No, your iPhone 12 Pro Max case won't fit the iPhone 15 Plus
The iPhone 12 Pro Max (160.8×78.1mm) and iPhone 15 Plus (160.9×77.8mm) differ too much for cases to be compatible.
Does a iPhone 12 Pro Max Case Fit iPhone 15 Plus?
Last verified: March 2026
No, a iPhone 12 Pro Max case will not fit the iPhone 15 Plus. The phones have different dimensions that make cases incompatible.
Your iPhone 12 Pro Max case will NOT fit the iPhone 15 Plus. Here's why:
- •Body dimensions are nearly identical, but the camera cutout is incompatible (square-triple vs diagonal-dual)
| Spec | iPhone 12 Pro Max | iPhone 15 Plus | Diff |
|---|---|---|---|
| Height | 160.8mm | 160.9mm | iPhone 15 Plus +0.1mm |
| Width | 78.1mm | 77.8mm | iPhone 12 Pro Max +0.3mm |
| Thickness | 7.4mm | 7.8mm | iPhone 15 Plus +0.4mm |
| Camera Layout | square-triple | diagonal-dual | Different |
| Port | lightning | usb-c | Different |
Since your iPhone 12 Pro Max case won't work with the iPhone 15 Plus, here are the highest-rated cases that will:
OtterBox
OtterBox Commuter Series for iPhone 15 Plus
$39.95
OtterBox
OtterBox Defender Series for iPhone 15 Plus
$64.95
ESR
ESR Classic Series MagSafe for iPhone 15 Plus
$15.99
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Size Comparison
Wireless Charging & MagSafe
Wireless chargers and magnetic accessories work with both phones.
- Your MagSafe charger will work with both devices.
- Both devices have built-in magnets — MagSafe wallets, car mounts, and battery packs will snap onto either phone.
iPhone 12 Pro Max
MagSafe Gen 1
15W max
iPhone 15 Plus
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.
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Frequently Asked Questions
Are iPhone 12 Pro Max and iPhone 15 Plus the same size?
iPhone 12 Pro Max measures 160.8×78.1×7.4mm while iPhone 15 Plus measures 160.9×77.8×7.8mm. They are different sizes.
Can I use a iPhone 12 Pro Max screen protector on iPhone 15 Plus?
Edge types differ (flat vs curved) — screen protector won't adhere properly.
What's different between iPhone 12 Pro Max and iPhone 15 Plus dimensions?
The height differs by 0.1mm, the width by 0.3mm, and thickness by 0.4mm. The camera module layout is also different. They use different charging ports.
Do I need a new case for iPhone 15 Plus?
Yes, you'll need a new case. The iPhone 15 Plus has different dimensions than the iPhone 12 Pro Max, so cases are not interchangeable.
Will iPhone 12 Pro Max accessories work with iPhone 15 Plus?
Chargers and cables are compatible since both phones use different ports (lightning vs usb-c). Both support wireless charging, so wireless chargers work with either phone. Cases and screen protectors depend on exact dimensions — check our compatibility results above.
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