iPhone 18 Pro vs iPhone 12 Pro

The iPhone 12 Pro is 1.35 millimetres0.05 inches thinner and 22 grams0.78 ounces lighter than the iPhone 18 Pro.

The iPhone 18 Pro on Amazon (paid link) delivers vastly better battery life and a smoother screen, but it costs significantly more than a renewed iPhone 12 Pro (paid link). Both still run the latest software, yet the older model is much cheaper and fits more comfortably in a pocket. If you need modern features and all-day endurance, upgrade; if not, save your cash.

Paid link.

Easier one-handed: iPhone 12 Pro

Pocket: iPhone 12 Pro

Weight difference: Noticeable

iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
iPhone 12 Pro
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)

Paid link.

TRUE SCALE · 1.4 PX/MM

Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.

iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
iPhone 12 Pro
from $999 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)

Paid link.

HeightWidthDepthWeight18 Pro150.0 millimetres5.91 inches71.9 millimetres2.83 inches8.75 millimetres0.34 inches211 grams7.44 ounces12 Pro146.7 millimetres, 3.3 millimetres less5.78 inches, 0.13 inches less71.5 millimetres, 0.4 millimetres less2.81 inches, 0.02 inches less7.40 millimetres, 1.35 millimetres less0.29 inches, 0.05 inches less189 grams, 22 grams less6.67 ounces, 0.78 ounces less

Height: 18 Pro 150.0 millimetres, 12 Pro 146.7 millimetres.Height: 18 Pro 5.91 inches, 12 Pro 5.78 inches.Width: 18 Pro 71.9 millimetres, 12 Pro 71.5 millimetres.Width: 18 Pro 2.83 inches, 12 Pro 2.81 inches.Depth: 18 Pro 8.75 millimetres, 12 Pro 7.40 millimetres.Depth: 18 Pro 0.34 inches, 12 Pro 0.29 inches.Weight: 18 Pro 211 grams, 12 Pro 189 grams.Weight: 18 Pro 7.44 ounces, 12 Pro 6.67 ounces.

Specifications

Specifications for iPhone 18 Pro, iPhone 12 Pro. Differences are given against iPhone 18 Pro.
Specification	18 Pro	12 Pro

Height	150.0 millimetres5.91 inches	146.7 millimetres, 3.3 millimetres less5.78 inches, 0.13 inches less
Width	71.9 millimetres2.83 inches	71.5 millimetres, 0.4 millimetres less2.81 inches, 0.02 inches less
Depth	8.75 millimetres0.34 inches	7.40 millimetres, 1.35 millimetres less0.29 inches, 0.05 inches less
Weight	211 grams7.44 ounces	189 grams, 22 grams less6.67 ounces, 0.78 ounces less
Volume	94.4 cubic centimetres5.76 cubic inches	77.6 cubic centimetres, 16.7 cubic centimetres less4.74 cubic inches, 1.02 cubic inches less
Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure.	89 percent	86 percent, 3 percent less

Display size — Screen size is always quoted in inches.	6.3 inches	6.1 inches, 0.2 inches less
Resolution	1206 × 2622	1170 × 2532
Pixel density	460 pixels per inch	460 pixels per inch, the same
Cutout	Dynamic Island	Notch

Rear main	48MP Fusion, variable aperture f/1.48-f/4.0	48MP
Rear ultra-wide	48MP Fusion f/2.2	—
Rear telephoto	48MP Fusion 100mm (4x optical, 8x optical-quality)	—
Front camera	18MP Center Stage f/1.9	12MP

Chip	A20 Pro	A14 Bionic
Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity.	36 hrs	17 hrs

Port	USB-C	Lightning
Wireless	5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem	5G · Wi-Fi 6 · Bluetooth 5.0
Water resistance	IP68 (6m for 30 min)	IP68 (6m for 30 min)

Storage	256 GB – 2 TB	128 – 512 GB
Launch price — Base configuration at launch, in US dollars.	1,199 dollars	999 dollars, 200 dollars less

Released	Sep 2026	Oct 2020
Status	Current	Legacy

Dimensions

The iPhone 12 Pro is 3.3 mm (0.13 in) shorter, 0.4 mm (0.02 in) narrower, 1.35 mm (0.05 in) thinner and 22 g (0.78 oz) lighter than the iPhone 18 Pro. The iPhone 18 Pro measures 150.0 × 71.9 × 8.75 mm (5.91 × 2.83 × 0.34 in) and weighs 211 g (7.44 oz). The iPhone 12 Pro measures 146.7 × 71.5 × 7.40 mm (5.78 × 2.81 × 0.29 in) and weighs 189 g (6.67 oz).

Questions about these phones

How much taller is the iPhone 18 Pro than the iPhone 12 Pro?

The iPhone 18 Pro is 3.3 mm taller and 0.4 mm wider than the iPhone 12 Pro.

How much heavier is the iPhone 18 Pro compared to the iPhone 12 Pro?

The iPhone 18 Pro weighs 22 grams more than the iPhone 12 Pro.

Does the iPhone 18 Pro have a larger screen than the iPhone 12 Pro?

The iPhone 18 Pro has a 6.3 inch screen while the iPhone 12 Pro has a 6.1 inch screen.

Which phone is easier to hold and use one-handed?

The iPhone 12 Pro is easier to use one-handed than the iPhone 18 Pro.

Which phone fits better in a jeans pocket?

The iPhone 12 Pro is more pocketable than the iPhone 18 Pro.

Is it worth upgrading from the iPhone 12 Pro to the iPhone 18 Pro for size only?

Whether the upgrade is worth it depends on your priorities since the size difference is small.

iPhone 18 Pro vs iPhone 12 Pro

Quick answer

Specifications

Dimensions

Also compared with iPhone 18 Pro

Questions about these phones