Samsung Galaxy S25 Ultra vs Xiaomi Mi Mix Alpha
The Samsung Galaxy S25 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mi Mix Alpha (2019) runs on the Qualcomm Snapdragon 855+. By overall MobileRank rating, the Samsung Galaxy S25 Ultra leads — 80/100 vs 52/100 (a 28-point difference). Key differences: the Samsung Galaxy S25 Ultra has the bigger battery (5000 mAh vs 4050); the main camera is 200 MP vs 108 MP; the Samsung Galaxy S25 Ultra is faster in AnTuTu (3,128,552 vs 859,084); the Samsung Galaxy S25 Ultra has NFC for contactless payments, the Xiaomi Mi Mix Alpha doesn't; the Samsung Galaxy S25 Ultra is noticeably lighter (218g vs 241g).
Profile comparison
Category scores
Samsung Galaxy S25 Ultra
Xiaomi Mi Mix Alpha
What makes Samsung Galaxy S25 Ultra better?
- Higher AnTuTu: 3128552 vs 859084
- Better Geekbench Single: 3100 vs 1031
- Better Geekbench Multi: 9760 vs 2864
- Bigger battery: 5000 vs 4050 mAh
- Faster charging: 45W vs 40W
- Better main camera: 200MP vs 108MP
- Lighter: 218g vs 241g
- Higher performance (92/100 vs 55/100)
- Better camera (81/100 vs 56/100)
- Longer battery life (56/100 vs 27/100)
- Better display (88/100 vs 80/100)
- Better portability (46/100 vs 20/100)
What makes Xiaomi Mi Mix Alpha better?
- Overall rating 52/100
Comparison verdict
Comparing the Samsung Galaxy S25 Ultra vs the Xiaomi Mi Mix Alpha, the Samsung Galaxy S25 Ultra scores 28 points higher (80/100 vs 52/100). In the "performance" category, the Samsung Galaxy S25 Ultra leads (92/100 vs 55/100). In the "camera" category, the Samsung Galaxy S25 Ultra leads (81/100 vs 56/100). In the "battery" category, the Samsung Galaxy S25 Ultra leads (56/100 vs 27/100). In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (92/100 vs 55/100). In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 80/100). In the "camera" category, the Samsung Galaxy S25 Ultra notably outperforms the Xiaomi Mi Mix Alpha (81/100 vs 56/100). In the "battery" category, the Samsung Galaxy S25 Ultra notably outperforms the Xiaomi Mi Mix Alpha (56/100 vs 27/100). In the "portability" category, the Samsung Galaxy S25 Ultra notably outperforms the Xiaomi Mi Mix Alpha (46/100 vs 20/100).
Specs comparison
| Specification | Samsung Galaxy S25 Ultra | Xiaomi Mi Mix Alpha | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855+ | |
| AnTuTu | 3128552 | 859084 | |
| Geekbench Single | 3100 | 1031 | |
| Geekbench Multi | 9760 | 2864 | |
| Display | 6.9" Dynamic AMOLED 2X | 7.9" Flexible Super AMOLED | |
| Resolution | 3120x1440 | 2088x2250 | |
| Refresh rate | 120 Hz | — | |
| Battery | 5000 mAh | 4050 mAh | |
| Charging | 45W | 40W | |
| Wireless charging | 15W | 0W | |
| DXOMark (camera) | 151 | — | |
| Main camera | 200 MP | 108 MP | |
| Ultrawide | 50 MP | 20 MP | |
| Telephoto | 50 MP | 12 MP | |
| Front camera | 12 MP | — | |
| RAM | 12GB / 16GB | 12GB | |
| Storage | 256GB / 512GB / 1TB | 512GB | |
| OS | Android 15 / One UI 7 | Android 10 | |
| Brightness (peak) | 2600 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 162.8×77.6×8.2 mm | 154.4×72.3×10.4 mm | |
| Weight | 218 g | 241 g | |
| Launch price | $1299 | — |
Camera comparison
Samsung Galaxy S25 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Xiaomi Mi Mix Alpha
- Main: 108MP f/1.7
- Ultrawide: 20MP
- Telephoto: 12MP
- Front: —
Display comparison
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Xiaomi Mi Mix Alpha
- 7.9" Flexible Super AMOLED
- Resolution: 2088x2250
- Refresh rate: —
Battery and charging
Samsung Galaxy S25 Ultra
- 5000 mAh
- NanoReview test: web browsing 11:10 hrs, total 28:43 hrs
- Wired: 45W
- Wireless: 15W
Xiaomi Mi Mix Alpha
- 4050 mAh
- Wired: 40W
- No wireless charging
Overall performance score
We compared Samsung Galaxy S25 Ultra and Xiaomi Mi Mix Alpha, covering their specs and all relevant benchmarks.
Samsung Galaxy S25 Ultra leads Xiaomi Mi Mix Alpha by 264.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Xiaomi Mi Mix Alpha
Price unknownDetailed category analysis
performance
In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (92/100 vs 55/100).
display
In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 80/100).
camera
In the "camera" category, the Samsung Galaxy S25 Ultra notably outperforms the Xiaomi Mi Mix Alpha (81/100 vs 56/100).
battery
In the "battery" category, the Samsung Galaxy S25 Ultra notably outperforms the Xiaomi Mi Mix Alpha (56/100 vs 27/100).
portability
In the "portability" category, the Samsung Galaxy S25 Ultra notably outperforms the Xiaomi Mi Mix Alpha (46/100 vs 20/100).
Frequently asked questions
Which is better: the Samsung Galaxy S25 Ultra or the Xiaomi Mi Mix Alpha?
The Samsung Galaxy S25 Ultra significantly outperforms the Xiaomi Mi Mix Alpha by 28 points (80/100 vs 52/100).
What is the rating of the Samsung Galaxy S25 Ultra and the Xiaomi Mi Mix Alpha?
The Samsung Galaxy S25 Ultra has a MobileRank rating of 80/100, the Xiaomi Mi Mix Alpha — 52/100.
Which has the better camera: the Samsung Galaxy S25 Ultra or the Xiaomi Mi Mix Alpha?
The Samsung Galaxy S25 Ultra leads on camera score (81/100 vs 56/100).
Which is more powerful: the Samsung Galaxy S25 Ultra or the Xiaomi Mi Mix Alpha?
The Samsung Galaxy S25 Ultra leads on performance (92/100 vs 55/100).
Should you choose the Samsung Galaxy S25 Ultra over the Xiaomi Mi Mix Alpha?
The Samsung Galaxy S25 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.