Redmi K90 Ultra vs Vivo iQOO Z11x
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO Z11x (2026) runs on the MediaTek Dimensity 7400 Turbo; launch prices were $420 and $170. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 54/100 (a 19-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6000); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 1,214,772); the Redmi K90 Ultra has NFC for contactless payments, the Vivo iQOO Z11x doesn't; the Vivo iQOO Z11x is noticeably lighter (190g vs 227g).
Redmi K90 Ultra
Vivo iQOO Z11x
- Higher AnTuTu: 3119308 vs 1214772
- Better Geekbench Single: 3041 vs 1061
- Better Geekbench Multi: 9494 vs 3185
- Bigger battery: 8550 vs 6000 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 60/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 56/100)
- Better display (94/100 vs 79/100)
- Better value for money (82/100 vs 78/100)
- Lighter: 190g vs 227g
- Cheaper at launch: $170 vs $420
- Better portability (60/100 vs 40/100)
Comparing the Redmi K90 Ultra vs the Vivo iQOO Z11x, the Redmi K90 Ultra scores 19 points higher (73/100 vs 54/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 60/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 56/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z11x (92/100 vs 60/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z11x (94/100 vs 79/100). 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 notably outperforms the Vivo iQOO Z11x (78/100 vs 56/100). In the "portability" category, the Vivo iQOO Z11x notably outperforms the Redmi K90 Ultra (60/100 vs 40/100). In the "value for money" category, the Redmi K90 Ultra and the Vivo iQOO Z11x are nearly equal (82/100 vs 78/100).
| Specification | Redmi K90 Ultra | Vivo iQOO Z11x | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 7400 Turbo | |
| AnTuTu | 3119308 | 1214772 | |
| Geekbench Single | 3041 | 1061 | |
| Geekbench Multi | 9494 | 3185 | |
| Display | 6.8" AMOLED | 6.7" AMOLED | |
| Resolution | 1280x2772 | 2400x1080 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 6000 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 15 | |
| Brightness (peak) | 3500 nits | 1200 nits | |
| NFC | yes | no | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 162.9×77.9×8.2 mm | 166.6×78.4×8.4 mm | |
| Weight | 227 g | 190 g | |
| Launch price | $420 | $170 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z11x
- Main: 50MP f/1.8
- Front: 8MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO Z11x
- 6.7" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z11x
- 6000 mAh
- Wired: 44W
- No wireless charging
We compared Redmi K90 Ultra and Vivo iQOO Z11x, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo iQOO Z11x by 156.8% in our overall performance rating.
Launch price difference: $250. Vivo iQOO Z11x was $250 cheaper at launch.
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z11x (92/100 vs 60/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z11x (94/100 vs 79/100).
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 notably outperforms the Vivo iQOO Z11x (78/100 vs 56/100).
portability
In the "portability" category, the Vivo iQOO Z11x notably outperforms the Redmi K90 Ultra (60/100 vs 40/100).
value for money
In the "value for money" category, the Redmi K90 Ultra and the Vivo iQOO Z11x are nearly equal (82/100 vs 78/100).
Which is better: the Redmi K90 Ultra or the Vivo iQOO Z11x?
The Redmi K90 Ultra is noticeably better than the Vivo iQOO Z11x — the overall rating gap is 19 points.
What is the rating of the Redmi K90 Ultra and the Vivo iQOO Z11x?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo iQOO Z11x — 54/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo iQOO Z11x?
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 Z11x?
The Redmi K90 Ultra leads on performance (92/100 vs 60/100).
Should you choose the Redmi K90 Ultra over the Vivo iQOO Z11x?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo iQOO Z11x is a better fit for active users, budget-conscious buyers.