Galaxy S21+ vs Galaxy S25+: Size & Dimensions Compared
The Galaxy S21+ is the larger phone, measuring 3.1mm taller and 0.2mm narrower.
Visual Size Overlay
- •Height differs by 3.1mm — case won't fit
- •Thickness differs by 0.5mm — may affect fit
- •Camera bump size slightly different
Same screen size (6.7") with minimal width difference — should fit.
| Dimension | Galaxy S21+ | Galaxy S25+ | Difference |
|---|---|---|---|
| Height | 161.5mm | 158.4mm | Galaxy S25+ -3.1mm (shorter) |
| Width | 75.6mm | 75.8mm | Galaxy S25+ +0.2mm (wider) |
| Thickness | 7.8mm | 7.3mm | Galaxy S25+ -0.5mm (thinner) |
| Weight | 200g | 190g | Galaxy S25+ -10.0g (lighter) |
| Screen | 6.7" | 6.7" | Same |
Visual Size Comparison
Button & Port Layout
Which is bigger?
The Galaxy S21+ is the taller phone at 161.5mm (vs 158.4mm). It is also 10g 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 S21+ | Galaxy S25+ |
|---|---|---|
| Wireless Charging | 15W | 15W |
| Qi Version | Qi | Qi2 |
| MagSafe | No | No |
| Built-in Magnets | No | No |
| Magnet Ring | unknown | none built in |
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+ to Galaxy S25+?
Different sizes mean your old case probably won't fit. You'll need a new one.
Accessories for Galaxy S21+
Accessories for Galaxy S25+
Spigen
Spigen Liquid Air for Galaxy S25+
$15.99
Spigen
Spigen Ultra Hybrid for Galaxy S25+
$16.99
OtterBox
OtterBox Defender Series for Galaxy S25+
$64.95
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Frequently Asked Questions
Is Galaxy S21+ bigger than Galaxy S25+?
Yes, the Galaxy S21+ is 3.1mm taller and 0.2mm narrower. The Galaxy S21+ weighs 200g vs 190g.
Are Galaxy S21+ and Galaxy S25+ the same size?
No, the height differs by 3.1mm, width by 0.2mm, and thickness by 0.5mm.