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MobileIQ

Head to head

Apple iPhone 14vsApple iPhone 12

The short answer

Choose the iPhone 14 for more base storage. The iPhone 12 wins no row by a gap you’d notice. Apple publishes no date for either; its record with retired iPhones points to 2029–2033 for the iPhone 14 and 2027–2031 for the iPhone 12, our estimate, not Apple’s.

Released
2022-09-16endoflife.date, retrieved 2026-08-19
Security updates until
Not published by the makerendoflife.date — iPhone, retrieved 2026-08-19
Released
2020-10-23endoflife.date, retrieved 2026-08-19
Security updates until
Not published by the makerendoflife.date — iPhone, retrieved 2026-08-19

1 win for iPhone 140 wins for iPhone 125 gaps borderline1 difference you won’t notice

Verdict: iPhone 14 ahead on 1 row, iPhone 12 on none

On the makers’ published figures, the iPhone 14 wins on storage (base) (128 GB against 64 GB). 5 gaps are borderline, differences most people would not notice: typical brightness (800 nits against 625 nits) for the iPhone 14, RAM (6 GB against 4 GB, both from GSMArena) for the iPhone 14, battery capacity (3,279 mAh against 2,815 mAh, both from GSMArena) for the iPhone 14, claimed video playback (20 h against 15 h) for the iPhone 14 and Geekbench 6 (CPU, multi-core) (5,396 against 4,246, both from Geekbench Browser) for the iPhone 14. The difference in weight is below the threshold you would notice. Both state the same display size, peak brightness, HDR peak brightness, fast charging and wireless charging. The other 31 rows have no threshold or no direction to judge by, so nobody wins them.

True to scale

iPhone 14 · 146.7 × 71.5 mmiPhone 12 · 146.7 × 71.5 mm

Outlines from each maker’s published dimensions, drawn to scale. Corner rounding is our drawing convention, not a measurement.

Specifications

A win is marked only where the figures can be ranked and the gap is one you could notice. A row the site has no threshold for says whether the two differ, and that it is not ranking them. = marks the same figure on both, ≠ not ranked a difference with no ranking. Every figure carries its source.

Body

SpecificationApple iPhone 14Apple iPhone 12
DimensionsDiffers, but not ranked.
146.7 x 71.5 x 7.80 mmOfficial
146.7 x 71.5 x 7.4 mmOfficial
Weight

You won’t notice this difference.

BuildSame.
Ceramic Shield front, Glass back and aluminium designOfficial
Ceramic Shield front, Glass back and aluminium designOfficial
SIMDiffers, but not ranked.
Dual SIM (nano-SIM and eSIM); Dual eSIM supportOfficial
Dual SIM (nano-SIM and eSIM)Official
Water/dust ratingSame.
UnlockSame.
Face ID (TrueDepth camera)Official
Face ID (TrueDepth camera)Official

Display

SpecificationApple iPhone 14Apple iPhone 12
Display typeSame.
Super Retina XDR OLED, HDR, True Tone, Wide colour (P3)Official
Super Retina XDR OLED, HDR, True Tone, Wide colour (P3)Official
Display sizeSame.
ResolutionSame.
2532 x 1170Official
2532 x 1170Official
Pixel densitySame.
460ppiOfficial
460ppiOfficial
Peak brightnessSame.
1200nitsOfficial
1200nitsOfficial
Typical brightness
800nitsOfficial
625nitsOfficial

Marginal — most people won’t notice.

HDR peak brightnessSame.
1200nitsOfficial
1200nitsOfficial
Screen protectionSame.
Ceramic Shield frontOfficial
Ceramic Shield frontOfficial

Platform

SpecificationApple iPhone 14Apple iPhone 12
Operating systemDiffers, but not ranked.
iOS 163rd party
iOS 14.13rd party
OS versions supportedDiffers, but not ranked.
iOS 16 to iOS 27Official
iOS 14 to iOS 27Official
ChipsetDiffers, but not ranked.
A15 Bionic chipOfficial
A14 Bionic chipOfficial
CPUSame.
6-core CPU with 2 performance and 4 efficiency coresOfficial
6-core CPU with 2 performance and 4 efficiency coresOfficial
GPUDiffers, but not ranked.
5-core GPUOfficial
4-core GPUOfficial

Memory

SpecificationApple iPhone 14Apple iPhone 12
Storage (base)
128GBOfficialwins this row

iPhone 14 is ahead here, by a gap you’d notice.

