Vivo iQOO Z6 (China) vs Vivo Y21d
The Vivo iQOO Z6 (China) (2022) runs on the Qualcomm Snapdragon 778G+ 5G, while the Vivo Y21d (2025) runs on the Unisoc T7225. By overall MobileRank rating, the Vivo iQOO Z6 (China) leads — 31/100 vs 27/100 (a 4-point difference). Key differences: the Vivo Y21d has the bigger battery (6500 mAh vs 4500); the main camera is 64 MP vs 50 MP; the Vivo iQOO Z6 (China) has NFC for contactless payments, the Vivo Y21d doesn't; the Vivo iQOO Z6 (China) is noticeably lighter (194g vs 209g).
Vivo iQOO Z6 (China)
Vivo Y21d
- Faster charging: 80W vs 44W
- Better main camera: 64MP vs 50MP
- Higher refresh rate: 120Hz vs 90Hz
- Lighter: 194g vs 209g
- Better camera (34/100 vs 24/100)
- Better display (100/100 vs 50/100)
- Better design/ergonomics (57/100 vs 38/100)
- Bigger battery: 6500 vs 4500 mAh
- Longer battery life (54/100 vs 39/100)
- Better value for money (100/100 vs 55/100)
Comparing the Vivo iQOO Z6 (China) vs the Vivo Y21d, the Vivo iQOO Z6 (China) scores 4 points higher (31/100 vs 27/100). In the "camera" category, the Vivo iQOO Z6 (China) leads (34/100 vs 24/100). In the "battery" category, the Vivo Y21d leads (54/100 vs 39/100). In the "value for money" category, the Vivo Y21d leads (100/100 vs 55/100). In the "performance" category, both devices are on the same level — 0/100. In the "display" category, the Vivo iQOO Z6 (China) significantly outperforms the Vivo Y21d (100/100 vs 50/100). In the "camera" category, the Vivo iQOO Z6 (China) is a bit better (34/100 vs 24/100). In the "battery" category, the Vivo Y21d notably outperforms the Vivo iQOO Z6 (China) (54/100 vs 39/100). In the "design" category, the Vivo iQOO Z6 (China) notably outperforms the Vivo Y21d (57/100 vs 38/100). In the "value for money" category, the Vivo Y21d significantly outperforms the Vivo iQOO Z6 (China) (100/100 vs 55/100).
| Specification | Vivo iQOO Z6 (China) | Vivo Y21d | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 778G+ 5G | Unisoc T7225 | |
| AnTuTu | — | 300000 | |
| Geekbench Single | — | 580 | |
| Geekbench Multi | — | 1750 | |
| Display | 6.6" IPS LCD | 6.7" IPS LCD | |
| Resolution | 1080x2388 | 720x1608 | |
| Refresh rate | 120 Hz | 90 Hz | |
| Battery | 4500 mAh | 6500 mAh | |
| Charging | 80W | 44W | |
| Main camera | 64 MP | 50 MP | |
| Front camera | 8 MP | 5 MP | |
| RAM | 8GB / 12GB | 4GB / 6GB / 8GB | |
| Storage | 128GB / 256GB | 128GB / 256GB | |
| OS | Android 12, Origin OS Ocean | Android 15 | |
| Brightness (peak) | 650 nits | 1000 nits | |
| NFC | yes | no | |
| Protection | — | IP68/IP69 | |
| Dimensions | 164.0×75.8×8.6 mm | 166.1×77.0×8.4 mm | |
| Weight | 194 g | 209 g | |
| Price | — | $110 |
Vivo iQOO Z6 (China)
- Main: 64MP f/f/1.8
- Front: 8MP
Vivo Y21d
- Main: 50MP f/f/1.8
- Front: 5MP
Vivo iQOO Z6 (China)
- 6.6" IPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Vivo Y21d
- 6.7" IPS LCD
- Resolution: 720x1608
- Refresh rate: 90 Hz
Vivo iQOO Z6 (China)
- 4500 mAh
- Wired: 80W
- No wireless charging
Vivo Y21d
- 6500 mAh
- Wired: 44W
- No wireless charging
Vivo iQOO Z6 (China)
Price unknownperformance
In the "performance" category, both devices are on the same level — 0/100.
display
In the "display" category, the Vivo iQOO Z6 (China) significantly outperforms the Vivo Y21d (100/100 vs 50/100).
camera
In the "camera" category, the Vivo iQOO Z6 (China) is a bit better (34/100 vs 24/100).
battery
In the "battery" category, the Vivo Y21d notably outperforms the Vivo iQOO Z6 (China) (54/100 vs 39/100).
design
In the "design" category, the Vivo iQOO Z6 (China) notably outperforms the Vivo Y21d (57/100 vs 38/100).
value for money
In the "value for money" category, the Vivo Y21d significantly outperforms the Vivo iQOO Z6 (China) (100/100 vs 55/100).
Which is better: the Vivo iQOO Z6 (China) or the Vivo Y21d?
The Vivo iQOO Z6 (China) edges out the Vivo Y21d 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 Y21d?
The Vivo iQOO Z6 (China) has a MobileRank rating of 31/100, the Vivo Y21d — 27/100.
Which has the better camera: the Vivo iQOO Z6 (China) or the Vivo Y21d?
The Vivo iQOO Z6 (China) leads on camera score (34/100 vs 24/100).
Should you choose the Vivo iQOO Z6 (China) over the Vivo Y21d?
The Vivo iQOO Z6 (China) is a better fit for everyday use. The Vivo Y21d is a better fit for budget-conscious buyers.