Short answer
iPhone 15 and 15 Plus use the A16 Bionic. iPhone 15 Pro and Pro Max use the A17 Pro, have a titanium frame, an Action Button and support Apple Intelligence.
iPhone 15 is where USB-C arrived, and the Pro models made a big jump.
Side by side
| 15 | 15 Plus | 15 Pro | 15 Pro Max | |
|---|---|---|---|---|
| Screen | 6.1 in | 6.7 in | 6.1 in | 6.7 in |
| Chip | A16 Bionic | A16 Bionic | A17 Pro | A17 Pro |
| Frame | Aluminium | Aluminium | Titanium | Titanium |
| Display | 60Hz | 60Hz | Up to 120Hz | Up to 120Hz |
| Zoom | 2x crop | 2x crop | 3x telephoto | 5x telephoto |
| Key extras | USB-C, Dynamic Island | USB-C, bigger battery | Action Button, faster USB-C, Apple Intelligence | Longest zoom, biggest battery |
Notes
- All four models have USB-C and the Dynamic Island.
- USB-C on the Pro models supports much faster data transfer than on iPhone 15 and 15 Plus.
- Only the Pro models support Apple Intelligence.
Which to choose
- Value: iPhone 15.
- Big screen: iPhone 15 Plus.
- Best features: iPhone 15 Pro.
- Best zoom: iPhone 15 Pro Max.
Frequently asked questions
Does iPhone 15 Pro have an Action Button?
Yes, it replaces the mute switch.
Is titanium stronger?
It is lighter than stainless steel and durable, though it can still scratch.