Vivo X51 5G vs Xiaomi 17 Ultra (China)
The Vivo X51 5G (2020) runs on the Qualcomm Snapdragon 765G, while the Xiaomi 17 Ultra (China) (2025) runs on the Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Xiaomi 17 Ultra (China) leads — 87/100 vs 46/100 (a 41-point difference). Key differences: the Xiaomi 17 Ultra (China) has the bigger battery (6800 mAh vs 4315); the main camera is 48 MP vs 50 MP; the Xiaomi 17 Ultra (China) is faster in AnTuTu (3,950,082 vs 597,974); the Vivo X51 5G is noticeably lighter (181g vs 224g).
Profile comparison
Category scores
Vivo X51 5G
Xiaomi 17 Ultra (China)
What makes Vivo X51 5G better?
- Lighter: 181g vs 224g
- Better portability (70/100 vs 42/100)
What makes Xiaomi 17 Ultra (China) better?
- Higher AnTuTu: 3950082 vs 597974
- Better Geekbench Single: 3639 vs 799
- Better Geekbench Multi: 11047 vs 1836
- Bigger battery: 6800 vs 4315 mAh
- Faster charging: 90W vs 33W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 90Hz
- Higher performance (98/100 vs 44/100)
- Better camera (87/100 vs 42/100)
- Longer battery life (83/100 vs 31/100)
- Better display (81/100 vs 68/100)
Comparison verdict
Comparing the Vivo X51 5G vs the Xiaomi 17 Ultra (China), the Xiaomi 17 Ultra (China) scores 41 points higher (87/100 vs 46/100). In the "performance" category, the Xiaomi 17 Ultra (China) leads (98/100 vs 44/100). In the "camera" category, the Xiaomi 17 Ultra (China) leads (87/100 vs 42/100). In the "battery" category, the Xiaomi 17 Ultra (China) leads (83/100 vs 31/100). In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Vivo X51 5G (98/100 vs 44/100). In the "display" category, the Xiaomi 17 Ultra (China) is a bit better (81/100 vs 68/100). In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Vivo X51 5G (87/100 vs 42/100). In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the Vivo X51 5G (83/100 vs 31/100). In the "portability" category, the Vivo X51 5G notably outperforms the Xiaomi 17 Ultra (China) (70/100 vs 42/100).
Specs comparison
| Specification | Vivo X51 5G | Xiaomi 17 Ultra (China) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 765G | Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 597974 | 3950082 | |
| Geekbench Single | 799 | 3639 | |
| Geekbench Multi | 1836 | 11047 | |
| Display | 6.6" AMOLED | 6.9" LTPO AMOLED | |
| Resolution | 1080x2376 | 1200x2608 | |
| Refresh rate | 90 Hz | 120 Hz | |
| Battery | 4315 mAh | 6800 mAh | |
| Charging | 33W | 90W | |
| Wireless charging | 0W | 50W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 8 MP | 200 MP | |
| Front camera | 32 MP | 50 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 256GB | 512GB / 1TB | |
| OS | Android 10, Funtouch 10.0 | Android 16 | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 158.5×72.8×8.0 mm | 162.9×77.6×8.3 mm | |
| Weight | 181 g | 224 g | |
| Launch price | — | $892 |
Camera comparison
Vivo X51 5G
- Main: 48MP f/1.6
- Ultrawide: 8MP
- Telephoto: 8MP
- Front: 32MP
Xiaomi 17 Ultra (China)
- Main: 50MP f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Display comparison
Vivo X51 5G
- 6.6" AMOLED
- Resolution: 1080x2376
- Refresh rate: 90 Hz
Xiaomi 17 Ultra (China)
- 6.9" LTPO AMOLED
- Resolution: 1200x2608
- Refresh rate: 120 Hz
Battery and charging
Vivo X51 5G
- 4315 mAh
- Wired: 33W
- No wireless charging
Xiaomi 17 Ultra (China)
- 6800 mAh
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Vivo X51 5G and Xiaomi 17 Ultra (China), covering their specs and all relevant benchmarks.
Xiaomi 17 Ultra (China) leads Vivo X51 5G by 84.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo X51 5G
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Vivo X51 5G (98/100 vs 44/100).
display
In the "display" category, the Xiaomi 17 Ultra (China) is a bit better (81/100 vs 68/100).
camera
In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Vivo X51 5G (87/100 vs 42/100).
battery
In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the Vivo X51 5G (83/100 vs 31/100).
portability
In the "portability" category, the Vivo X51 5G notably outperforms the Xiaomi 17 Ultra (China) (70/100 vs 42/100).
Frequently asked questions
Which is better: the Vivo X51 5G or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) significantly outperforms the Vivo X51 5G by 41 points (87/100 vs 46/100).
What is the rating of the Vivo X51 5G and the Xiaomi 17 Ultra (China)?
The Vivo X51 5G has a MobileRank rating of 46/100, the Xiaomi 17 Ultra (China) — 87/100.
Which has the better camera: the Vivo X51 5G or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on camera score (87/100 vs 42/100).
Which is more powerful: the Vivo X51 5G or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on performance (98/100 vs 44/100).
Should you choose the Vivo X51 5G over the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.