No, your Galaxy Z Fold 4 case won't fit the Galaxy S20 Ultra
The Galaxy Z Fold 4 (155.1×67.1mm) and Galaxy S20 Ultra (166.9×76mm) differ too much for cases to be compatible.
Does a Galaxy Z Fold 4 Case Fit Galaxy S20 Ultra?
Last verified: March 2026
No, a Galaxy Z Fold 4 case will not fit the Galaxy S20 Ultra. The phones have different dimensions that make cases incompatible.
Your Galaxy Z Fold 4 case will NOT fit the Galaxy S20 Ultra. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Galaxy Z Fold 4 | Galaxy S20 Ultra | Diff |
|---|---|---|---|
| Height | 155.1mm | 166.9mm | Galaxy S20 Ultra +11.8mm |
| Width | 67.1mm | 76mm | Galaxy S20 Ultra +8.9mm |
| Thickness | 15.8mm | 8.8mm | Galaxy Z Fold 4 +7.0mm |
| Camera Layout | vertical-triple | rectangular-module | Different |
| Port | usb-c | usb-c | Same |
Your Galaxy Z Fold 4 case won't fit the Galaxy S20 Ultra. Find the right case:
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Size Comparison
Wireless Charging & MagSafe
Wireless chargers work with both phones, but magnetic snap varies.
- Both devices support wireless charging. Standard Qi/Qi2 chargers work with either phone.
Galaxy Z Fold 4
Qi only
15W max
Galaxy S20 Ultra
Qi only
10W 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 Galaxy Z Fold 4 and Galaxy S20 Ultra the same size?
Galaxy Z Fold 4 measures 155.1×67.1×15.8mm while Galaxy S20 Ultra measures 166.9×76×8.8mm. They are different sizes.
Can I use a Galaxy Z Fold 4 screen protector on Galaxy S20 Ultra?
Edge types differ (rounded vs curved) — screen protector won't adhere properly.
What's different between Galaxy Z Fold 4 and Galaxy S20 Ultra dimensions?
The height differs by 11.8mm, the width by 8.9mm, and thickness by 7.0mm. The camera module layout is also different.
Do I need a new case for Galaxy S20 Ultra?
Yes, you'll need a new case. The Galaxy S20 Ultra has different dimensions than the Galaxy Z Fold 4, so cases are not interchangeable.
Will Galaxy Z Fold 4 accessories work with Galaxy S20 Ultra?
Chargers and cables are compatible since both phones use the same usb-c 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.
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