Storage optionsDiffers, but not ranked.
128GB/256GB/512GBOfficial
64GB/128GB/256GBOfficial
RAM

Marginal — most people won’t notice.

Card slotSame.

Camera

SpecificationApple iPhone 14Apple iPhone 12
Main cameraDiffers, but not ranked.
Dual-camera system: 12MP Main 26mm f/1.5 with sensor-shift OIS; 12MP Ultra Wide 13mm f/2.4 120°Official
Dual 12MP camera system: Main and Ultra Wide camerasOfficial
Main sensor resolutionSame.
Main apertureDiffers, but not ranked.
Main sensor size
1/1.7"3rd party
No verified data
UltrawideDiffers, but not ranked.
12MP Ultra Wide, 13mm, f/2.4, 120° field of viewOfficial
12MP Ultra Wide, f/2.4, 120° field of viewOfficial
Front cameraDiffers, but not ranked.
12MP TrueDepth, f/1.9 aperture, autofocus with Focus PixelsOfficial
12MP TrueDepth, f/2.2 apertureOfficial
Video captureDiffers, but not ranked.
4K at 24, 25, 30 or 60 fps; HDR video recording with Dolby Vision up to 4K at 60 fpsOfficial
4K at 24, 25, 30 or 60 fps; HDR video recording with Dolby Vision up to 4K at 30 fpsOfficial

Battery

SpecificationApple iPhone 14Apple iPhone 12
Battery capacity
3279mAh3rd party
2815mAh3rd party

Marginal — most people won’t notice.

Claimed video playback

Marginal — most people won’t notice.

Fast chargingSame.
Wireless chargingSame.

Connectivity

SpecificationApple iPhone 14Apple iPhone 12
Wi-FiSame.
Wi-Fi 6 (802.11ax) with 2x2 MIMOOfficial
Wi-Fi 6 (802.11ax) with 2x2 MIMOOfficial
BluetoothDiffers, but not ranked.
USBSame.
Lightning connectorOfficial
Lightning connectorOfficial
NFCSame.
PositioningSame.
GPS, GLONASS, Galileo, QZSS and BeiDouOfficial
GPS, GLONASS, Galileo, QZSS and BeiDouOfficial

Benchmarks

SpecificationApple iPhone 14Apple iPhone 12
Geekbench 6 (CPU, multi-core)

Marginal — most people won’t notice.

DXOMARK camera scoreDiffers, but not ranked.

Misc

SpecificationApple iPhone 14Apple iPhone 12
ColoursDiffers, but not ranked.
Midnight, Purple, Starlight, (PRODUCT)RED, Blue, YellowOfficial
Black, White, (PRODUCT)RED, Green, Blue, PurpleOfficial
SAR (EU, head)Differs, but not ranked.
0.98W/kg3rd party
0.99W/kg3rd party
8 attributes neither phone has a sourced figure for

Refresh rate · Google Mobile Services · Telephoto · Battery per charge · Battery lifespan · AnTuTu benchmark · 3DMark Wild Life Extreme · Repairability (EU class). Rows appear as sources are cited — a gap in our data, not a statement about either phone.

Questions

Is the iPhone 14 better than the iPhone 12?

On the figures, the iPhone 14 is ahead wherever there is a gap you’d notice: storage (base), 128 GB against 64 GB (both Apple Support UK). The iPhone 12 wins no row by such a gap. That is a count of rows, not an overall score.

Which has the better battery?

The iPhone 14 is ahead, narrowly: claimed video playback, 20 h against 15 h (both Apple UK), a borderline gap most people would not notice. The iPhone 14 is ahead, narrowly: battery capacity, 3,279 mAh against 2,815 mAh (both GSMArena), a borderline gap most people would not notice.

Which is lighter?

The iPhone 12 is lighter on paper, but not by a gap you’d notice: weight, 162 g against 172 g (both Apple Support UK).

Which has the brighter screen?

Neither: both state 1,200 nits for peak brightness (Apple Support UK). The iPhone 14 is brighter, narrowly: typical brightness, 800 nits against 625 nits (both Apple Support UK), a borderline gap most people would not notice. Both state 1,200 nits for HDR peak brightness (Apple UK).

Which gets updates for longer?

Apple publishes no date for either; its record with retired iPhones points to 2029–2033 for the iPhone 14 and 2027–2031 for the iPhone 12, our estimate, not Apple’s. Sources: Apple’s record from endoflife.date and Apple security releases.

The pairs a buyer of either phone would also weigh. Any two phones in the catalogue can be compared from the chooser.