Poco C40 vs Redmi K90
The Poco C40 (2022) runs on the JLQ, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 68/100 vs 11/100 (a 57-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 6000); the main camera is 13 MP vs 50 MP; the Redmi K90 is thinner (8.0mm vs 9.2mm).
Poco C40
Redmi K90
- Lighter: 204g vs 206g
- Better design/ergonomics (45/100 vs 42/100)
- Bigger battery: 7100 vs 6000 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 13MP
- Higher performance (69/100 vs 0/100)
- Better camera (53/100 vs 0/100)
- Longer battery life (71/100 vs 45/100)
- Better display (100/100 vs 0/100)
- Better value for money (82/100 vs 55/100)
Comparing the Poco C40 vs the Redmi K90, the Redmi K90 scores 57 points higher (68/100 vs 11/100). In the "performance" category, the Redmi K90 leads (69/100 vs 0/100). In the "camera" category, the Redmi K90 leads (53/100 vs 0/100). In the "battery" category, the Redmi K90 leads (71/100 vs 45/100). In the "value for money" category, the Redmi K90 leads (82/100 vs 55/100). In the "performance" category, the Redmi K90 significantly outperforms the Poco C40 (69/100 vs 0/100). In the "display" category, the Redmi K90 significantly outperforms the Poco C40 (100/100 vs 0/100). In the "camera" category, the Redmi K90 significantly outperforms the Poco C40 (53/100 vs 0/100). In the "battery" category, the Redmi K90 notably outperforms the Poco C40 (71/100 vs 45/100). In the "design" category, the Poco C40 and the Redmi K90 are nearly equal (45/100 vs 42/100). In the "value for money" category, the Redmi K90 notably outperforms the Poco C40 (82/100 vs 55/100).
| Specification | Poco C40 | Redmi K90 | |
|---|---|---|---|
| Processor | JLQ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 3088357 | |
| Geekbench Single | — | 3050 | |
| Geekbench Multi | — | 9300 | |
| Display | 6.7" IPS LCD | 6.6" AMOLED | |
| Resolution | 720x1650 | 2510x1156 | |
| Refresh rate | — | 120 Hz | |
| Battery | 6000 mAh | 7100 mAh | |
| Charging | 18W | 100W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 20 MP | |
| RAM | 3GB / 4GB | 12GB / 16GB | |
| Storage | 32GB / 64GB | 256GB / 512GB | |
| OS | Android 11, MIUI 13 for POCO | Android 16 | |
| Brightness (peak) | 400 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 169.6×76.6×9.2 mm | 157.5×75.3×8.0 mm | |
| Weight | 204 g | 206 g | |
| Price | — | $401 |
Poco C40
- Main: 13MP f/f/2.2
- Front: 5MP
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Poco C40
- 6.7" IPS LCD
- Resolution: 720x1650
- Refresh rate: —
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Poco C40
- 6000 mAh
- Wired: 18W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Poco C40
Price unknownperformance
In the "performance" category, the Redmi K90 significantly outperforms the Poco C40 (69/100 vs 0/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Poco C40 (100/100 vs 0/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Poco C40 (53/100 vs 0/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Poco C40 (71/100 vs 45/100).
design
In the "design" category, the Poco C40 and the Redmi K90 are nearly equal (45/100 vs 42/100).
value for money
In the "value for money" category, the Redmi K90 notably outperforms the Poco C40 (82/100 vs 55/100).
Which is better: the Poco C40 or the Redmi K90?
The Redmi K90 significantly outperforms the Poco C40 by 57 points (68/100 vs 11/100).
What is the rating of the Poco C40 and the Redmi K90?
The Poco C40 has a MobileRank rating of 11/100, the Redmi K90 — 68/100.
Which has the better camera: the Poco C40 or the Redmi K90?
The Redmi K90 leads on camera score (53/100 vs 0/100).
Which is more powerful: the Poco C40 or the Redmi K90?
The Redmi K90 leads on performance (69/100 vs 0/100).
Should you choose the Poco C40 over the Redmi K90?
The Poco C40 is a better fit for everyday use. The Redmi K90 is a better fit for active users, budget-conscious buyers.