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iPhone Q&A

Update Published September 21, 2021

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What are all the differences between the iPhone 6s & iPhone 6s Plus? Which is best for me?

Please lưu ý the iPhone 6s và iPhone 6s Plus models have been discontinued. However, this Q&A has been updated with the latest on iOS support details và more. It is quite useful to anyone buying or selling one of these models on the used market.

It would be easy to take a look at the larger iPhone 6s Plus và smaller iPhone 6s side-by-side & conclude that kích thước is the differentiating factor. Although there is some truth to lớn this general observation, there are other important differences that are not so obvious.

Photo Credit: Apple, Inc. (iPhone 6s Plus, Left; iPhone 6s, Right)

It also is worth noting that there actually are four distinct iPhone 6s models -- the iPhone 6s (AT&T/SIM Free), iPhone 6s (Global), iPhone 6s (Mainland China), and iPhone 6s (China Mobile) -- & four distinct iPhone 6s Plus models -- the iPhone 6s Plus (AT&T/SIM Free), iPhone 6s Plus (Global), iPhone 6s Plus (Mainland China), and iPhone 6s Plus (China Mobile) -- and each of the four have network support differences that are particularly important lớn evaluate.

The similarities of each model are good lớn know, too.

External Differences và Similarities

Both the iPhone 6s and iPhone 6s Plus use thin aerospace-grade 7000 series aluminum cases with thin bezels around the respective multitouch "Retina HD" display covered by an ion-strengthened glass cover that táo bị cắn dở boasts is the "strongest glass on any smartphone."

Bothscreens are LED-backlit, have IPS technology và an advanced "Tapic Engine" in lieu of a simpler vibration sensor, and have a 500 cd/m2 typical maximum brightness as well as "dual-domain pixels" which means a wider viewing angle than more primitive displays.

Both screens also introduce new pressure-sensitive "3D Touch" capability that support gestures that hãng apple refers to lớn as "Peek and Pop" lớn "dip in & out of nội dung without losing your place" for quicker access lớn a variety of functions within the iOS và third-party software.

However, the displays are different, & they differ by more than just physical kích thước -- 4.7" (1334x750) for the iPhone 6s và 5.5" (1920x1080) for the iPhone 6s Plus.

The iPhone 6s has a superior 1400:1 contrast ratio compared khổng lồ 1300:1 for the iPhone 6s Plus. The iPhone 6s Plus, on the other hand, has a higher px density, 401 ppi compared khổng lồ 326 ppi for the iPhone 6s.Unless you have particularly sharp vision, it is unlikely that you will be able to lớn differentiate the higher px density of the iPhone 6s Plus, but this display is proper "HD" -- which is defined as at least 1920x1080 -- whereas the iPhone 6s display is not.

Photo Credit: Apple, Inc. (iPhone 6s và iPhone 6s Plus color Options)

Both models are available in four màu sắc options -- (1) gold, (2) silver, a pink tinted (3) "rose gold," which all have a white glass front and (4) "space" gray, which has a đen glass front.

The iPhone 6s & iPhone 6s Plus also both have a faster "second generation" cảm ứng ID fingerprint sensor in the home button for biometric authentication, a bottom mounted headphone jack, microphone, Lighting connector, & a single built-in speaker as well as an on/off switch on the righthand side.

Camera Differences

The iPhone 6s & iPhone 6s Plus both have an identical "FaceTime HD" camera on the front of each device. This camera has a 5 megapixel sensor, an f/2.2 aperture, & can record 720p video.

Both models have an "iSight" camera on the rear with a 12 megapixel sensor, 1.22µm pixels, an f/2.2 aperture, và are capable of recording 4K đoạn clip (3840x2160) at 30 fps, 1080p đoạn clip at 30 fps or 60 fps (as well as 120 fps for 1080p slo-mo & 240 fps for 720p video).

However, the iSight camera on the iPhone 6s Plus includes optical image stabilization for both video clip and still photos, which means that the device performs better with shaky hands & provides much better low light performance than the standard iPhone 6s.

Identification Differences

It is easy khổng lồ differentiate between the iPhone 6s và iPhone 6s Plus when both are side-by-side, but identifying the specific iPhone 6s or iPhone 6s Plus requires more precise data.

Each of the devices can be uniquely identified by model Number, which is listed on the back of each iPhone in tiny type:


Model Number

iPhone 6s (AT&T/SIM Free)


iPhone 6s (Global)


iPhone 6s (Mainland China)


iPhone 6s (China Mobile)


iPhone 6s Plus (AT&T/SIM Free)


iPhone 6s Plus (Global)


iPhone 6s Plus (Mainland China)


iPhone 6s Plus (China Mobile)


Although the mã sản phẩm Numbers are sufficient, these iPhone 6s & iPhone 6s models also can be pinpointed by other identifiers.

Specifically,"s Ultimate iLookup feature -- as well as the ứng dụng for quả táo 5 or later -- can precisely identify these iPhone models by Order Number (referred lớn as "Model" within the quả táo "Settings" tiện ích under General > About), and their Serial Numbers, as well.

