Redmi K90 vs Redmi Note 4X
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi Note 4X (2017) runs on the Qualcomm Snapdragon 625; launch prices were $401 and $160. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 22/100 (a 54-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4100); the main camera is 50 MP vs 13 MP; the Redmi K90 is faster in AnTuTu (3,086,235 vs 218,879); the Redmi K90 has NFC for contactless payments, the Redmi Note 4X doesn't; the Redmi Note 4X is noticeably lighter (165g vs 206g).
Redmi K90
Redmi Note 4X
- Higher AnTuTu: 3086235 vs 218879
- Better Geekbench Single: 3041 vs 189
- Better Geekbench Multi: 9494 vs 862
- Bigger battery: 7100 vs 4100 mAh
- Better main camera: 50MP vs 13MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (92/100 vs 14/100)
- Better camera (58/100 vs 10/100)
- Longer battery life (72/100 vs 35/100)
- Better display (82/100 vs 32/100)
- Lighter: 165g vs 206g
- Cheaper at launch: $160 vs $401
- Better portability (74/100 vs 55/100)
Comparing the Redmi K90 vs the Redmi Note 4X, the Redmi K90 scores 54 points higher (76/100 vs 22/100). In the "performance" category, the Redmi K90 leads (92/100 vs 14/100). In the "camera" category, the Redmi K90 leads (58/100 vs 10/100). In the "battery" category, the Redmi K90 leads (72/100 vs 35/100). Value score: Redmi K90 — 90/100, Redmi Note 4X — 16/100; 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 significantly outperforms the Redmi Note 4X (92/100 vs 14/100). In the "display" category, the Redmi K90 significantly outperforms the Redmi Note 4X (82/100 vs 32/100). In the "camera" category, the Redmi K90 significantly outperforms the Redmi Note 4X (58/100 vs 10/100). In the "battery" category, the Redmi K90 significantly outperforms the Redmi Note 4X (72/100 vs 35/100). In the "portability" category, the Redmi Note 4X notably outperforms the Redmi K90 (74/100 vs 55/100).
| Specification | Redmi K90 | Redmi Note 4X | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 625 | |
| AnTuTu | 3086235 | 218879 | |
| Geekbench Single | 3041 | 189 | |
| Geekbench Multi | 9494 | 862 | |
| Display | 6.6" AMOLED | 5.5" IPS LCD | |
| Resolution | 2510x1156 | — | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 7100 mAh | 4100 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 13 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 5 MP | |
| RAM | 12GB / 16GB | 3GB / 4GB | |
| Storage | 256GB / 512GB | 32GB / 64GB | |
| OS | Android 16 | — | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 151.0×76.0×8.5 mm | |
| Weight | 206 g | 165 g | |
| Launch price | $401 | $160 |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Redmi Note 4X
- Main: 13MP
- Front: 5MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Redmi Note 4X
- 5.5" IPS LCD
- Refresh rate: 60 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Redmi Note 4X
- 4100 mAh
- Wireless charging: no data
We compared Redmi K90 and Redmi Note 4X, covering their specs and all relevant benchmarks.
Redmi K90 leads Redmi Note 4X by 1310.0% in our overall performance rating.
Launch price difference: $241. Redmi Note 4X was $241 cheaper at launch.
performance
In the "performance" category, the Redmi K90 significantly outperforms the Redmi Note 4X (92/100 vs 14/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Redmi Note 4X (82/100 vs 32/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Redmi Note 4X (58/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Redmi Note 4X (72/100 vs 35/100).
portability
In the "portability" category, the Redmi Note 4X notably outperforms the Redmi K90 (74/100 vs 55/100).
Which is better: the Redmi K90 or the Redmi Note 4X?
The Redmi K90 significantly outperforms the Redmi Note 4X by 54 points (76/100 vs 22/100).
What is the rating of the Redmi K90 and the Redmi Note 4X?
The Redmi K90 has a MobileRank rating of 76/100, the Redmi Note 4X — 22/100.
Which has the better camera: the Redmi K90 or the Redmi Note 4X?
The Redmi K90 leads on camera score (58/100 vs 10/100).
Which is more powerful: the Redmi K90 or the Redmi Note 4X?
The Redmi K90 leads on performance (92/100 vs 14/100).
Should you choose the Redmi K90 over the Redmi Note 4X?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers. The Redmi Note 4X is a better fit for everyday use.