No, your Galaxy S20 Ultra case won't fit the Galaxy Z Fold 3
The Galaxy S20 Ultra (166.9×76mm) and Galaxy Z Fold 3 (158.2×67.1mm) differ too much for cases to be compatible.
Does a Galaxy S20 Ultra Case Fit Galaxy Z Fold 3?
Last verified: March 2026
No, a Galaxy S20 Ultra case will not fit the Galaxy Z Fold 3. The phones have different dimensions that make cases incompatible.
Your Galaxy S20 Ultra case will NOT fit the Galaxy Z Fold 3. Here's why:
- •Camera module layout is different — cutout won't align
| Spec | Galaxy S20 Ultra | Galaxy Z Fold 3 | Diff |
|---|---|---|---|
| Height | 166.9mm | 158.2mm | Galaxy S20 Ultra +8.7mm |
| Width | 76mm | 67.1mm | Galaxy S20 Ultra +8.9mm |
| Thickness | 8.8mm | 16mm | Galaxy Z Fold 3 +7.2mm |
| Camera Layout | rectangular-module | vertical-triple | Different |
| Port | usb-c | usb-c | Same |
Your Galaxy S20 Ultra case won't fit the Galaxy Z Fold 3. 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 S20 Ultra
Qi only
10W max
Galaxy Z Fold 3
Qi only
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 Galaxy S20 Ultra and Galaxy Z Fold 3 the same size?
Galaxy S20 Ultra measures 166.9×76×8.8mm while Galaxy Z Fold 3 measures 158.2×67.1×16mm. They are different sizes.
Can I use a Galaxy S20 Ultra screen protector on Galaxy Z Fold 3?
Edge types differ (curved vs rounded) — screen protector won't adhere properly.
What's different between Galaxy S20 Ultra and Galaxy Z Fold 3 dimensions?
The height differs by 8.7mm, the width by 8.9mm, and thickness by 7.2mm. The camera module layout is also different.
Do I need a new case for Galaxy Z Fold 3?
Yes, you'll need a new case. The Galaxy Z Fold 3 has different dimensions than the Galaxy S20 Ultra, so cases are not interchangeable.
Will Galaxy S20 Ultra accessories work with Galaxy Z Fold 3?
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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