Redmi K90 Ultra vs Vivo X90s
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X90s (2023) runs on the MediaTek Dimensity 9200+. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 65/100 (a 8-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4810); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 1,822,096); the Vivo X90s is noticeably lighter (197g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo X90s
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1822096
- Better Geekbench Single: 3013 vs 1917
- Better Geekbench Multi: 9287 vs 4509
- Bigger battery: 8550 vs 4810 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 74/100)
- Longer battery life (78/100 vs 61/100)
- Better display (94/100 vs 84/100)
What makes Vivo X90s better?
- Faster charging: 120W vs 100W
- Lighter: 197g vs 227g
- Better camera (47/100 vs 37/100)
- Better portability (55/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo X90s, the Redmi K90 Ultra scores 8 points higher (73/100 vs 65/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 74/100). In the "camera" category, the Vivo X90s leads (47/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 61/100). In the "performance" category, the Redmi K90 Ultra notably outperforms the Vivo X90s (92/100 vs 74/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100). In the "camera" category, the Vivo X90s is a bit better (47/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Vivo X90s (78/100 vs 61/100). In the "portability" category, the Vivo X90s notably outperforms the Redmi K90 Ultra (55/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo X90s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 9200+ | |
| AnTuTu | 3233695 | 1822096 | |
| Geekbench Single | 3013 | 1917 | |
| Geekbench Multi | 9287 | 4509 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1280x2772 | 1260x2800 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 4810 mAh | |
| Charging | 100W | 120W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 12 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 16 | Android 13, OriginOS 3 | |
| Brightness (peak) | 3500 nits | 1300 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP64 | |
| Dimensions | 162.9×77.9×8.2 mm | 164.1×74.4×8.5 mm | |
| Weight | 227 g | 197 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo X90s
- Main: 50MP f/1.8
- Ultrawide: 12MP
- Telephoto: 12MP
- Front: 32MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo X90s
- 6.8" AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo X90s
- 4810 mAh
- Wired: 120W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo X90s, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo X90s by 77.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo X90s
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra notably outperforms the Vivo X90s (92/100 vs 74/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100).
camera
In the "camera" category, the Vivo X90s is a bit better (47/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Vivo X90s (78/100 vs 61/100).
portability
In the "portability" category, the Vivo X90s notably outperforms the Redmi K90 Ultra (55/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo X90s?
The Redmi K90 Ultra edges out the Vivo X90s by just 8 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Vivo X90s?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo X90s — 65/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo X90s?
The Vivo X90s leads on camera score (47/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo X90s?
The Redmi K90 Ultra leads on performance (92/100 vs 74/100).
Should you choose the Redmi K90 Ultra over the Vivo X90s?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Vivo X90s is a better fit for active users.