Battery Life Differences

Battery life is another important point of differentiation between the iPhone 6s and iPhone 6s Plus. As the iPhone 6s Plus is physically larger, hãng apple was able to pack in a larger capacity battery, & it delivers longer runtime accordingly:

iPhone 6siPhone 6s Plus
Talk Time (3G)14 Hours24 Hours
Internet Use (3G)10 Hours12 Hours
Internet Use (4G/LTE)10 Hours12 Hours
Internet Use (Wi-Fi)11 Hours12 Hours
HD đoạn phim Playback11 Hours14 Hours
Audio Playback50 Hours80 Hours

The iPhone 6s Plus provides longer standby time as well -- up to 16 days -- compared to just 10 days for the regular iPhone 6s.

Wireless Connectivity và Data Differences

There is a great giảm giá of confusion about the cellular connectivity of the iPhone 6s and iPhone 6s Plus, no doubt at least partially because Apple"s original documentation was incorrect. Confusingly, apple originally stated that the iPhone 6s (AT&T) A1633 and iPhone 6s Plus (AT&T) A1634 models vì not support CDMA. They do, though, & Apple subsequently corrected this error.

Consequently, the only connectivity difference between the A1633/A1634 models intended for use on AT&T -- but also sold unlocked, contract-free, and without a bundled nano-SIM starting October 8, năm ngoái -- và the "global" A1688/A1687 models is that the AT&T model also supports LTE band 30 (WCS) for improved speed và reduced data congestion, largely in the future, as AT&T is in the process of adding tư vấn for this standard in major US cities.

All iPhone 6s và iPhone 6s Plus models support TD-SCDMA 1900 (F), 2000 (A); UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz); CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz); & GSM/EDGE (850, 900, 1800, 1900 MHz).

Complete LTE tư vấn is enumerated below:

iPhone mã sản phẩm Model No. LTE Bands (4G)
6s (AT&T)A1633LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30); TD-LTE (38, 39, 40, 41)
6s (Global)A1688LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29); TD-LTE (38, 39, 40, 41)
6s (China)A1700FDD-LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29); TD-LTE (38, 39, 40, 41)
6s (CN Mobile)A1691FDD-LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29); TD-LTE (38, 39, 40, 41)
6s+ (AT&T)A1634LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30); TD-LTE (38, 39, 40, 41)
6s+ (Global)A1687LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29); TD-LTE (38, 39, 40, 41)
6s+ (China)A1699FDD-LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29); TD-LTE (38, 39, 40, 41)
6s+ (CN Mobile)A1690FDD-LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29); TD-LTE (38, 39, 40, 41)

Note that the mainland đài loan trung quốc iPhone 6s và iPhone 6s Plus models tư vấn the WCDMA flavor of UMTS on the same frequencies as the other models as well as the same selection of FDD-LTE and TD-LTE bands as the "global" devices, but UMTS và FDD-LTE formally are "only for international roaming" rather than for use within mainland China. No doubt clever hackers will figure out workarounds for mainland use, too.

All iPhone 6s & iPhone 6s Plus models support 802.11a/b/g/n/ac Wi-Fi with MIMO as well as công nghệ bluetooth không dây 4.2, too.

Internal Differences & Similarities

In terms of specific parts, there are numerous internal differences between the iPhone 6s and iPhone 6s Plus. For example, the displays, cameras, & batteries are different as are a variety of other internal components.

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However, in general terms, these models also have much in common. Both have 2 GB of RAM, for example. Both also are powered by a dual chip core 64-bit 1.8 GHz táo apple A9 processor with an embedded M9 motion coprocessor. Interestingly, as conclusively determined by third-party analysis from Chipworks, there actually are two different "A9" processors used in these models. Some have a 14 nm Samsung-produced APL0898 processor & others have a 16 nm TSMC-produced APL1022 processor with slight variation in heat and battery life.

Although there was some controversy that the battery life, in particular, was much worse in models with the Samsung processor than the TSMC processor, perhaps as much as 20% less when running the Geekbench 3 benchmark. Apple formally responded that the battery life difference between individual devices was no more than 2 lớn 3 percent in "real-world usage" and a variety of independent tests confirm that battery life generally is better with the TSMC processor, but just barely.

Both the iPhone 6s & the iPhone 6s Plus originally were available with 16 GB, 64 GB, or 128 GB of storage. Lưu ý that the original entry-level configurations have 16 GB of storage whereas the mid-level offering was 64 GB, which meant that the mid-level configuration provided 300% more storage for just 15% more money when the device is purchased outright.

On September 7, 2016, táo apple discontinued the 16 GB & 64 GB options và introduced a new entry-level 32 GB option alongside the 128 GB capacity. Accordingly, the higher-end 128 GB option once provided 300% more storage for 18% more money when purchased outright. Táo bị cắn dở discontinued the iPhone 6s entirely on September 12, 2018, though.

