Oppo A79 vs Galaxy S21 Ultra: Size & Dimensions Compared
The Oppo A79 and Galaxy S21 Ultra are nearly the same size, differing by just 0.5mm in height and 0.4mm in width.
Visual Size Overlay
Oppo A79Galaxy S21 Ultra
Height Δ
+0.5mm
Width Δ
+0.4mm
Thickness Δ
-0.9mm
Case CompatibilityWon't Fit
- •Body dimensions are nearly identical, but the camera cutout is incompatible (vertical-dual vs vertical-quad)
Screen ProtectorNot Compatible
Edge types differ (flat vs curved) — screen protector won't adhere properly.
| Dimension | Oppo A79 | Galaxy S21 Ultra | Difference |
|---|---|---|---|
| Height | 165.6mm | 165.1mm | Galaxy S21 Ultra -0.5mm (shorter) |
| Width | 76mm | 75.6mm | Galaxy S21 Ultra -0.4mm (narrower) |
| Thickness | 7.99mm | 8.9mm | Galaxy S21 Ultra +0.9mm (thicker) |
| Weight | 193g | 227g | Galaxy S21 Ultra +34.0g (heavier) |
| Screen | 6.72" | 6.8" | Galaxy S21 Ultra +0.1" (larger) |
Visual Size Comparison
HeightOppo A79 +0.5mm
Oppo A79
165.6mm
Galaxy S21 Ultra
165.1mm
WidthOppo A79 +0.4mm
Oppo A79
76mm
Galaxy S21 Ultra
75.6mm
ThicknessGalaxy S21 Ultra +0.9mm
Oppo A79
7.99mm
Galaxy S21 Ultra
8.9mm
Button & Port Layout
Which is bigger?
The Oppo A79 and Galaxy S21 Ultra are essentially the same size.
Wireless Charging & MagSafe Compatibility
Only one phone supports wireless charging.
- ⚠The Oppo A79 does not support wireless charging. Only the Galaxy S21 Ultra can use a wireless charger.
| Spec | Oppo A79 | Galaxy S21 Ultra |
|---|---|---|
| Wireless Charging | No | 15W |
| Qi Version | — | 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.
Accessories for Oppo A79
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Will a Oppo A79 case fit Galaxy S21 Ultra? →Will a Oppo A79 screen protector fit Galaxy S21 Ultra? →
Frequently Asked Questions
Is Oppo A79 bigger than Galaxy S21 Ultra?
Yes, the Oppo A79 is 0.5mm taller and 0.4mm wider. The Oppo A79 weighs 193g vs 227g.
Are Oppo A79 and Galaxy S21 Ultra the same size?
Very close — they differ by only 0.5mm in height and 0.4mm in width.