Redmi K90 Ultra vs Xiaomi Mi 9 Lite
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mi 9 Lite (2019) runs on the Qualcomm Snapdragon 710; launch prices were $420 and $280. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 36/100 (a 37-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4030); the main camera is 50 MP vs 48 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 417,439); the Xiaomi Mi 9 Lite is noticeably lighter (179g vs 227g).
Redmi K90 Ultra
Xiaomi Mi 9 Lite
- Higher AnTuTu: 3233695 vs 417439
- Better Geekbench Single: 3041 vs 431
- Better Geekbench Multi: 9494 vs 1320
- Bigger battery: 8550 vs 4030 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (92/100 vs 31/100)
- Longer battery life (78/100 vs 22/100)
- Better display (94/100 vs 56/100)
- Lighter: 179g vs 227g
- Cheaper at launch: $280 vs $420
- Better camera (39/100 vs 37/100)
- Better portability (64/100 vs 40/100)
Comparing the Redmi K90 Ultra vs the Xiaomi Mi 9 Lite, the Redmi K90 Ultra scores 37 points higher (73/100 vs 36/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 31/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 22/100). Value score: Redmi K90 Ultra — 82/100, Xiaomi Mi 9 Lite — 18/100; 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 significantly outperforms the Xiaomi Mi 9 Lite (92/100 vs 31/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Xiaomi Mi 9 Lite (94/100 vs 56/100). In the "camera" category, the Xiaomi Mi 9 Lite and the Redmi K90 Ultra are nearly equal (39/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Xiaomi Mi 9 Lite (78/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9 Lite notably outperforms the Redmi K90 Ultra (64/100 vs 40/100).
| Specification | Redmi K90 Ultra | Xiaomi Mi 9 Lite | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 710 | |
| AnTuTu | 3233695 | 417439 | |
| Geekbench Single | 3041 | 431 | |
| Geekbench Multi | 9494 | 1320 | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1280x2772 | 2340x1080 | |
| Refresh rate | 165 Hz | 60 Hz | |
| Battery | 8550 mAh | 4030 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 6GB | |
| Storage | 256GB / 512GB | 64GB / 128GB | |
| OS | Android 16 | Android 9 | |
| Brightness (peak) | 3500 nits | 600 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 156.8×74.5×8.7 mm | |
| Weight | 227 g | 179 g | |
| Launch price | $420 | $280 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Xiaomi Mi 9 Lite
- Main: 48MP f/2.0
- Ultrawide: 8MP
- Front: 32MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Xiaomi Mi 9 Lite
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mi 9 Lite
- 4030 mAh
- Wired: 18W
- No wireless charging
We compared Redmi K90 Ultra and Xiaomi Mi 9 Lite, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Xiaomi Mi 9 Lite by 674.7% in our overall performance rating.
Launch price difference: $140. Xiaomi Mi 9 Lite was $140 cheaper at launch.
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Xiaomi Mi 9 Lite (92/100 vs 31/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Xiaomi Mi 9 Lite (94/100 vs 56/100).
camera
In the "camera" category, the Xiaomi Mi 9 Lite and the Redmi K90 Ultra are nearly equal (39/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Xiaomi Mi 9 Lite (78/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9 Lite notably outperforms the Redmi K90 Ultra (64/100 vs 40/100).
Which is better: the Redmi K90 Ultra or the Xiaomi Mi 9 Lite?
The Redmi K90 Ultra significantly outperforms the Xiaomi Mi 9 Lite by 37 points (73/100 vs 36/100).
What is the rating of the Redmi K90 Ultra and the Xiaomi Mi 9 Lite?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Xiaomi Mi 9 Lite — 36/100.
Which is more powerful: the Redmi K90 Ultra or the Xiaomi Mi 9 Lite?
The Redmi K90 Ultra leads on performance (92/100 vs 31/100).
Should you choose the Redmi K90 Ultra over the Xiaomi Mi 9 Lite?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Xiaomi Mi 9 Lite is a better fit for everyday use.