iPhone 18 Pro vs iPhone 15 Plus
Quick answer
The iPhone 15 Plus is 5.9 millimetres0.23 inches wider and 10.9 millimetres0.43 inches taller than the iPhone 18 Pro.
The iPhone 18 Pro on Amazon (paid link) is Apple's fresh release, while the iPhone 15 Plus (paid link) is already discontinued and sold only as renewed stock. Both keep getting the latest iOS, yet the Pro brings a chip that is several generations ahead and battery that simply lasts longer. If you want a phone that is shorter and narrower, the Pro is the pick.
Paid link.
Easier one-handed: iPhone 18 Pro
Pocket: iPhone 18 Pro
Weight difference: Not noticeable
iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone 15 Plus
from $899 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (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 18 Pro: 150 by 71.9 by 8.75 millimetres, 211 grams. iPhone 15 Plus: 160.9 by 77.8 by 7.8 millimetres, 201 grams.
18 Pro, 15 Plus shown at 2.1 pixels per millimetre.
iPhone 18 Pro
from $1,199 at launch.
Launch price, not a live Amazon price.
Check price on Amazon (paid link)iPhone 15 Plus
from $899 at launch.
Launch price, not a live Amazon price.
Check price on Amazon Renewed (paid link)
Paid link.
Height: 18 Pro 150.0 millimetres, 15 Plus 160.9 millimetres.Height: 18 Pro 5.91 inches, 15 Plus 6.33 inches.Width: 18 Pro 71.9 millimetres, 15 Plus 77.8 millimetres.Width: 18 Pro 2.83 inches, 15 Plus 3.06 inches.Depth: 18 Pro 8.75 millimetres, 15 Plus 7.80 millimetres.Depth: 18 Pro 0.34 inches, 15 Plus 0.31 inches.Weight: 18 Pro 211 grams, 15 Plus 201 grams.Weight: 18 Pro 7.44 ounces, 15 Plus 7.09 ounces.
Specifications
| Specification | 18 Pro | 15 Plus |
|---|---|---|
| Height | 150.0 millimetres5.91 inches | 160.9 millimetres, 10.9 millimetres more6.33 inches, 0.43 inches more |
| Width | 71.9 millimetres2.83 inches | 77.8 millimetres, 5.9 millimetres more3.06 inches, 0.23 inches more |
| Depth | 8.75 millimetres0.34 inches | 7.80 millimetres, 0.95 millimetres less0.31 inches, 0.04 inches less |
| Weight | 211 grams7.44 ounces | 201 grams, 10 grams less7.09 ounces, 0.35 ounces less |
| Volume | 94.4 cubic centimetres5.76 cubic inches | 97.6 cubic centimetres, 3.3 cubic centimetres more5.96 cubic inches, 0.20 cubic inches more |
| Screen-to-body — Active display area over body area. Our own estimate, not an Apple figure. | 89 percent | 88 percent, 2 percent less |
| Display size — Screen size is always quoted in inches. | 6.3 inches | 6.7 inches, 0.4 inches more |
| Resolution | 1206 × 2622 | 1290 × 2796 |
| Pixel density | 460 pixels per inch | 460 pixels per inch, the same |
| Cutout | Dynamic Island | Dynamic Island |
| 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 | A16 Bionic |
| Video playback — Apple's rated hours of video playback. Apple does not publish battery capacity. | 36 hrs | 26 hrs |
| Port | USB-C | USB-C |
| Wireless | 5G · Wi-Fi 7 · Bluetooth 6 · Apple C2 modem | 5G · Wi-Fi · Bluetooth |
| 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 | 899 dollars, 300 dollars less |
| Released | Sep 2026 | Sep 2023 |
| Status | Current | Discontinued |
Dimensions
The iPhone 15 Plus is 10.9 mm (0.43 in) taller, 5.9 mm (0.23 in) wider, 0.95 mm (0.04 in) thinner and 10 g (0.35 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 15 Plus measures 160.9 × 77.8 × 7.80 mm (6.33 × 3.06 × 0.31 in) and weighs 201 g (7.09 oz).
Also compared with iPhone 18 Pro
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- iPhone 18 Pro vs iPhone 17 Air
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- iPhone 18 Pro vs iPhone 17e
- iPhone 18 Pro vs iPhone 16 Plus
- iPhone 18 Pro vs iPhone 16
- iPhone 18 Pro vs iPhone 16e
- iPhone 18 Pro vs iPhone 17 Pro Max
- iPhone 18 Pro vs iPhone 16 Pro Max
Questions about these phones
How much taller is the iPhone 15 Plus compared to the iPhone 18 Pro?
The iPhone 15 Plus is 10.9 mm taller than the iPhone 18 Pro. It also measures 5.9 mm wider across the front.
Which phone has a larger screen between the iPhone 18 Pro and iPhone 15 Plus?
The iPhone 15 Plus has a 6.7 inch display, which is 0.4 inch larger than the iPhone 18 Pro. Both phones share the same pixel density of 460 ppi.
Is the iPhone 18 Pro easier to use one-handed than the iPhone 15 Plus?
Yes, the iPhone 18 Pro is easier to use one-handed than the iPhone 15 Plus. Its narrower width and shorter height make it better for small hands.
Is the iPhone 18 Pro more pocketable than the iPhone 15 Plus?
The iPhone 18 Pro is more pocketable than the iPhone 15 Plus. Both fit in a typical men's jeans pocket, but the 18 Pro is smaller.
Is the weight difference between the iPhone 18 Pro and iPhone 15 Plus noticeable?
The iPhone 15 Plus is 10 grams lighter than the iPhone 18 Pro. This weight difference is not noticeable in daily use.
Is upgrading from the iPhone 15 Plus to the iPhone 18 Pro worth it for size?
The iPhone 18 Pro is smaller, easier to use one-handed, and more pocketable than the iPhone 15 Plus. Whether this upgrade is worth it depends on your priorities.