Vivo iQOO Z6 (China) vs Vivo X51 5G
The Vivo iQOO Z6 (China) (2022) runs on the Qualcomm Snapdragon 778G+ 5G, while the Vivo X51 5G (2020) runs on the Qualcomm Snapdragon 765G. By overall MobileRank rating, the Vivo iQOO Z6 (China) leads — 50/100 vs 46/100 (a 4-point difference). Key differences: the Vivo iQOO Z6 (China) has the bigger battery (4500 mAh vs 4315); the main camera is 64 MP vs 48 MP; the Vivo iQOO Z6 (China) is faster in AnTuTu (820,210 vs 597,974).
Profile comparison
Category scores
Vivo iQOO Z6 (China)
Vivo X51 5G
What makes Vivo iQOO Z6 (China) better?
- Higher AnTuTu: 820210 vs 597974
- Better Geekbench Single: 1059 vs 799
- Better Geekbench Multi: 3012 vs 1836
- Bigger battery: 4500 vs 4315 mAh
- Faster charging: 80W vs 33W
- Better main camera: 64MP vs 48MP
- Higher refresh rate: 120Hz vs 90Hz
- Higher performance (55/100 vs 44/100)
- Longer battery life (45/100 vs 31/100)
What makes Vivo X51 5G better?
- Lighter: 181g vs 194g
- Better camera (42/100 vs 37/100)
- Better display (68/100 vs 66/100)
- Better portability (70/100 vs 56/100)
Comparison verdict
Comparing the Vivo iQOO Z6 (China) vs the Vivo X51 5G, the Vivo iQOO Z6 (China) scores 4 points higher (50/100 vs 46/100). In the "performance" category, the Vivo iQOO Z6 (China) leads (55/100 vs 44/100). In the "battery" category, the Vivo iQOO Z6 (China) leads (45/100 vs 31/100). In the "performance" category, the Vivo iQOO Z6 (China) is a bit better (55/100 vs 44/100). In the "display" category, the Vivo X51 5G and the Vivo iQOO Z6 (China) are nearly equal (68/100 vs 66/100). In the "camera" category, the Vivo X51 5G is a bit better (42/100 vs 37/100). In the "battery" category, the Vivo iQOO Z6 (China) is a bit better (45/100 vs 31/100). In the "portability" category, the Vivo X51 5G is a bit better (70/100 vs 56/100).
Specs comparison
| Specification | Vivo iQOO Z6 (China) | Vivo X51 5G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 778G+ 5G | Qualcomm Snapdragon 765G | |
| AnTuTu | 820210 | 597974 | |
| Geekbench Single | 1059 | 799 | |
| Geekbench Multi | 3012 | 1836 | |
| Display | 6.6" IPS LCD | 6.6" AMOLED | |
| Resolution | 1080x2388 | 1080x2376 | |
| Refresh rate | 120 Hz | 90 Hz | |
| Battery | 4500 mAh | 4315 mAh | |
| Charging | 80W | 33W | |
| Main camera | 64 MP | 48 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 0 MP | 8 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 8GB / 12GB | 8GB | |
| Storage | 128GB / 256GB | 256GB | |
| OS | Android 12, Origin OS Ocean | Android 10, Funtouch 10.0 | |
| Brightness (peak) | 650 nits | — | |
| NFC | yes | yes | |
| Dimensions | 164.0×75.8×8.6 mm | 158.5×72.8×8.0 mm | |
| Weight | 194 g | 181 g | |
| Launch price | — | — |
Camera comparison
Vivo iQOO Z6 (China)
- Main: 64MP f/1.8
- Front: 8MP
Vivo X51 5G
- Main: 48MP f/1.6
- Ultrawide: 8MP
- Telephoto: 8MP
- Front: 32MP
Display comparison
Vivo iQOO Z6 (China)
- 6.6" IPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Vivo X51 5G
- 6.6" AMOLED
- Resolution: 1080x2376
- Refresh rate: 90 Hz
Battery and charging
Vivo iQOO Z6 (China)
- 4500 mAh
- Wired: 80W
- No wireless charging
Vivo X51 5G
- 4315 mAh
- Wired: 33W
- No wireless charging
Overall performance score
We compared Vivo iQOO Z6 (China) and Vivo X51 5G, covering their specs and all relevant benchmarks.
Vivo iQOO Z6 (China) leads Vivo X51 5G by 37.2% in our overall performance rating.
Benchmarks
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO Z6 (China) is a bit better (55/100 vs 44/100).
display
In the "display" category, the Vivo X51 5G and the Vivo iQOO Z6 (China) are nearly equal (68/100 vs 66/100).
camera
In the "camera" category, the Vivo X51 5G is a bit better (42/100 vs 37/100).
battery
In the "battery" category, the Vivo iQOO Z6 (China) is a bit better (45/100 vs 31/100).
portability
In the "portability" category, the Vivo X51 5G is a bit better (70/100 vs 56/100).
Frequently asked questions
Which is better: the Vivo iQOO Z6 (China) or the Vivo X51 5G?
The Vivo iQOO Z6 (China) edges out the Vivo X51 5G by just 4 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO Z6 (China) and the Vivo X51 5G?
The Vivo iQOO Z6 (China) has a MobileRank rating of 50/100, the Vivo X51 5G — 46/100.
Which has the better camera: the Vivo iQOO Z6 (China) or the Vivo X51 5G?
The Vivo X51 5G leads on camera score (42/100 vs 37/100).
Which is more powerful: the Vivo iQOO Z6 (China) or the Vivo X51 5G?
The Vivo iQOO Z6 (China) leads on performance (55/100 vs 44/100).
Should you choose the Vivo iQOO Z6 (China) over the Vivo X51 5G?
Neither model stands out enough to recommend it for a specific use case: the clearest difference is battery life — better on the Vivo iQOO Z6 (China) (45/100 vs 31/100).