Nothing Phone (4a) vs Xiaomi 15 Ultra
The Nothing Phone (4a) (2026) runs on the Qualcomm Snapdragon 7s Gen 4, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $349 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 57/100 (a 28-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5200); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 1,148,725); the Nothing Phone (4a) is noticeably lighter (190g vs 225g).
Nothing Phone (4a)
Xiaomi 15 Ultra
- Lighter: 190g vs 225g
- Cheaper: $349 vs $999
- Better portability (59/100 vs 29/100)
- Higher AnTuTu: 3030376 vs 1148725
- Better Geekbench Single: 3050 vs 1237
- Better Geekbench Multi: 10200 vs 3281
- Bigger battery: 6000 vs 5200 mAh
- Faster charging: 90W vs 45W
- Higher performance (92/100 vs 62/100)
- Better camera (87/100 vs 40/100)
- Longer battery life (80/100 vs 53/100)
- Better display (90/100 vs 80/100)
- Better value for money (82/100 vs 54/100)
Comparing the Nothing Phone (4a) vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 28 points higher (85/100 vs 57/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 62/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 40/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 53/100). In the "value for money" category, the Xiaomi 15 Ultra leads (82/100 vs 54/100). In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Nothing Phone (4a) (92/100 vs 62/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 80/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Nothing Phone (4a) (87/100 vs 40/100). In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Nothing Phone (4a) (80/100 vs 53/100). In the "portability" category, the Nothing Phone (4a) significantly outperforms the Xiaomi 15 Ultra (59/100 vs 29/100). In the "value for money" category, the Xiaomi 15 Ultra notably outperforms the Nothing Phone (4a) (82/100 vs 54/100).
| Specification | Nothing Phone (4a) | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 7s Gen 4 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1148725 | 3030376 | |
| Geekbench Single | 1237 | 3050 | |
| Geekbench Multi | 3281 | 10200 | |
| Display | 6.7" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 2412x1080 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5200 mAh | 6000 mAh | |
| Charging | 45W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 8GB / 12GB | 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 4500 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | 164.0×77.6×8.6 mm | 161.3×75.3×9.4 mm | |
| Weight | 190 g | 225 g | |
| Price | $349 | $999 |
Nothing Phone (4a)
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Nothing Phone (4a)
- 6.7" AMOLED
- Resolution: 2412x1080
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Nothing Phone (4a)
- 5200 mAh
- Wired: 45W
- 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 Nothing Phone (4a) and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Nothing Phone (4a) by 62.1% in our overall performance rating.
Price difference: $650. Nothing Phone (4a) is cheaper by $650.
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Nothing Phone (4a) (92/100 vs 62/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 80/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Nothing Phone (4a) (87/100 vs 40/100).
battery
In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Nothing Phone (4a) (80/100 vs 53/100).
portability
In the "portability" category, the Nothing Phone (4a) significantly outperforms the Xiaomi 15 Ultra (59/100 vs 29/100).
value for money
In the "value for money" category, the Xiaomi 15 Ultra notably outperforms the Nothing Phone (4a) (82/100 vs 54/100).
Which is better: the Nothing Phone (4a) or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Nothing Phone (4a) by 28 points (85/100 vs 57/100).
What is the rating of the Nothing Phone (4a) and the Xiaomi 15 Ultra?
The Nothing Phone (4a) has a MobileRank rating of 57/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Nothing Phone (4a) or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 40/100).
Which is more powerful: the Nothing Phone (4a) or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 62/100).
Should you choose the Nothing Phone (4a) over the Xiaomi 15 Ultra?
The Nothing Phone (4a) is a better fit for active users. 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.