iPhone 16 vs iPhone 15: Size Comparison
Last updated
The iPhone 16 and 15 have the same external dimensions and the same 6.1" advertised display. Apple still moved the camera module and buttons, so a 15 case is not a safe reuse. Size should not decide this upgrade.
Dimensions from Apple.com official specifications
The short answer
iPhone 16 vs 15 (standard): Same height, same width, same thickness. 1g lighter. Both are listed at 6.1". The body is identical; camera-bump and button cutouts can still differ.
In the hand: Height, width, and thickness are unchanged, so pocket fit and one-handed reach stay the same. The 1g difference is not something you will feel.
Case fit is still not guaranteed: Height, width, and thickness match, but Apple moved the camera module and buttons. Confirm cutouts before reusing a 15 case.
Full dimensions — iPhone 16 vs 15
| Dimension | iPhone 16 | iPhone 15 | Difference |
|---|---|---|---|
| Height | 147.6mm | 147.6mm | Unchanged |
| Width | 71.6mm | 71.6mm | Unchanged |
| Thickness | 7.80mm | 7.80mm | Unchanged |
| Weight | 170g | 171g | 1g lighter |
| Screen size | 6.1" | 6.1" | Unchanged |
| Display type | OLED | OLED | Same |
| Notch type | Dynamic Island | Dynamic Island | Same |
| Released | September 2024 | September 2023 | 1 year newer |
What the numbers actually mean
Same 6.1" display, same body
Apple lists both the iPhone 16 and iPhone 15 at 6.1 inches. Height, width, and thickness are identical, so pocket fit and one-handed reach do not change. The upgrade decision is hardware inside the same shell, not a larger phone.
Case compatibility: your 15 cases won't fit
Despite identical external dimensions, Apple changed the camera module and button positions between generations. iPhone 15 cases won't align properly with the 16's cutouts. Budget for new cases when you upgrade.
Will you feel the difference in your hand?
No. Height, width, and thickness are identical. The 1g weight difference is imperceptible. Pocket fit, one-handed use, and hand comfort are the same. Confirm camera-cutout fit before reusing a 15 case.
This page covers size & dimensions
Want the full upgrade verdict?
The 16 and 15 are the same size — so whether to upgrade comes down to the A18 chip, Camera Control, and other internals, not millimeters. Our complete comparison scores every category and says who should buy which.
iPhone 15 vs 16: full comparison →