Nubia Z40S Pro vs Xiaomi 15 Ultra
The Nubia Z40S Pro (2022) runs on the Qualcomm Snapdragon 8+ Gen 1, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 69/100 (a 16-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5000); the main camera is 64 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 1,420,808); the Nubia Z40S Pro is noticeably lighter (205g vs 225g).
Profile comparison
Category scores
Nubia Z40S Pro
Xiaomi 15 Ultra
What makes Nubia Z40S Pro better?
- Better main camera: 64MP vs 50MP
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 205g vs 225g
- Better portability (54/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Higher AnTuTu: 3030376 vs 1420808
- Better Geekbench Single: 3050 vs 1761
- Better Geekbench Multi: 10200 vs 4688
- Bigger battery: 6000 vs 5000 mAh
- Faster charging: 90W vs 80W
- Faster wireless charging: 50W vs 15W
- Higher performance (92/100 vs 71/100)
- Better camera (87/100 vs 63/100)
- Longer battery life (80/100 vs 64/100)
- Better display (90/100 vs 89/100)
Comparison verdict
Comparing the Nubia Z40S Pro vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 16 points higher (85/100 vs 69/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 71/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 63/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 64/100). In the "performance" category, the Xiaomi 15 Ultra notably outperforms the Nubia Z40S Pro (92/100 vs 71/100). In the "display" category, the Xiaomi 15 Ultra and the Nubia Z40S Pro are nearly equal (90/100 vs 89/100). In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Nubia Z40S Pro (87/100 vs 63/100). In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Nubia Z40S Pro (80/100 vs 64/100). In the "portability" category, the Nubia Z40S Pro notably outperforms the Xiaomi 15 Ultra (54/100 vs 29/100).
Specs comparison
| Specification | Nubia Z40S Pro | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8+ Gen 1 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1420808 | 3030376 | |
| Geekbench Single | 1761 | 3050 | |
| Geekbench Multi | 4688 | 10200 | |
| Display | 6.7" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1080x2400 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 5000 mAh | 6000 mAh | |
| Charging | 80W | 90W | |
| Wireless charging | 15W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 8 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 8GB / 12GB / 18GB | 16GB | |
| Storage | 128GB / 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 12, MyOS 12 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1000 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 161.3×74.0×8.1 mm | 161.3×75.3×9.4 mm | |
| Weight | 205 g | 225 g | |
| Launch price | — | $999 |
Camera comparison
Nubia Z40S Pro
- Main: 64MP f/1.6
- Ultrawide: 50MP
- Telephoto: 8MP
- Front: 16MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Nubia Z40S Pro
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 144 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Nubia Z40S Pro
- 5000 mAh
- Wired: 80W
- Wireless: 15W
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 Z40S Pro and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Nubia Z40S Pro by 53.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Nubia Z40S Pro
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 15 Ultra notably outperforms the Nubia Z40S Pro (92/100 vs 71/100).
display
In the "display" category, the Xiaomi 15 Ultra and the Nubia Z40S Pro are nearly equal (90/100 vs 89/100).
camera
In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Nubia Z40S Pro (87/100 vs 63/100).
battery
In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Nubia Z40S Pro (80/100 vs 64/100).
portability
In the "portability" category, the Nubia Z40S Pro notably outperforms the Xiaomi 15 Ultra (54/100 vs 29/100).
Frequently asked questions
Which is better: the Nubia Z40S Pro or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the Nubia Z40S Pro — the overall rating gap is 16 points.
What is the rating of the Nubia Z40S Pro and the Xiaomi 15 Ultra?
The Nubia Z40S Pro has a MobileRank rating of 69/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Nubia Z40S Pro or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 63/100).
Which is more powerful: the Nubia Z40S Pro or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 71/100).
Should you choose the Nubia Z40S Pro over the Xiaomi 15 Ultra?
The Nubia Z40S Pro 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.