Redmi K90 vs Vivo iQOO Z6 (China)
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO Z6 (China) (2022) runs on the Qualcomm Snapdragon 778G+ 5G. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 50/100 (a 26-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 820,210).
Profile comparison
Category scores
Redmi K90
Vivo iQOO Z6 (China)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 820210
- Better Geekbench Single: 3013 vs 1059
- Better Geekbench Multi: 9287 vs 3012
- Bigger battery: 7100 vs 4500 mAh
- Faster charging: 100W vs 80W
- Higher performance (91/100 vs 55/100)
- Better camera (58/100 vs 37/100)
- Longer battery life (72/100 vs 45/100)
- Better display (82/100 vs 66/100)
What makes Vivo iQOO Z6 (China) better?
- Better main camera: 64MP vs 50MP
- Lighter: 194g vs 206g
- Better portability (56/100 vs 55/100)
Comparison verdict
Comparing the Redmi K90 vs the Vivo iQOO Z6 (China), the Redmi K90 scores 26 points higher (76/100 vs 50/100). In the "performance" category, the Redmi K90 leads (91/100 vs 55/100). In the "camera" category, the Redmi K90 leads (58/100 vs 37/100). In the "battery" category, the Redmi K90 leads (72/100 vs 45/100). In the "performance" category, the Redmi K90 significantly outperforms the Vivo iQOO Z6 (China) (91/100 vs 55/100). In the "display" category, the Redmi K90 notably outperforms the Vivo iQOO Z6 (China) (82/100 vs 66/100). In the "camera" category, the Redmi K90 notably outperforms the Vivo iQOO Z6 (China) (58/100 vs 37/100). In the "battery" category, the Redmi K90 notably outperforms the Vivo iQOO Z6 (China) (72/100 vs 45/100). In the "portability" category, the Vivo iQOO Z6 (China) and the Redmi K90 are nearly equal (56/100 vs 55/100).
Specs comparison
| Specification | Redmi K90 | Vivo iQOO Z6 (China) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 778G+ 5G | |
| AnTuTu | 3077585 | 820210 | |
| Geekbench Single | 3013 | 1059 | |
| Geekbench Multi | 9287 | 3012 | |
| Display | 6.6" AMOLED | 6.6" IPS LCD | |
| Resolution | 2510x1156 | 1080x2388 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7100 mAh | 4500 mAh | |
| Charging | 100W | 80W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 12, Origin OS Ocean | |
| Brightness (peak) | 3500 nits | 650 nits | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 164.0×75.8×8.6 mm | |
| Weight | 206 g | 194 g | |
| Launch price | $401 | — |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Vivo iQOO Z6 (China)
- Main: 64MP f/1.8
- Front: 8MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Vivo iQOO Z6 (China)
- 6.6" IPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z6 (China)
- 4500 mAh
- Wired: 80W
- No wireless charging
Overall performance score
We compared Redmi K90 and Vivo iQOO Z6 (China), covering their specs and all relevant benchmarks.
Redmi K90 leads Vivo iQOO Z6 (China) by 275.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z6 (China)
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Vivo iQOO Z6 (China) (91/100 vs 55/100).
display
In the "display" category, the Redmi K90 notably outperforms the Vivo iQOO Z6 (China) (82/100 vs 66/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Vivo iQOO Z6 (China) (58/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Vivo iQOO Z6 (China) (72/100 vs 45/100).
portability
In the "portability" category, the Vivo iQOO Z6 (China) and the Redmi K90 are nearly equal (56/100 vs 55/100).
Frequently asked questions
Which is better: the Redmi K90 or the Vivo iQOO Z6 (China)?
The Redmi K90 significantly outperforms the Vivo iQOO Z6 (China) by 26 points (76/100 vs 50/100).
What is the rating of the Redmi K90 and the Vivo iQOO Z6 (China)?
The Redmi K90 has a MobileRank rating of 76/100, the Vivo iQOO Z6 (China) — 50/100.
Which has the better camera: the Redmi K90 or the Vivo iQOO Z6 (China)?
The Redmi K90 leads on camera score (58/100 vs 37/100).
Which is more powerful: the Redmi K90 or the Vivo iQOO Z6 (China)?
The Redmi K90 leads on performance (91/100 vs 55/100).
Should you choose the Redmi K90 over the Vivo iQOO Z6 (China)?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.