Galaxy S25+ vs Galaxy S21+: Size & Dimensions Compared
The Galaxy S21+ is the larger phone, measuring 3.1mm shorter and 0.2mm wider.
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 S25+ | Galaxy S21+ | Difference |
|---|---|---|---|
| Height | 158.4mm | 161.5mm | Galaxy S21+ +3.1mm (taller) |
| Width | 75.8mm | 75.6mm | Galaxy S21+ -0.2mm (narrower) |
| Thickness | 7.3mm | 7.8mm | Galaxy S21+ +0.5mm (thicker) |
| Weight | 190g | 200g | Galaxy S21+ +10.0g (heavier) |
| 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 S25+ | Galaxy S21+ |
|---|---|---|
| Wireless Charging | 15W | 15W |
| Qi Version | Qi2 | Qi |
| MagSafe | No | No |
| Built-in Magnets | No | No |
| Magnet Ring | none built in | unknown |
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 S25+ to Galaxy S21+?
Different sizes mean your old case probably won't fit. You'll need a new one.
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 S25+ bigger than Galaxy S21+?
No, the Galaxy S21+ is 3.1mm taller. The Galaxy S25+ weighs 190g vs 200g.
Are Galaxy S25+ and Galaxy S21+ the same size?
No, the height differs by 3.1mm, width by 0.2mm, and thickness by 0.5mm.