Galaxy S25 Ultra vs S24 Ultra: Size, Case Compatibility & What Changed
By WillItSnap Team · March 15, 2026
The Galaxy S25 Ultra brings a refined design compared to the S24 Ultra, with changes to the body dimensions, edge profile, and overall weight. If you're upgrading, the big question is: which accessories carry over?
We compared every measurement directly from our database — no guesswork. Here's exactly what changed and what it means for your cases, screen protectors, chargers, and car mounts.
Dimension Comparison
| Model | Height (mm) | Width (mm) | Thickness (mm) | Weight (g) | Camera Layout | Port |
|---|---|---|---|---|---|---|
| Samsung Galaxy S25 Ultra | 162.8 | 77.6 | 8.2 | 218 | vertical-quad | usb-c |
| Samsung Galaxy S24 Ultra | 162.3 | 79 | 8.6 | 232 | vertical-quad | usb-c |
Height
+0.5mm
Width
-1.4mm
Thickness
-0.4mm
Weight
-14g
What Changed
Width & Profile
The S25 Ultra measures 77.6mm wide vs the S24 Ultra's 79mm — a 1.4mm difference. Samsung also changed the edge type from flat to flat, giving the S25 Ultra a more angular feel in-hand.
Height
The S25 Ultra is 0.5mm taller than the S24 Ultra (162.8mm vs 162.3mm).
Thickness & Weight
At 8.2mm thick (vs 8.6mm), the S25 Ultra is 0.4mm thinner. It weighs 218g vs 232g — a 14g difference.
Camera Layout
S25 Ultra: vertical-quad camera layout vs S24 Ultra: vertical-quad. While the layout type is the same, the camera bump dimensions and lens positioning have changed.
Case Compatibility: S24 Ultra → S25 Ultra
Cases Are NOT Compatible
Compatibility score: 60/100
- Width difference too large — case won't fit
A Galaxy S24 Ultra case will NOT fit the Galaxy S25 Ultra. Key issues: Width difference too large — case won't fit. You'll need a new case designed for the Galaxy S25 Ultra.
What Accessories Carry Over?
Wireless Chargers
Both phones support wireless charging, so your existing wireless charger will work with the S25 Ultra.
| Feature | Galaxy S25 Ultra | Galaxy S24 Ultra |
|---|---|---|
| Wireless Charging | Yes | Yes |
| Max Wireless | 15W | 15W |
| MagSafe / Qi2 | Qi2 | Qi only |
Screen Protectors
❌ Not compatible. The S25 Ultra has a 6.9" flat screen while the S24 Ultra has a 6.8" flat screen.
Car Mounts
| Feature | Galaxy S25 Ultra | Galaxy S24 Ultra |
|---|---|---|
| Width | 77.6mm | 79mm |
| Width with Case | ~80.6mm | ~82mm |
| Size Category | standard | large |
| Fits Standard Mount | Yes | Yes |
| MagSafe Mount | With adapter | With adapter |
The Galaxy S25 Ultra at 77.6mm wide (about 80.6mm with a case) fits most standard car mounts without issue.
Chargers & Cables
Both the S25 Ultra and S24 Ultra use USB-C, so all your existing cables and chargers will work. Here are the charging specs side by side:
| Spec | Galaxy S25 Ultra | Galaxy S24 Ultra |
|---|---|---|
| Port Type | usb-c | usb-c |
| Max Wired Charging | 45W | 45W |
| Fast Charge Standard | USB-PD / Samsung Adaptive Fast Charging | USB-PD / Samsung Adaptive Fast Charging |
| Charger in Box | No | No |
Accessory Compatibility Summary
| Accessory | Carries Over? | Notes |
|---|---|---|
| Cases | No | Dimensions and camera bump changed |
| Screen Protectors | No | Edge type: flat → flat |
| USB-C Chargers | Yes | Both usb-c |
| Wireless Chargers | Yes | Both support wireless charging |
| Car Mounts | Depends | Magnetic mounts: yes. Clamp mounts: check width (80.6mm with case) |