OnePlus 9 vs Redmi K90
The OnePlus 9 (2021) runs on the Qualcomm Snapdragon 888, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $729 and $401. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 60/100 (a 16-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4500); the main camera is 48 MP vs 50 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 1,157,244).
Profile comparison
Category scores
OnePlus 9
Redmi K90
What makes OnePlus 9 better?
- Lighter: 192g vs 206g
- Better portability (56/100 vs 55/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 1157244
- Better Geekbench Single: 3013 vs 1500
- Better Geekbench Multi: 9287 vs 3537
- Bigger battery: 7100 vs 4500 mAh
- Faster charging: 100W vs 65W
- Better main camera: 50MP vs 48MP
- Cheaper at launch: $401 vs $729
- Higher performance (91/100 vs 64/100)
- Better camera (58/100 vs 51/100)
- Longer battery life (72/100 vs 50/100)
- Better display (82/100 vs 80/100)
Comparison verdict
Comparing the OnePlus 9 vs the Redmi K90, the Redmi K90 scores 16 points higher (76/100 vs 60/100). In the "performance" category, the Redmi K90 leads (91/100 vs 64/100). In the "battery" category, the Redmi K90 leads (72/100 vs 50/100). Value score: OnePlus 9 — 34/100, Redmi K90 — 80/100; 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 OnePlus 9 (91/100 vs 64/100). In the "display" category, the Redmi K90 and the OnePlus 9 are nearly equal (82/100 vs 80/100). In the "camera" category, the Redmi K90 is a bit better (58/100 vs 51/100). In the "battery" category, the Redmi K90 notably outperforms the OnePlus 9 (72/100 vs 50/100). In the "portability" category, the OnePlus 9 and the Redmi K90 are nearly equal (56/100 vs 55/100).
Specs comparison
| Specification | OnePlus 9 | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1157244 | 3077585 | |
| Geekbench Single | 1500 | 3013 | |
| Geekbench Multi | 3537 | 9287 | |
| Display | 6.5" AMOLED | 6.6" AMOLED | |
| Resolution | 2400x1080 | 2510x1156 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4500 mAh | 7100 mAh | |
| Charging | 65W | 100W | |
| Wireless charging | 15W | 0W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 11 | Android 16 | |
| Brightness (peak) | 1100 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 160.0×74.2×8.7 mm | 157.5×75.3×8.0 mm | |
| Weight | 192 g | 206 g | |
| Launch price | $729 | $401 |
Camera comparison
OnePlus 9
- Main: 48MP f/1.8
- Ultrawide: 50MP
- Front: 16MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
OnePlus 9
- 6.5" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
OnePlus 9
- 4500 mAh
- Wired: 65W
- Wireless: 15W
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared OnePlus 9 and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads OnePlus 9 by 62.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $328. Redmi K90 was $328 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 notably outperforms the OnePlus 9 (91/100 vs 64/100).
display
In the "display" category, the Redmi K90 and the OnePlus 9 are nearly equal (82/100 vs 80/100).
camera
In the "camera" category, the Redmi K90 is a bit better (58/100 vs 51/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the OnePlus 9 (72/100 vs 50/100).
portability
In the "portability" category, the OnePlus 9 and the Redmi K90 are nearly equal (56/100 vs 55/100).
Frequently asked questions
Which is better: the OnePlus 9 or the Redmi K90?
The Redmi K90 is noticeably better than the OnePlus 9 — the overall rating gap is 16 points.
What is the rating of the OnePlus 9 and the Redmi K90?
The OnePlus 9 has a MobileRank rating of 60/100, the Redmi K90 — 76/100.
Which has the better camera: the OnePlus 9 or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 51/100).
Which is more powerful: the OnePlus 9 or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 64/100).
Should you choose the OnePlus 9 over the Redmi K90?
The OnePlus 9 is a better fit for active users. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.