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 53/100 (a 20-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 983,562); 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).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo iQOO Z11x
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 983562
- Better Geekbench Single: 3013 vs 1061
- Better Geekbench Multi: 9287 vs 3185
- Bigger battery: 8550 vs 6000 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 58/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 56/100)
- Better display (94/100 vs 79/100)
What makes Vivo iQOO Z11x better?
- Lighter: 190g vs 227g
- Cheaper at launch: $170 vs $420
- Better portability (60/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo iQOO Z11x, the Redmi K90 Ultra scores 20 points higher (73/100 vs 53/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 58/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 56/100). Value score: Redmi K90 Ultra — 72/100, Vivo iQOO Z11x — 74/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z11x (92/100 vs 58/100). 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).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo iQOO Z11x | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 7400 Turbo | |
| AnTuTu | 3233695 | 983562 | |
| Geekbench Single | 3013 | 1061 | |
| Geekbench Multi | 9287 | 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 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z11x
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO Z11x
- 6.7" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z11x
- 6000 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo iQOO Z11x, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo iQOO Z11x by 228.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $250. Vivo iQOO Z11x was $250 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z11x (92/100 vs 58/100).
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).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo iQOO Z11x?
The Redmi K90 Ultra significantly outperforms the Vivo iQOO Z11x by 20 points (73/100 vs 53/100).
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 — 53/100.
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 58/100).
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.