Galaxy Z Fold6 vs Galaxy S21 Ultra: Size & Dimensions Compared
The Galaxy S21 Ultra is the larger phone, measuring 11.6mm shorter and 7.5mm narrower.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Edge types differ (flat vs curved) — screen protector won't adhere properly.
| Dimension | Galaxy Z Fold6 | Galaxy S21 Ultra | Difference |
|---|---|---|---|
| Height | 153.5mm | 165.1mm | Galaxy S21 Ultra +11.6mm (taller) |
| Width | 68.1mm | 75.6mm | Galaxy S21 Ultra +7.5mm (wider) |
| Thickness | 12.1mm | 8.9mm | Galaxy S21 Ultra -3.2mm (thinner) |
| Weight | 239g | 227g | Galaxy S21 Ultra -12.0g (lighter) |
| Screen | 7.6" | 6.8" | Galaxy S21 Ultra -0.8" (smaller) |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The Galaxy S21 Ultra is the taller phone at 165.1mm (vs 153.5mm). It but is 12g heavier.
Wireless Charging & MagSafe Compatibility
Wireless chargers work with both phones, but magnetic snap varies.
- ✓Both devices support wireless charging. Standard Qi/Qi2 chargers work with either phone.
| Spec | Galaxy Z Fold6 | Galaxy S21 Ultra |
|---|---|---|
| Wireless Charging | 15W | 15W |
| Qi Version | Qi | Qi |
| MagSafe | No | No |
| Built-in Magnets | No | No |
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.
Upgrading from Galaxy Z Fold6 to Galaxy S21 Ultra?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy Z Fold6
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Frequently Asked Questions
Is Galaxy Z Fold6 bigger than Galaxy S21 Ultra?
No, the Galaxy S21 Ultra is 11.6mm taller. The Galaxy Z Fold6 weighs 239g vs 227g.
Are Galaxy Z Fold6 and Galaxy S21 Ultra the same size?
No, the height differs by 11.6mm, width by 7.5mm, and thickness by 3.2mm.