Galaxy S21 Ultra vs Galaxy Z Fold6: Size & Dimensions Compared
The Galaxy S21 Ultra is the larger phone, measuring 11.6mm taller and 7.5mm wider.
Visual Size Overlay
- •Camera module layout is different — cutout won't align
Edge types differ (curved vs flat) — screen protector won't adhere properly.
| Dimension | Galaxy S21 Ultra | Galaxy Z Fold6 | Difference |
|---|---|---|---|
| Height | 165.1mm | 153.5mm | Galaxy Z Fold6 -11.6mm (shorter) |
| Width | 75.6mm | 68.1mm | Galaxy Z Fold6 -7.5mm (narrower) |
| Thickness | 8.9mm | 12.1mm | Galaxy Z Fold6 +3.2mm (thicker) |
| Weight | 227g | 239g | Galaxy Z Fold6 +12.0g (heavier) |
| Screen | 6.8" | 7.6" | Galaxy Z Fold6 +0.8" (larger) |
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 lighter.
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 S21 Ultra | Galaxy Z Fold6 |
|---|---|---|
| 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 S21 Ultra to Galaxy Z Fold6?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S21 Ultra
As an Amazon Associate, WillItSnap earns from qualifying purchases.
Frequently Asked Questions
Is Galaxy S21 Ultra bigger than Galaxy Z Fold6?
Yes, the Galaxy S21 Ultra is 11.6mm taller and 7.5mm wider. The Galaxy S21 Ultra weighs 227g vs 239g.
Are Galaxy S21 Ultra and Galaxy Z Fold6 the same size?
No, the height differs by 11.6mm, width by 7.5mm, and thickness by 3.2mm.