Redmi K90 Ultra vs Vivo iQOO Z6 44W
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO Z6 44W (2022) runs on the Qualcomm Snapdragon 680 4G. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 41/100 (a 32-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 424,216); the Redmi K90 Ultra has NFC for contactless payments, the Vivo iQOO Z6 44W doesn't; the Vivo iQOO Z6 44W is noticeably lighter (182g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo iQOO Z6 44W
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 424216
- Better Geekbench Single: 3013 vs 412
- Better Geekbench Multi: 9287 vs 1423
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (92/100 vs 31/100)
- Better camera (37/100 vs 32/100)
- Longer battery life (78/100 vs 48/100)
- Better display (94/100 vs 69/100)
What makes Vivo iQOO Z6 44W better?
- Lighter: 182g vs 227g
- Better portability (65/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo iQOO Z6 44W, the Redmi K90 Ultra scores 32 points higher (73/100 vs 41/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 31/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 48/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 44W (92/100 vs 31/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z6 44W (94/100 vs 69/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 44W (78/100 vs 48/100). In the "portability" category, the Vivo iQOO Z6 44W notably outperforms the Redmi K90 Ultra (65/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo iQOO Z6 44W | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 680 4G | |
| AnTuTu | 3233695 | 424216 | |
| Geekbench Single | 3013 | 412 | |
| Geekbench Multi | 9287 | 1423 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | 90 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB | |
| OS | Android 16 | Android 12, Funtouch 12 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 160.8×73.8×8.4 mm | |
| Weight | 227 g | 182 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z6 44W
- Main: 50MP f/1.8
- Front: 16MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO Z6 44W
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z6 44W
- 5000 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo iQOO Z6 44W, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo iQOO Z6 44W by 662.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z6 44W
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 44W (92/100 vs 31/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z6 44W (94/100 vs 69/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 44W (78/100 vs 48/100).
portability
In the "portability" category, the Vivo iQOO Z6 44W notably outperforms the Redmi K90 Ultra (65/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo iQOO Z6 44W?
The Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 44W by 32 points (73/100 vs 41/100).
What is the rating of the Redmi K90 Ultra and the Vivo iQOO Z6 44W?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo iQOO Z6 44W — 41/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo iQOO Z6 44W?
The Redmi K90 Ultra leads on camera score (37/100 vs 32/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo iQOO Z6 44W?
The Redmi K90 Ultra leads on performance (92/100 vs 31/100).
Should you choose the Redmi K90 Ultra over the Vivo iQOO Z6 44W?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.