No, your Galaxy A23 case won't fit the Galaxy Note 20 Ultra
The Galaxy A23 (165.4×76.9mm) and Galaxy Note 20 Ultra (164.8×77.2mm) differ too much for cases to be compatible.
Does a Galaxy A23 Case Fit Galaxy Note 20 Ultra?
Last verified: March 2026
No, a Galaxy A23 case will not fit the Galaxy Note 20 Ultra. The phones have different dimensions that make cases incompatible.
Your Galaxy A23 case will NOT fit the Galaxy Note 20 Ultra. Here's why:
- •Body dimensions are nearly identical, but the camera cutout is incompatible (vertical-quad vs rectangular-module)
| Spec | Galaxy A23 | Galaxy Note 20 Ultra | Diff |
|---|---|---|---|
| Height | 165.4mm | 164.8mm | Galaxy A23 +0.6mm |
| Width | 76.9mm | 77.2mm | Galaxy Note 20 Ultra +0.3mm |
| Thickness | 8.4mm | 8.1mm | Galaxy A23 +0.3mm |
| Camera Layout | vertical-quad | rectangular-module | Different |
| Port | usb-c | usb-c | Same |
Button & Port Alignment
- •New phone has S Pen slot — old case has no opening for it
Your Galaxy A23 case won't fit the Galaxy Note 20 Ultra. Find the right case:
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Size Comparison
Wireless Charging & MagSafe
Only one phone supports wireless charging.
- The Galaxy A23 does not support wireless charging. Only the Galaxy Note 20 Ultra can use a wireless charger.
Galaxy A23
No wireless
Galaxy Note 20 Ultra
Qi only
10W max
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.
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Frequently Asked Questions
Are Galaxy A23 and Galaxy Note 20 Ultra the same size?
Galaxy A23 measures 165.4×76.9×8.4mm while Galaxy Note 20 Ultra measures 164.8×77.2×8.1mm. They are different sizes.
Can I use a Galaxy A23 screen protector on Galaxy Note 20 Ultra?
Edge types differ (flat vs curved) — screen protector won't adhere properly.
What's different between Galaxy A23 and Galaxy Note 20 Ultra dimensions?
The height differs by 0.6mm, the width by 0.3mm, and thickness by 0.3mm. The camera module layout is also different.
Do I need a new case for Galaxy Note 20 Ultra?
Yes, you'll need a new case. The Galaxy Note 20 Ultra has different dimensions than the Galaxy A23, so cases are not interchangeable.
Will Galaxy A23 accessories work with Galaxy Note 20 Ultra?
Chargers and cables are compatible since both phones use the same usb-c port. Cases and screen protectors depend on exact dimensions — check our compatibility results above.
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