Short answer
Buy iPhone 17 if you want better cameras, longer battery life and a SIM tray. Buy iPhone Air if you want the thinnest, lightest iPhone and are happy with one camera and eSIM only.
These two models appeal to different people.
Comparison
| iPhone 17 | iPhone Air | |
|---|---|---|
| Screen | 6.3 in 120Hz | 6.5 in 120Hz |
| Chip | A19 | A19 Pro |
| Rear cameras | Two | One |
| Battery | Longer | Shorter |
| SIM | Depends on region | eSIM only |
| Design | Standard thickness | Ultra-thin |
Frequently asked questions
Which has better battery life?
iPhone 17.
Which has the better camera?
iPhone 17, with two rear cameras.