Both devices also have an NFC (Near Field Communication) cpu to allow digital payments in conjunction with "Apple Pay" software, too.

iOS support Similarities

The iPhone 6s and iPhone 6s Plus both shipped pre-installed with quả táo 9 & provide full support for the operating system, including apple Pay. They fully tư vấn iOS 10, tiện ích ios 11, & almost fully tư vấn iOS 12, with the exception of the minor "Memoji" feature.

These models tư vấn iOS 13, but they vì not tư vấn the Adjust Portrait Lighting & High-Key Mono photgraphy features, Dolby Atmos playback, & modest AR features (Motion Capture và People Occlusion).

These models also support iOS 14. However, none tư vấn the minor car Keys, Spatial Audio, phầm mềm Clips, Location Anchors, Exposure Compensation, Burst Photos, QuickTake Video, và On-Device Dictation features.

Finally, the iPhone 6s & iPhone 6s Plus tư vấn the current version of the iOS, quả táo 15, but they bởi not tư vấn a large number of advanced features including Spatial Audio, Portrait Mode, Immersive Walking Instructions, Live Text in Photos, Live Text Translation, Visual Look Up, 3 chiều Landmarks, home Keys, and more.

iPhone 6s và iPhone 6s Plus Comparison Chart

These differences -- displays, cameras, battery life, identifiers, & dimensions -- as well as other details và pricing information are summarized below:

iPhone 6s
iPhone 6s PlusDisplay Size:Display Resolution: Pixel Density:Contrast Ratio:Front Camera:Rear Camera:Original Storage:Final Storage:Optical Image Stabilization:Optical video Stabilization: Talk Time (3G): 3G Battery Life: 4G Battery Life: Wi-Fi Battery Life: đoạn phim Playback: Audio Playback:Standby Time:Connector Type:SIM Card: Apple Pay (NFC):Touch ID:Dimensions: Weight: Original Price (US†):
326 ppi401 ppi
5 Megapixels5 Megapixels
12 Megapixels12 Megapixels
16, 64, 128 GB16, 64, 128 GB
32, 128 GB32, 128 GB
14 Hours 24 Hours
10 Hours 12 Hours
10 Hours12 Hours
11 Hours 12 Hours
11 Hours 14 Hours
50 Hours 80 Hours
250 Hours 384 Hours
5.44 x 2.64 x 0.28*6.23 x 3.07 x 0.29*
5.04 oz. (143 g)6.77 oz. (192 g)
US$649, US$749, US$849US$749, US$849, US$949

* In inches, height x width x depth.

† These prices are unlocked & contract-free. Carrier subsidized and lease options also are available.

So, should I buy an iPhone 6s or iPhone 6s Plus? Which is best for me?

At this point, most users should purchase a newer iPhone. However, for those on a budget -- and/or who really want a tai nghe jack -- the iPhone 6s or iPhone 6s Plus are well worth considering, especially because they still support the current version of the tiện ích ios at least until next year.

For most of those deciding just between the iPhone 6s và iPhone 6s Plus, the kích thước is the most important criteria. If you prefer khổng lồ use your thiết bị di động device with one hand, the iPhone 6s is a better choice than the iPhone 6s Plus. For those with all but the largest of hands, the iPhone 6s Plus really is a two-handed device và it"s too large lớn fit in the front pockets of many pairs of pants or jeans, as well.

However, if your sản phẩm điện thoại usage consists heavily of reading, watching video, and gaming -- & not nearly as much one handed typing & navigation (which can be awkward và make it rather easy lớn drop the device) -- and you tend khổng lồ carry your mobile in a briefcase, purse, or other bag rather than in a pocket, the iPhone 6s Plus can be an excellent choice. As noted above, the iPhone 6s Plus has (1) a higher resolution as well as a larger display, (2) a better unique camera, & (3) longer battery life, và those are excellent advantages of the larger option.

The iPhone 6s is a bit cheaper, và that may be another advantage of the smaller device, along with more convenient one-handed use & pocketability, too. If price is of great concern, you might also want khổng lồ consider an even cheaper used iPhone 6 or iPhone 6 Plus (although chú ý that the iPhone 6 and iPhone 6 Plus models no longer tư vấn the current version of the iOS).

iPhone Purchase & Sale Options

There are no shortage of places to buy a used iPhone. However, buying your iPhone from a good company with an excellent reputation -- and quality after sales tư vấn -- will provide the best experience and save you money & time, too.

Site sponsor OWC sells used iPhone models to individuals và Evertek sells used iPhone models khổng lồ US business customers (and ships bulk orders to wholesale customers worldwide).

Site sponsor GoRoostr can buy your older iPhone. GoRoostr has an A+ rating with the BBB, offers an instant price quote, không tính phí and insured FedEx shipping, và provides same day payouts 95% of the time.

In Australia, site sponsor Mac đô thị likewise has a variety of used iPhone models sold at low prices & available with a không tính tiền warranty & fast shipping across Australia.

Please also see"s Ultimate iComparison feature to dynamically compare any iPhone mã sản phẩm to any other iPod, iPhone, or iPad.