Redmi K90 Ultra vs Vivo iQOO Z6 Lite
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO Z6 Lite (2022) runs on the Qualcomm Snapdragon 4 Gen 1. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 44/100 (a 29-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 521,686); the Redmi K90 Ultra has NFC for contactless payments, the Vivo iQOO Z6 Lite doesn't; the Vivo iQOO Z6 Lite is noticeably lighter (194g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo iQOO Z6 Lite
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 521686
- Better Geekbench Single: 3013 vs 852
- Better Geekbench Multi: 9287 vs 2048
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 18W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 44/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 66/100)
What makes Vivo iQOO Z6 Lite better?
- Lighter: 194g vs 227g
- Better portability (59/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo iQOO Z6 Lite, the Redmi K90 Ultra scores 29 points higher (73/100 vs 44/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 44/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 43/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 Lite (92/100 vs 44/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z6 Lite (94/100 vs 66/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 Lite (78/100 vs 43/100). In the "portability" category, the Vivo iQOO Z6 Lite notably outperforms the Redmi K90 Ultra (59/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo iQOO Z6 Lite | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 4 Gen 1 | |
| AnTuTu | 3233695 | 521686 | |
| Geekbench Single | 3013 | 852 | |
| Geekbench Multi | 9287 | 2048 | |
| Display | 6.8" AMOLED | 6.6" IPS LCD | |
| Resolution | 1280x2772 | 1080x2408 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB | 64GB / 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 | 164.0×75.8×8.3 mm | |
| Weight | 227 g | 194 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z6 Lite
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO Z6 Lite
- 6.6" IPS LCD
- Resolution: 1080x2408
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z6 Lite
- 5000 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo iQOO Z6 Lite, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo iQOO Z6 Lite by 519.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z6 Lite
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 Lite (92/100 vs 44/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z6 Lite (94/100 vs 66/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 Lite (78/100 vs 43/100).
portability
In the "portability" category, the Vivo iQOO Z6 Lite notably outperforms the Redmi K90 Ultra (59/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo iQOO Z6 Lite?
The Redmi K90 Ultra significantly outperforms the Vivo iQOO Z6 Lite by 29 points (73/100 vs 44/100).
What is the rating of the Redmi K90 Ultra and the Vivo iQOO Z6 Lite?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo iQOO Z6 Lite — 44/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo iQOO Z6 Lite?
The Redmi K90 Ultra leads on camera score (37/100 vs 30/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo iQOO Z6 Lite?
The Redmi K90 Ultra leads on performance (92/100 vs 44/100).
Should you choose the Redmi K90 Ultra over the Vivo iQOO Z6 Lite?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.