Samsung Galaxy S25 Slim vs Xiaomi 16 Ultra
Compare Samsung Galaxy S25 Slim vs Xiaomi 16 Ultra side by side: Qualcomm Snapdragon 8 Elite for Galaxy vs Qualcomm Snapdragon 8 Elite Gen 2, 50MP vs 50MP…
Samsung
Galaxy S25 Slim
$999
3categories won
Xiaomi
16 Ultra
$1,299
13categories won
5 categories tied · 21 scored in total · add a third phone
Which one wins?
Xiaomi 16 Ultra takes the overall win
The Xiaomi 16 Ultra proves superior overall against the Samsung Galaxy S25 Slim, outperforming on gaming and photography. In camera testing, the 16 Ultra leads with superior optics, while battery endurance leans towards the 16 Ultra. Choose the 16 Ultra if you want the highest performance ceiling, or opt for the Galaxy S25 Slim if its lower retail price better fit your budget.
16 Ultra takes battery honors offering 6,200 mAh alongside 120W charging.
16 Ultra provides greater sustained gaming output with its Qualcomm Snapdragon 8 Elite Gen 2 and 24GB RAM.
16 Ultra takes photography with 50MP optics and 3.2x optical telephoto capabilities.
Galaxy S25 Slim provides a sharper value proposition, coming in at $999 vs $1299.
Category verdicts are computed algorithmically from verified technical specifications and hardware benchmarks. Rows where neither figure is objectively better — screen size preference, operating system choice, aesthetic build materials — are displayed for direct reference without scoring bias.
Galaxy S25 Slim vs 16 Ultra: specifications compared
Display
| Specification | Galaxy S25 Slim | 16 Ultra |
|---|---|---|
| Screen size | 6.66" | 6.73" |
| Resolution | 1440 x 3120 | 1440 x 3200Winner |
| Pixel density | 516 ppi | 521 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3000 nits | 3600 nitsWinner |
Performance
| Specification | Galaxy S25 Slim | 16 Ultra |
|---|---|---|
| Chipset | Qualcomm Snapdragon 8 Elite for Galaxy | Qualcomm Snapdragon 8 Elite Gen 2 |
| Process node | 3 nm | 2 nmWinner |
| AnTuTu score | 2,400,000 | 3,200,000Winner |
| Geekbench multi | 8900 | 10800Winner |
| Maximum RAM | 16 GB | 24 GBWinner |
| Maximum storage | 512GB | 2TBWinner |
Camera
| Specification | Galaxy S25 Slim | 16 Ultra |
|---|---|---|
| Main sensor | 50 MP | 50 MP |
| Rear cameras | 2 | 4Winner |
| Optical zoom | — | 3.2x |
| Ultrawide | 12 MP | 50 MPWinner |
| Selfie camera | 16 MP | 32 MPWinner |
| Max video | 8K at 30fps / 4K at 120fps | 8K at 30fps / 4K at 120fps |
Battery and charging
| Specification | Galaxy S25 Slim | 16 Ultra |
|---|---|---|
| Capacity | 4,400 mAh | 6,200 mAhWinner |
| Wired charging | 45 W | 120 WWinner |
| Wireless charging | 15 W | 80 WWinner |
Design
| Specification | Galaxy S25 Slim | 16 Ultra |
|---|---|---|
| Weight | 168 gWinner | 226 g |
| Thickness | 6.6 mmWinner | 9.2 mm |
| Water resistance | IP68 | IP68 |
| Build | Grade 5 Titanium frame, Gorilla Glass Armor 2 front, matte glass back | Grade 5 Titanium frame, Ceramic Glass front and back |
Software and support
| Specification | Galaxy S25 Slim | 16 Ultra |
|---|---|---|
| Operating system | Android 15 | Android 17 |
| OS updates | 7 years | 7 years |
| Security updates | 7 years | 7 years |
Connectivity and value
| Specification | Galaxy S25 Slim | 16 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 (802.11be, tri-band 2.4/5/6GHz, 320MHz bandwidth) | Wi-Fi 7 (802.11be, tri-band 2.4/5/6GHz, 320MHz bandwidth) |
| Storage expansion | None | None |
| 3.5mm jack | No | No |
| Launch price | $999Winner | $1,299 |
Samsung Galaxy S25 Slim
Samsung takes on the ultra-slim era with the Galaxy S25 Slim, engineering a 6.6mm profile without sacrificing Snapdragon 8 Elite power, a 200MP camera, or Gorilla Armor anti-reflective glass.
- Display
- 6.66"
- Chipset
- Qualcomm Snapdragon 8 Elite for Galaxy
- Main camera
- 50MP
- Battery
- 4,400mAh
Xiaomi 16 Ultra
Equipped with a second-gen 1-inch LOFIC sensor with 15EV dynamic range, stepless physical f/1.6–f/4.0 aperture, a mammoth 200MP 1/1.4" periscope telephoto, 120W wired and 80W wireless charging, and 6,200 mAh capacity, the 16 Ultra is a DSLR in your pocket.
- Display
- 6.73"
- Chipset
- Qualcomm Snapdragon 8 Elite Gen 2
- Main camera
- 50MP
- Battery
- 6,200mAh