No, your iPhone XS Max case won't fit the iPhone 12
The iPhone XS Max (157.5×77.4mm) and iPhone 12 (146.7×71.5mm) differ too much for cases to be compatible.
Does a iPhone XS Max Case Fit iPhone 12?
Last verified: March 2026
No, a iPhone XS Max case will not fit the iPhone 12. The phones have different dimensions that make cases incompatible.
Your iPhone XS Max case will NOT fit the iPhone 12. Here's why:
- •Height differs by 10.8mm — case won't fit
- •Width differs by 5.9mm — case won't fit
- •Thickness differs by 0.3mm — may affect fit
- •Camera bump size differs significantly
- •Different edge profiles (rounded vs flat) — case shell shape won't match
- •Corner shape differs — case won't seat properly
| Spec | iPhone XS Max | iPhone 12 | Diff |
|---|---|---|---|
| Height | 157.5mm | 146.7mm | iPhone XS Max +10.8mm |
| Width | 77.4mm | 71.5mm | iPhone XS Max +5.9mm |
| Thickness | 7.7mm | 7.4mm | iPhone XS Max +0.3mm |
| Camera Layout | vertical-dual | vertical-dual | Same |
| Port | lightning | lightning | Same |
Your iPhone XS Max case won't fit the iPhone 12. Find the right case:
As an Amazon Associate, WillItSnap earns from qualifying purchases. This doesn't affect our compatibility data.
Get alerts when we add more phones
Size Comparison
Wireless Charging & MagSafe
Wireless chargers work with both phones, but magnetic snap varies.
- Your MagSafe charger will charge the iPhone XS Max via Qi, but it won't magnetically snap on.
- Only the iPhone 12 has built-in magnets for MagSafe accessories. The iPhone XS Max needs a magnetic case or ring adapter.
iPhone XS Max
Qi only
7.5W max
iPhone 12
MagSafe Gen 1
15W max
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.
Related Guides
Related Compatibility Checks
Frequently Asked Questions
Are iPhone XS Max and iPhone 12 the same size?
iPhone XS Max measures 157.5×77.4×7.7mm while iPhone 12 measures 146.7×71.5×7.4mm. They are different sizes.
Can I use a iPhone XS Max screen protector on iPhone 12?
Screen sizes differ (6.5" vs 6.1") — protector won't fit.
What's different between iPhone XS Max and iPhone 12 dimensions?
The height differs by 10.8mm, the width by 5.9mm, and thickness by 0.3mm.
Do I need a new case for iPhone 12?
Yes, you'll need a new case. The iPhone 12 has different dimensions than the iPhone XS Max, so cases are not interchangeable.
Will iPhone XS Max accessories work with iPhone 12?
Chargers and cables are compatible since both phones use the same lightning port. Both support wireless charging, so wireless chargers work with either phone. Cases and screen protectors depend on exact dimensions — check our compatibility results above.
Want to check another phone?
← Back to the compatibility checker