Redmi K90 vs Xiaomi Mi 9
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mi 9 (2019) runs on the Qualcomm Snapdragon 855; launch prices were $401 and $400. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 47/100 (a 29-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 3300); the main camera is 50 MP vs 48 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 824,513); the Xiaomi Mi 9 is noticeably lighter (173g vs 206g).
Profile comparison
Category scores
Redmi K90
Xiaomi Mi 9
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 824513
- Better Geekbench Single: 3013 vs 968
- Better Geekbench Multi: 9287 vs 2731
- Bigger battery: 7100 vs 3300 mAh
- Faster charging: 100W vs 27W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (91/100 vs 54/100)
- Better camera (58/100 vs 44/100)
- Longer battery life (72/100 vs 22/100)
- Better display (82/100 vs 56/100)
What makes Xiaomi Mi 9 better?
- Lighter: 173g vs 206g
- Cheaper at launch: $400 vs $401
- Better portability (79/100 vs 55/100)
Comparison verdict
Comparing the Redmi K90 vs the Xiaomi Mi 9, the Redmi K90 scores 29 points higher (76/100 vs 47/100). In the "performance" category, the Redmi K90 leads (91/100 vs 54/100). In the "camera" category, the Redmi K90 leads (58/100 vs 44/100). In the "battery" category, the Redmi K90 leads (72/100 vs 22/100). Value score: Redmi K90 — 80/100, Xiaomi Mi 9 — 22/100; 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 significantly outperforms the Xiaomi Mi 9 (91/100 vs 54/100). In the "display" category, the Redmi K90 notably outperforms the Xiaomi Mi 9 (82/100 vs 56/100). In the "camera" category, the Redmi K90 is a bit better (58/100 vs 44/100). In the "battery" category, the Redmi K90 significantly outperforms the Xiaomi Mi 9 (72/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9 notably outperforms the Redmi K90 (79/100 vs 55/100).
Specs comparison
| Specification | Redmi K90 | Xiaomi Mi 9 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855 | |
| AnTuTu | 3077585 | 824513 | |
| Geekbench Single | 3013 | 968 | |
| Geekbench Multi | 9287 | 2731 | |
| Display | 6.6" AMOLED | 6.4" AMOLED | |
| Resolution | 2510x1156 | 2340x1080 | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 7100 mAh | 3300 mAh | |
| Charging | 100W | 27W | |
| Wireless charging | 0W | 20W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 16 MP | |
| Telephoto | 50 MP | 12 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 64GB / 128GB | |
| OS | Android 16 | Android 9 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 157.5×74.7×7.6 mm | |
| Weight | 206 g | 173 g | |
| Launch price | $401 | $400 |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Xiaomi Mi 9
- Main: 48MP f/1.75
- Ultrawide: 16MP
- Telephoto: 12MP
- Front: 20MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Xiaomi Mi 9
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mi 9
- 3300 mAh
- Wired: 27W
- Wireless: 20W
Overall performance score
We compared Redmi K90 and Xiaomi Mi 9, covering their specs and all relevant benchmarks.
Redmi K90 leads Xiaomi Mi 9 by 273.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $1. Xiaomi Mi 9 was $1 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Xiaomi Mi 9 (91/100 vs 54/100).
display
In the "display" category, the Redmi K90 notably outperforms the Xiaomi Mi 9 (82/100 vs 56/100).
camera
In the "camera" category, the Redmi K90 is a bit better (58/100 vs 44/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Xiaomi Mi 9 (72/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9 notably outperforms the Redmi K90 (79/100 vs 55/100).
Frequently asked questions
Which is better: the Redmi K90 or the Xiaomi Mi 9?
The Redmi K90 significantly outperforms the Xiaomi Mi 9 by 29 points (76/100 vs 47/100).
What is the rating of the Redmi K90 and the Xiaomi Mi 9?
The Redmi K90 has a MobileRank rating of 76/100, the Xiaomi Mi 9 — 47/100.
Which has the better camera: the Redmi K90 or the Xiaomi Mi 9?
The Redmi K90 leads on camera score (58/100 vs 44/100).
Which is more powerful: the Redmi K90 or the Xiaomi Mi 9?
The Redmi K90 leads on performance (91/100 vs 54/100).
Should you choose the Redmi K90 over the Xiaomi Mi 9?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.