6s and iPhone 6 both have 64-bit processors and motion coprocessors. But the new handset packs a faster, more energy-efficient A9 chip with significantly faster graphics that also happens to have an embedded M9 processor capable of offering always-on functionality.

Memory-wise, the iPhone is expected to pack 2GB of RAM, but that’s yet to be confirmed while the iPhone 6 has 1GB of memory. As for storage, both devices come in the same 16GB, 64GB and 128GB versions. It’s too early to say whether there are any differences in memory quality between them, but pricing is the same.


For the first time in years, Apple has changed the resolution of the iPhones camera.

The iSight camera in the iPhone 6s is in many ways similar to the one found in the iPhone 6. What sets it apart is a 12-megapixel sensor with 1.22µ pixels (compared to 8-megapixel sensor with 1.5µ pixels on iPhone 6), Live Photos support (essentially Apple special GIFs with audio), tap to focus with Focus Pixels, and up to 63-megapixel panorama shots (up from 43 megapixels).

When it comes to video recording, the iSight camera on the iPhone 6s also supports 4K video recording (3840 by 2160) at 30 frames per second, and additional slo-mo video support (1080p at 120fps and 720p at 240fps). The camera offers support for 8-megapixel still photos during 4K video recording, playback zoom and time-lapse video with stabilization.

The FaceTime camera on the iPhone 6s has a 5-megapixel sensor and Retina Flash while the iPhone 6 has a 1.2-megapixel selfie shooter with no flash.


The iPhone 6s and iPhone 6 have virtually the same usage time quotes though the new iPhone generation has a smaller battery, according to leaks.


The iPhone 6s supports faster 4G LTE (LTE-A) compared to the iPhone 6, better wireless (802.11a/b/g/n/ac with MIMO vs. 802.11a/b/g/n/ac) and Bluetooth (4.2 vs. 4.0).


Finally, the iPhone 6s has a second-generation Touch ID fingerprint sensor built into the home button that’s supposed to be even faster and more reliable than its predecessor.


Technically, both devices will run iOS 9, but the iPhone 6s will have new 3D Touch multitouch features and support for Live Photos and Motion wallpaper backgrounds.

iPhone 6s Plus vs. iPhone 6 Plus

We’ll note that the iPhone 6s Plus vs. iPhone 6 Plus comparison is very similar, as the bigger devices pack the same internals. Obviously, the iPhone 6s Plus is also slightly larger than the iPhone 6 Plus due to the same 3D Touch hardware embedded in the display.

One feature that sets the iPhone 6s Plus apart from the iPhone 6s is the optical image stabilization available for the rear camera, and the bigger display resolution (full HD for the phablet, and just HD for the iPhone 6s).

A table showing a comparison between the iPhone 6s and the iPhone 6 follows below.

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Chris Smith Senior Writer

Chris Smith has been covering consumer electronics ever since the iPhone revolutionized the industry in 2008. When he’s not writing about the most recent tech news for BGR, he brings his entertainment expertise to Marvel’s Cinematic Universe and other blockbuster franchises.

Outside of work, you’ll catch him streaming almost every new movie and TV show release as soon as it's available.