iPhone SE (3rd gen) vs iPhone 17: Size & Dimensions Compared
The iPhone 17 is the larger phone, measuring 11.2mm shorter and 4.2mm narrower.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Edge types differ (rounded vs curved) — screen protector won't adhere properly.
| Dimension | iPhone SE (3rd gen) | iPhone 17 | Difference |
|---|---|---|---|
| Height | 138.4mm | 149.6mm | iPhone 17 +11.2mm (taller) |
| Width | 67.3mm | 71.5mm | iPhone 17 +4.2mm (wider) |
| Thickness | 7.3mm | 7.95mm | iPhone 17 +0.7mm (thicker) |
| Weight | 144g | 177g | iPhone 17 +33.0g (heavier) |
| Screen | 4.7" | 6.3" | iPhone 17 +1.6" (larger) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The iPhone 17 is the taller phone at 149.6mm (vs 138.4mm). It is also 33g heavier.
Wireless Charging & MagSafe Compatibility
Wireless chargers work with both phones, but magnetic snap varies.
- ⚠Your MagSafe charger will charge the iPhone SE (3rd gen) via Qi, but it won't magnetically snap on.
- ✓Only the iPhone 17 has built-in magnets for MagSafe accessories. The iPhone SE (3rd gen) needs a magnetic case or ring adapter.
| Spec | iPhone SE (3rd gen) | iPhone 17 |
|---|---|---|
| Wireless Charging | 7.5W | 25W |
| Qi Version | Qi | Qi2 |
| MagSafe | No | Gen 2 |
| Built-in Magnets | No | Yes |
| Magnet Ring | unknown | closed circle |
MagSafe cases are NOT cross-compatible between these devices — the case body is shaped to each phone, even though the internal magnet ring may be the same.
Upgrading from iPhone SE (3rd gen) to iPhone 17?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for iPhone SE (3rd gen)
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Frequently Asked Questions
Is iPhone SE (3rd gen) bigger than iPhone 17?
No, the iPhone 17 is 11.2mm taller. The iPhone SE (3rd gen) weighs 144g vs 177g.
Are iPhone SE (3rd gen) and iPhone 17 the same size?
No, the height differs by 11.2mm, width by 4.2mm, and thickness by 0.7mm.