No, your Galaxy S25 Ultra case won't fit the OnePlus Open
The Galaxy S25 Ultra (162.8×77.6mm) and OnePlus Open (153.4×73.3mm) differ too much for cases to be compatible.
Does a Galaxy S25 Ultra Case Fit OnePlus Open?
Last verified: March 2026
No, a Galaxy S25 Ultra case will not fit the OnePlus Open. The phones have different dimensions that make cases incompatible.
Your Galaxy S25 Ultra case will NOT fit the OnePlus Open. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Galaxy S25 Ultra | OnePlus Open | Diff |
|---|---|---|---|
| Height | 162.8mm | 153.4mm | Galaxy S25 Ultra +9.4mm |
| Width | 77.6mm | 73.3mm | Galaxy S25 Ultra +4.3mm |
| Thickness | 8.2mm | 11.7mm | OnePlus Open +3.5mm |
| Camera Layout | vertical-quad | circular-triple | Different |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •Old phone has S Pen slot — new phone does not
- •New phone has alert slider — old case has no cutout for it
Your Galaxy S25 Ultra case won't fit the OnePlus Open. Find the right case:
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Size Comparison
Wireless Charging & MagSafe
Only one phone supports wireless charging.
- The OnePlus Open does not support wireless charging. Only the Galaxy S25 Ultra can use a wireless charger.
Galaxy S25 Ultra
Qi2 only
15W max
OnePlus Open
No wireless
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 Galaxy S25 Ultra and OnePlus Open the same size?
Galaxy S25 Ultra measures 162.8×77.6×8.2mm while OnePlus Open measures 153.4×73.3×11.7mm. They are different sizes.
Can I use a Galaxy S25 Ultra screen protector on OnePlus Open?
Screen sizes differ (6.9" vs 6.31") — protector won't fit.
What's different between Galaxy S25 Ultra and OnePlus Open dimensions?
The height differs by 9.4mm, the width by 4.3mm, and thickness by 3.5mm. The camera module layout is also different.
Do I need a new case for OnePlus Open?
Yes, you'll need a new case. The OnePlus Open has different dimensions than the Galaxy S25 Ultra, so cases are not interchangeable.
Will Galaxy S25 Ultra accessories work with OnePlus Open?
Chargers and cables are compatible since both phones use the same usb-c port. Cases and screen protectors depend on exact dimensions — check our compatibility results above.
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