Fairphone 4 vs Xiaomi 15 Ultra
The Fairphone 4 (2021) runs on the Snapdragon 750G, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $449 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 39/100 (a 46-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 3905); the main camera is 48 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 517,683); the Xiaomi 15 Ultra is thinner (9.4mm vs 10.5mm).
Fairphone 4
Xiaomi 15 Ultra
- Cheaper: $449 vs $999
- Overall rating 39/100
- Higher AnTuTu: 3030376 vs 517683
- Better Geekbench Single: 3050 vs 601
- Better Geekbench Multi: 10200 vs 1882
- Bigger battery: 6000 vs 3905 mAh
- Faster charging: 90W vs 20W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (92/100 vs 40/100)
- Better camera (87/100 vs 53/100)
- Longer battery life (80/100 vs 20/100)
- Better display (90/100 vs 43/100)
- Better portability (29/100 vs 28/100)
- Better value for money (82/100 vs 10/100)
Comparing the Fairphone 4 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 46 points higher (85/100 vs 39/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 40/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 53/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 20/100). In the "value for money" category, the Xiaomi 15 Ultra leads (82/100 vs 10/100). In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (92/100 vs 40/100). In the "display" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (90/100 vs 43/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (87/100 vs 53/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (80/100 vs 20/100). In the "portability" category, the Xiaomi 15 Ultra and the Fairphone 4 are nearly equal (29/100 vs 28/100). In the "value for money" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (82/100 vs 10/100).
| Specification | Fairphone 4 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Snapdragon 750G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 517683 | 3030376 | |
| Geekbench Single | 601 | 3050 | |
| Geekbench Multi | 1882 | 10200 | |
| Display | 6.3" IPS LCD | 6.7" LTPO AMOLED | |
| Resolution | 1080x2340 | 3200x1440 | |
| Refresh rate | 60 Hz | 120 Hz | |
| Battery | 3905 mAh | 6000 mAh | |
| Charging | 20W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 48 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 25 MP | 32 MP | |
| RAM | 6GB / 8GB | 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 11 | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68 | |
| Dimensions | 162.0×75.5×10.5 mm | 161.3×75.3×9.4 mm | |
| Weight | 225 g | 225 g | |
| Price | $449 | $999 |
Fairphone 4
- Main: 48MP f/f/1.6
- Ultrawide: 48MP
- Front: 25MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Fairphone 4
- 6.3" IPS LCD
- Resolution: 1080x2340
- Refresh rate: 60 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Fairphone 4
- 3905 mAh
- Wired: 20W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Fairphone 4 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Fairphone 4 by 82.9% in our overall performance rating.
Price difference: $550. Fairphone 4 is cheaper by $550.
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (92/100 vs 40/100).
display
In the "display" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (90/100 vs 43/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (87/100 vs 53/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (80/100 vs 20/100).
portability
In the "portability" category, the Xiaomi 15 Ultra and the Fairphone 4 are nearly equal (29/100 vs 28/100).
value for money
In the "value for money" category, the Xiaomi 15 Ultra significantly outperforms the Fairphone 4 (82/100 vs 10/100).
Which is better: the Fairphone 4 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Fairphone 4 by 46 points (85/100 vs 39/100).
What is the rating of the Fairphone 4 and the Xiaomi 15 Ultra?
The Fairphone 4 has a MobileRank rating of 39/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Fairphone 4 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 53/100).
Which is more powerful: the Fairphone 4 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 40/100).
Should you choose the Fairphone 4 over the Xiaomi 15 Ultra?
The Fairphone 4 is a better fit for everyday use. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.