Redmi K90 Ultra vs Vivo iQOO Z7
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 50/100 (a 23-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 750,481); the Redmi K90 Ultra has NFC for contactless payments, the Vivo iQOO Z7 doesn't; the Vivo iQOO Z7 is noticeably lighter (173g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo iQOO Z7
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 750481
- Better Geekbench Single: 3013 vs 936
- Better Geekbench Multi: 9287 vs 2318
- Bigger battery: 8550 vs 4500 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (92/100 vs 51/100)
- Longer battery life (78/100 vs 38/100)
- Better display (94/100 vs 69/100)
What makes Vivo iQOO Z7 better?
- Better main camera: 64MP vs 50MP
- Lighter: 173g vs 227g
- Better camera (40/100 vs 37/100)
- Better portability (77/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo iQOO Z7, the Redmi K90 Ultra scores 23 points higher (73/100 vs 50/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 51/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 38/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (92/100 vs 51/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z7 (94/100 vs 69/100). In the "camera" category, the Vivo iQOO Z7 and the Redmi K90 Ultra are nearly equal (40/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (78/100 vs 38/100). In the "portability" category, the Vivo iQOO Z7 significantly outperforms the Redmi K90 Ultra (77/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo iQOO Z7 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 920 | |
| AnTuTu | 3233695 | 750481 | |
| Geekbench Single | 3013 | 936 | |
| Geekbench Multi | 9287 | 2318 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | 90 Hz | |
| Battery | 8550 mAh | 4500 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB | |
| OS | Android 16 | Android 13, Funtouch 13 | |
| Brightness (peak) | 3500 nits | 1300 nits | |
| NFC | yes | no | |
| Protection | IP68/IP69 | IP54 | |
| Dimensions | 162.9×77.9×8.2 mm | 158.9×73.5×7.8 mm | |
| Weight | 227 g | 173 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z7
- Main: 64MP
- Front: 16MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO Z7
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z7
- 4500 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo iQOO Z7, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo iQOO Z7 by 330.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z7
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (92/100 vs 51/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z7 (94/100 vs 69/100).
camera
In the "camera" category, the Vivo iQOO Z7 and the Redmi K90 Ultra are nearly equal (40/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (78/100 vs 38/100).
portability
In the "portability" category, the Vivo iQOO Z7 significantly outperforms the Redmi K90 Ultra (77/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo iQOO Z7?
The Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 by 23 points (73/100 vs 50/100).
What is the rating of the Redmi K90 Ultra and the Vivo iQOO Z7?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo iQOO Z7 — 50/100.
Which is more powerful: the Redmi K90 Ultra or the Vivo iQOO Z7?
The Redmi K90 Ultra leads on performance (92/100 vs 51/100).
Should you choose the Redmi K90 Ultra over the Vivo iQOO Z7?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.