Redmi K90 vs Sharp Aquos R9
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Sharp Aquos R9 (2024) runs on the Qualcomm Snapdragon 7+ Gen 3; launch prices were $401 and $599. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 68/100 (a 8-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5000); the Redmi K90 is faster in AnTuTu (3,077,585 vs 1,660,924).
Profile comparison
Category scores
Redmi K90
Sharp Aquos R9
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 1660924
- Better Geekbench Single: 3013 vs 1860
- Better Geekbench Multi: 9287 vs 5045
- Bigger battery: 7100 vs 5000 mAh
- Cheaper at launch: $401 vs $599
- Higher performance (91/100 vs 74/100)
- Longer battery life (72/100 vs 52/100)
- Better portability (55/100 vs 52/100)
What makes Sharp Aquos R9 better?
- Higher refresh rate: 240Hz vs 120Hz
- Lighter: 195g vs 206g
- Better camera (60/100 vs 58/100)
- Better display (90/100 vs 82/100)
Comparison verdict
Comparing the Redmi K90 vs the Sharp Aquos R9, the Redmi K90 scores 8 points higher (76/100 vs 68/100). In the "performance" category, the Redmi K90 leads (91/100 vs 74/100). In the "battery" category, the Redmi K90 leads (72/100 vs 52/100). Value score: Redmi K90 — 80/100, Sharp Aquos R9 — 50/100; 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 notably outperforms the Sharp Aquos R9 (91/100 vs 74/100). In the "display" category, the Sharp Aquos R9 is a bit better (90/100 vs 82/100). In the "camera" category, the Sharp Aquos R9 and the Redmi K90 are nearly equal (60/100 vs 58/100). In the "battery" category, the Redmi K90 notably outperforms the Sharp Aquos R9 (72/100 vs 52/100). In the "portability" category, the Redmi K90 and the Sharp Aquos R9 are nearly equal (55/100 vs 52/100).
Specs comparison
| Specification | Redmi K90 | Sharp Aquos R9 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 7+ Gen 3 | |
| AnTuTu | 3077585 | 1660924 | |
| Geekbench Single | 3013 | 1860 | |
| Geekbench Multi | 9287 | 5045 | |
| Display | 6.6" AMOLED | 6.5" PRO IGZO LTPO OLED | |
| Resolution | 2510x1156 | 1080x2340 | |
| Refresh rate | 120 Hz | 240 Hz | |
| Battery | 7100 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 50 MP | |
| RAM | 12GB / 16GB | 12GB | |
| Storage | 256GB / 512GB | 256GB | |
| OS | Android 16 | Android 14 | |
| Brightness (peak) | 3500 nits | 2000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 157.5×75.3×8.0 mm | 156.0×75.0×8.9 mm | |
| Weight | 206 g | 195 g | |
| Launch price | $401 | $599 |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Sharp Aquos R9
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Front: 50MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Sharp Aquos R9
- 6.5" PRO IGZO LTPO OLED
- Resolution: 1080x2340
- Refresh rate: 240 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Sharp Aquos R9
- 5000 mAh
- No wireless charging
Overall performance score
We compared Redmi K90 and Sharp Aquos R9, covering their specs and all relevant benchmarks.
Redmi K90 leads Sharp Aquos R9 by 85.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $198. Redmi K90 was $198 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 notably outperforms the Sharp Aquos R9 (91/100 vs 74/100).
display
In the "display" category, the Sharp Aquos R9 is a bit better (90/100 vs 82/100).
camera
In the "camera" category, the Sharp Aquos R9 and the Redmi K90 are nearly equal (60/100 vs 58/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Sharp Aquos R9 (72/100 vs 52/100).
portability
In the "portability" category, the Redmi K90 and the Sharp Aquos R9 are nearly equal (55/100 vs 52/100).
Frequently asked questions
Which is better: the Redmi K90 or the Sharp Aquos R9?
The Redmi K90 edges out the Sharp Aquos R9 by just 8 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 and the Sharp Aquos R9?
The Redmi K90 has a MobileRank rating of 76/100, the Sharp Aquos R9 — 68/100.
Which is more powerful: the Redmi K90 or the Sharp Aquos R9?
The Redmi K90 leads on performance (91/100 vs 74/100).
Should you choose the Redmi K90 over the Sharp Aquos R9?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers. The Sharp Aquos R9 is a better fit for active users.