iPhone 15 Plus vs iPhone 18 Pro
Quick answer
The iPhone 18 Pro is 5.9 millimetres0.23 inches narrower and 10.9 millimetres0.43 inches shorter than the iPhone 15 Plus.
The iPhone 18 Pro on Amazon (paid link) costs more upfront, but the extra stamina and premium feel make it worth it for most. The 15 Plus (paid link) remains a capable phone, yet its shorter endurance is the compromise you feel most every day. Pick the 18 Pro to stop reaching for a charger, or the renewed 15 Plus for value. If you'd like a newer big-screen value pick, the iPhone 16 Plus (paid link) is worth a look.
Paid link.
Easier one-handed: iPhone 18 Pro
Pocket: iPhone 18 Pro
Weight difference: Not noticeable
iPhone 15 Plus
from $899 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
TRUE SCALE · 1.3 PX/MM
TRUE SCALE · 2.1 PX/MM
Hand: US Army ANSUR II, 2012 (sex-balanced median). Pockets: The Pudding, 2018. Card: ISO/IEC 7810 ID-1.
iPhone 15 Plus: 160.9 by 77.8 by 7.8 millimetres, 201 grams. iPhone 18 Pro: 150 by 71.9 by 8.75 millimetres, 211 grams.
15 Plus, 18 Pro shown at 2.1 pixels per millimetre.
iPhone 15 Plus
from $899 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)
Paid link.
Height: 15 Plus 160.9 millimetres, 18 Pro 150.0 millimetres.Height: 15 Plus 6.33 inches, 18 Pro 5.91 inches.Width: 15 Plus 77.8 millimetres, 18 Pro 71.9 millimetres.Width: 15 Plus 3.06 inches, 18 Pro 2.83 inches.Depth: 15 Plus 7.80 millimetres, 18 Pro 8.75 millimetres.Depth: 15 Plus 0.31 inches, 18 Pro 0.34 inches.Weight: 15 Plus 201 grams, 18 Pro 211 grams.Weight: 15 Plus 7.09 ounces, 18 Pro 7.44 ounces.
Specifications
| Specification | 15 Plus | 18 Pro |
|---|---|---|
| Height | 160.9 millimetres6.33 inches | 150.0 millimetres, 10.9 millimetres less5.91 inches, 0.43 inches less |
| Width | 77.8 millimetres3.06 inches | 71.9 millimetres, 5.9 millimetres less2.83 inches, 0.23 inches less |
| Depth | 7.80 millimetres0.31 inches | 8.75 millimetres, 0.95 millimetres more0.34 inches, 0.04 inches more |
| Weight | 201 grams7.09 ounces | 211 grams, 10 grams more7.44 ounces, 0.35 ounces more |
| Volume | 97.6 cubic centimetres5.96 cubic inches | 94.4 cubic centimetres, 3.3 cubic centimetres less5.76 cubic inches, 0.20 cubic inches less |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 88 percent | 89 percent, 2 percent more |
| Display size — Screen size is always quoted in inches. | 6.7 inches | 6.3 inches, 0.4 inches less |
| Resolution | 1290 × 2796 | 1206 × 2622 |
| Pixel density | 460 pixels per inch | 460 pixels per inch, the same |
| Cutout | Dynamic Island | Dynamic Island |
| Rear main | 48MP | 48MP Fusion, variable aperture f/1.48-f/4.0 |
| Rear ultra-wide | — | 48MP Fusion f/2.2 |
| Rear telephoto | — | 48MP Fusion 100mm (4x optical, 8x optical-quality) |
| Front camera | 12MP | 18MP Center Stage f/1.9 |
| Chip | A16 Bionic | A20 Pro |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 26 hrs | 36 hrs |
| Port | USB-C | USB-C |
| Wireless | 5G · Wi-Fi · Bluetooth | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem |
| Water resistance | IP68 (6m for 30 min) | IP68 (6m for 30 min) |
| Storage | 128 – 512 GB | 256 GB – 2 TB |
| Launch price — Base configuration at launch, in US dollars. | 899 dollars | 1,199 dollars, 300 dollars more |
| Released | Sep 2023 | Sep 2026 |
| Status | Discontinued | Current |
Dimensions
The iPhone 18 Pro is 10.9 mm (0.43 in) shorter, 5.9 mm (0.23 in) narrower, 0.95 mm (0.04 in) thicker and 10 g (0.35 oz) heavier than the iPhone 15 Plus. The iPhone 15 Plus measures 160.9 × 77.8 × 7.80 mm (6.33 × 3.06 × 0.31 in) and weighs 201 g (7.09 oz). 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).
Also compared with iPhone 15 Plus
- iPhone 15 Plus vs iPhone 16 Plus
- iPhone 15 Plus vs iPhone 14 Plus
- iPhone 15 Plus vs iPhone 15 Pro Max
- iPhone 15 Plus vs iPhone 15 Pro
- iPhone 15 Plus vs iPhone 15
- iPhone 15 Plus vs iPhone 16
- iPhone 15 Plus vs iPhone 16e
- iPhone 15 Plus vs iPhone 17 Air
- iPhone 15 Plus vs iPhone 17
- iPhone 15 Plus vs iPhone 17e
- iPhone 15 Plus vs iPhone Duo
- iPhone 15 Plus vs iPhone 18 Pro Max
Questions about these phones
How much smaller is the iPhone 18 Pro than the iPhone 15 Plus?
The iPhone 18 Pro is 10.9 mm shorter and 5.9 mm narrower than the iPhone 15 Plus. It is 0.95 mm thicker than the iPhone 15 Plus.
What is the screen size difference between the iPhone 15 Plus and iPhone 18 Pro?
The iPhone 15 Plus has a 6.7 inch display while the iPhone 18 Pro has a 6.3 inch display. The iPhone 18 Pro screen is 0.4 inches smaller.
Which phone is easier to use with one hand?
The iPhone 18 Pro is easier to use with one hand because it is narrower and shorter. The iPhone 15 Plus is larger and less suited for small hands.
Do these phones fit in a typical men's jeans pocket?
Both phones fit in a typical men's jeans pocket. The iPhone 18 Pro is more pocketable than the iPhone 15 Plus.
How does the weight compare between the iPhone 15 Plus and iPhone 18 Pro?
The iPhone 18 Pro weighs 10 grams more than the iPhone 15 Plus. This weight difference is generally not noticeable in daily use.
Is it worth upgrading from the iPhone 15 Plus to the iPhone 18 Pro for size?
Upgrade if you want a more pocketable device with better one-handed use. Keep the iPhone 15 Plus if you prefer the larger screen.