Vivo iQOO Z7 vs Vivo Y21d
The Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920, while the Vivo Y21d (2025) runs on the Unisoc T7225. By overall MobileRank rating, the Vivo Y21d leads — 27/100 vs 26/100 (a 1-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 Z7 is noticeably lighter (173g vs 209g).
Vivo iQOO Z7
Vivo Y21d
- Better main camera: 64MP vs 50MP
- Lighter: 173g vs 209g
- Better camera (37/100 vs 24/100)
- Better design/ergonomics (83/100 vs 38/100)
- Bigger battery: 6500 vs 4500 mAh
- Longer battery life (54/100 vs 30/100)
- Better value for money (100/100 vs 55/100)
Comparing the Vivo iQOO Z7 vs the Vivo Y21d, the Vivo Y21d scores 1 points higher (27/100 vs 26/100). In the "camera" category, the Vivo iQOO Z7 leads (37/100 vs 24/100). In the "battery" category, the Vivo Y21d leads (54/100 vs 30/100). 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, both devices are on the same level — 50/100. In the "camera" category, the Vivo iQOO Z7 is a bit better (37/100 vs 24/100). In the "battery" category, the Vivo Y21d notably outperforms the Vivo iQOO Z7 (54/100 vs 30/100). In the "design" category, the Vivo iQOO Z7 significantly outperforms the Vivo Y21d (83/100 vs 38/100). In the "value for money" category, the Vivo Y21d significantly outperforms the Vivo iQOO Z7 (100/100 vs 55/100).
| Specification | Vivo iQOO Z7 | Vivo Y21d | |
|---|---|---|---|
| Processor | MediaTek Dimensity 920 | Unisoc T7225 | |
| AnTuTu | — | 300000 | |
| Geekbench Single | — | 580 | |
| Geekbench Multi | — | 1750 | |
| Display | 6.4" AMOLED | 6.7" IPS LCD | |
| Resolution | 1080x2400 | 720x1608 | |
| Refresh rate | 90 Hz | 90 Hz | |
| Battery | 4500 mAh | 6500 mAh | |
| Charging | 44W | 44W | |
| Main camera | 64 MP | 50 MP | |
| Front camera | 16 MP | 5 MP | |
| RAM | 6GB / 8GB | 4GB / 6GB / 8GB | |
| Storage | 128GB | 128GB / 256GB | |
| OS | Android 13, Funtouch 13 | Android 15 | |
| Brightness (peak) | 1300 nits | 1000 nits | |
| NFC | no | no | |
| Protection | IP54 | IP68/IP69 | |
| Dimensions | 158.9×73.5×7.8 mm | 166.1×77.0×8.4 mm | |
| Weight | 173 g | 209 g | |
| Price | — | $110 |
Vivo iQOO Z7
- Main: 64MP
- Front: 16MP
Vivo Y21d
- Main: 50MP f/f/1.8
- Front: 5MP
Vivo iQOO Z7
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Vivo Y21d
- 6.7" IPS LCD
- Resolution: 720x1608
- Refresh rate: 90 Hz
Vivo iQOO Z7
- 4500 mAh
- Wired: 44W
- No wireless charging
Vivo Y21d
- 6500 mAh
- Wired: 44W
- No wireless charging
Vivo iQOO Z7
Price unknownperformance
In the "performance" category, both devices are on the same level — 0/100.
display
In the "display" category, both devices are on the same level — 50/100.
camera
In the "camera" category, the Vivo iQOO Z7 is a bit better (37/100 vs 24/100).
battery
In the "battery" category, the Vivo Y21d notably outperforms the Vivo iQOO Z7 (54/100 vs 30/100).
design
In the "design" category, the Vivo iQOO Z7 significantly outperforms the Vivo Y21d (83/100 vs 38/100).
value for money
In the "value for money" category, the Vivo Y21d significantly outperforms the Vivo iQOO Z7 (100/100 vs 55/100).
Which is better: the Vivo iQOO Z7 or the Vivo Y21d?
The Vivo Y21d edges out the Vivo iQOO Z7 by just 1 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO Z7 and the Vivo Y21d?
The Vivo iQOO Z7 has a MobileRank rating of 26/100, the Vivo Y21d — 27/100.
Which has the better camera: the Vivo iQOO Z7 or the Vivo Y21d?
The Vivo iQOO Z7 leads on camera score (37/100 vs 24/100).
Should you choose the Vivo iQOO Z7 over the Vivo Y21d?
The Vivo iQOO Z7 is a better fit for everyday use. The Vivo Y21d is a better fit for budget-conscious buyers.