Nubia Z70S Ultra vs Xiaomi 15 Ultra
The Nubia Z70S Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $600 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 81/100 (a 4-point difference). Key differences: the Nubia Z70S Ultra has the bigger battery (6600 mAh vs 6000); the Nubia Z70S Ultra is faster in AnTuTu (3,228,937 vs 3,030,376).
Profile comparison
Category scores
Nubia Z70S Ultra
Xiaomi 15 Ultra
What makes Nubia Z70S Ultra better?
- Higher AnTuTu: 3228937 vs 3030376
- Bigger battery: 6600 vs 6000 mAh
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $600 vs $999
- Better display (93/100 vs 90/100)
- Better portability (36/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Better Geekbench Single: 3050 vs 3013
- Better Geekbench Multi: 10200 vs 9287
- Faster charging: 90W vs 80W
- Lighter: 225g vs 228g
- Better camera (87/100 vs 79/100)
- Longer battery life (80/100 vs 66/100)
Comparison verdict
Comparing the Nubia Z70S Ultra vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 4 points higher (85/100 vs 81/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 66/100). Value score: Nubia Z70S Ultra — 76/100, Xiaomi 15 Ultra — 80/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, both devices are on the same level — 92/100. In the "display" category, the Nubia Z70S Ultra and the Xiaomi 15 Ultra are nearly equal (93/100 vs 90/100). In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 79/100). In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 66/100). In the "portability" category, the Nubia Z70S Ultra is a bit better (36/100 vs 29/100).
Specs comparison
| Specification | Nubia Z70S Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3228937 | 3030376 | |
| Geekbench Single | 3013 | 3050 | |
| Geekbench Multi | 9287 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1216x2688 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 6600 mAh | 6000 mAh | |
| Charging | 80W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 64 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB / 16GB / 24GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 2000 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 164.3×77.1×8.6 mm | 161.3×75.3×9.4 mm | |
| Weight | 228 g | 225 g | |
| Launch price | $600 | $999 |
Camera comparison
Nubia Z70S Ultra
- Main: 50MP f/1.7
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 16MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Nubia Z70S Ultra
- 6.8" AMOLED
- Resolution: 1216x2688
- Refresh rate: 144 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Nubia Z70S Ultra
- 6600 mAh
- NanoReview test: web browsing 7:53 hrs, total 22:56 hrs
- Wired: 80W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Nubia Z70S Ultra and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Nubia Z70S Ultra leads Xiaomi 15 Ultra by 6.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $399. Nubia Z70S Ultra was $399 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, both devices are on the same level — 92/100.
display
In the "display" category, the Nubia Z70S Ultra and the Xiaomi 15 Ultra are nearly equal (93/100 vs 90/100).
camera
In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 79/100).
battery
In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 66/100).
portability
In the "portability" category, the Nubia Z70S Ultra is a bit better (36/100 vs 29/100).
Frequently asked questions
Which is better: the Nubia Z70S Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra edges out the Nubia Z70S Ultra by just 4 points — the two devices are very close in overall level.
What is the rating of the Nubia Z70S Ultra and the Xiaomi 15 Ultra?
The Nubia Z70S Ultra has a MobileRank rating of 81/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Nubia Z70S Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 79/100).
Should you choose the Nubia Z70S Ultra over the Xiaomi 15 Ultra?
The Nubia Z70S Ultra is a better fit for gamers and power users, budget-conscious buyers. 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.