Redmi K90 Ultra vs Sharp Aquos R9 Pro
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Sharp Aquos R9 Pro (2024) runs on the Qualcomm Snapdragon 8s Gen 3. By overall MobileRank rating, the Sharp Aquos R9 Pro leads — 76/100 vs 73/100 (a 3-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 1,797,821); the Redmi K90 Ultra is thinner (8.2mm vs 9.3mm).
Profile comparison
Category scores
Redmi K90 Ultra
Sharp Aquos R9 Pro
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1797821
- Better Geekbench Single: 3013 vs 1923
- Better Geekbench Multi: 9287 vs 5179
- Bigger battery: 8550 vs 5000 mAh
- Lighter: 227g vs 229g
- Higher performance (92/100 vs 75/100)
- Longer battery life (78/100 vs 66/100)
- Better portability (40/100 vs 27/100)
What makes Sharp Aquos R9 Pro better?
- Higher refresh rate: 240Hz vs 165Hz
- Better camera (81/100 vs 37/100)
- Better display (99/100 vs 94/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Sharp Aquos R9 Pro, the Sharp Aquos R9 Pro scores 3 points higher (76/100 vs 73/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 75/100). In the "camera" category, the Sharp Aquos R9 Pro leads (81/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 66/100). In the "performance" category, the Redmi K90 Ultra notably outperforms the Sharp Aquos R9 Pro (92/100 vs 75/100). In the "display" category, the Sharp Aquos R9 Pro is a bit better (99/100 vs 94/100). In the "camera" category, the Sharp Aquos R9 Pro significantly outperforms the Redmi K90 Ultra (81/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 66/100). In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 27/100).
Specs comparison
| Specification | Redmi K90 Ultra | Sharp Aquos R9 Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8s Gen 3 | |
| AnTuTu | 3233695 | 1797821 | |
| Geekbench Single | 3013 | 1923 | |
| Geekbench Multi | 9287 | 5179 | |
| Display | 6.8" AMOLED | 6.7" PRO IGZO LTPO OLED | |
| Resolution | 1280x2772 | 1440x3120 | |
| Refresh rate | 165 Hz | 240 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 50 MP | |
| RAM | 12GB / 16GB | 12GB | |
| Storage | 256GB / 512GB | 512GB | |
| OS | Android 16 | Android 14 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 162.9×77.9×8.2 mm | 162.0×78.0×9.3 mm | |
| Weight | 227 g | 229 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Sharp Aquos R9 Pro
- Main: 50MP
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Sharp Aquos R9 Pro
- 6.7" PRO IGZO LTPO OLED
- Resolution: 1440x3120
- Refresh rate: 240 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Sharp Aquos R9 Pro
- 5000 mAh
- Wireless: supported, wattage unknown
Overall performance score
We compared Redmi K90 Ultra and Sharp Aquos R9 Pro, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Sharp Aquos R9 Pro by 79.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Sharp Aquos R9 Pro
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra notably outperforms the Sharp Aquos R9 Pro (92/100 vs 75/100).
display
In the "display" category, the Sharp Aquos R9 Pro is a bit better (99/100 vs 94/100).
camera
In the "camera" category, the Sharp Aquos R9 Pro significantly outperforms the Redmi K90 Ultra (81/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 66/100).
portability
In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 27/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Sharp Aquos R9 Pro?
The Sharp Aquos R9 Pro edges out the Redmi K90 Ultra by just 3 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Sharp Aquos R9 Pro?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Sharp Aquos R9 Pro — 76/100.
Which has the better camera: the Redmi K90 Ultra or the Sharp Aquos R9 Pro?
The Sharp Aquos R9 Pro leads on camera score (81/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the Sharp Aquos R9 Pro?
The Redmi K90 Ultra leads on performance (92/100 vs 75/100).
Should you choose the Redmi K90 Ultra over the Sharp Aquos R9 Pro?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Sharp Aquos R9 Pro is a better fit for active users, mobile photography enthusiasts.