Redmi K90 Ultra vs Vivo X100s Pro
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X100s Pro (2024) runs on the MediaTek Dimensity 9300+; launch prices were $420 and $899. By overall MobileRank rating, the Vivo X100s Pro leads — 79/100 vs 73/100 (a 6-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5400); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 2,351,914).
Redmi K90 Ultra
Vivo X100s Pro
- Higher AnTuTu: 3119308 vs 2351914
- Better Geekbench Single: 3041 vs 2250
- Better Geekbench Multi: 9494 vs 7315
- Bigger battery: 8550 vs 5400 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $420 vs $899
- Higher performance (92/100 vs 83/100)
- Better display (94/100 vs 84/100)
- Better portability (40/100 vs 36/100)
- Lighter: 224g vs 227g
- Better camera (78/100 vs 37/100)
- Longer battery life (80/100 vs 78/100)
Comparing the Redmi K90 Ultra vs the Vivo X100s Pro, the Vivo X100s Pro scores 6 points higher (79/100 vs 73/100). In the "camera" category, the Vivo X100s Pro leads (78/100 vs 37/100). Value score: Redmi K90 Ultra — 82/100, Vivo X100s Pro — 70/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Redmi K90 Ultra is a bit better (92/100 vs 83/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100). In the "camera" category, the Vivo X100s Pro significantly outperforms the Redmi K90 Ultra (78/100 vs 37/100). In the "battery" category, the Vivo X100s Pro and the Redmi K90 Ultra are nearly equal (80/100 vs 78/100). In the "portability" category, the Redmi K90 Ultra and the Vivo X100s Pro are nearly equal (40/100 vs 36/100).
| Specification | Redmi K90 Ultra | Vivo X100s Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 9300+ | |
| AnTuTu | 3119308 | 2351914 | |
| Geekbench Single | 3041 | 2250 | |
| Geekbench Multi | 9494 | 7315 | |
| Display | 6.8" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1280x2772 | 1260x2800 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5400 mAh | |
| Charging | 100W | 100W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 14, OriginOS 4 | |
| Brightness (peak) | 3500 nits | 3000 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 162.9×77.9×8.2 mm | 164.1×75.3×8.9 mm | |
| Weight | 227 g | 224 g | |
| Launch price | $420 | $899 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo X100s Pro
- Main: 50MP f/f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo X100s Pro
- 6.8" LTPO AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo X100s Pro
- 5400 mAh
- Wired: 100W
- Wireless: 50W
We compared Redmi K90 Ultra and Vivo X100s Pro, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo X100s Pro by 32.6% in our overall performance rating.
Launch price difference: $479. Redmi K90 Ultra was $479 cheaper at launch.
performance
In the "performance" category, the Redmi K90 Ultra is a bit better (92/100 vs 83/100).
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 X100s Pro significantly outperforms the Redmi K90 Ultra (78/100 vs 37/100).
battery
In the "battery" category, the Vivo X100s Pro and the Redmi K90 Ultra are nearly equal (80/100 vs 78/100).
portability
In the "portability" category, the Redmi K90 Ultra and the Vivo X100s Pro are nearly equal (40/100 vs 36/100).
Which is better: the Redmi K90 Ultra or the Vivo X100s Pro?
The Vivo X100s Pro edges out the Redmi K90 Ultra by just 6 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Vivo X100s Pro?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo X100s Pro — 79/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo X100s Pro?
The Vivo X100s Pro leads on camera score (78/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo X100s Pro?
The Redmi K90 Ultra leads on performance (92/100 vs 83/100).
Should you choose the Redmi K90 Ultra over the Vivo X100s Pro?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo X100s Pro is a better fit for gamers and power users, those who care about battery life.