Redmi K90 vs Redmi Note 9S
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi Note 9S (2020) runs on the Qualcomm Snapdragon 720G; launch prices were $401 and $200. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 39/100 (a 37-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5020); the main camera is 50 MP vs 48 MP; the Redmi K90 is faster in AnTuTu (3,088,357 vs 514,398); the Redmi K90 has NFC for contactless payments, the Redmi Note 9S doesn't.
Redmi K90
Redmi Note 9S
- Higher AnTuTu: 3088357 vs 514398
- Better Geekbench Single: 3041 vs 746
- Better Geekbench Multi: 9494 vs 1762
- Bigger battery: 7100 vs 5020 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Lighter: 206g vs 210g
- Higher performance (92/100 vs 41/100)
- Better camera (58/100 vs 34/100)
- Longer battery life (72/100 vs 43/100)
- Better display (82/100 vs 42/100)
- Better portability (55/100 vs 44/100)
- Cheaper at launch: $200 vs $401
- Overall rating 39/100
Comparing the Redmi K90 vs the Redmi Note 9S, the Redmi K90 scores 37 points higher (76/100 vs 39/100). In the "performance" category, the Redmi K90 leads (92/100 vs 41/100). In the "camera" category, the Redmi K90 leads (58/100 vs 34/100). In the "battery" category, the Redmi K90 leads (72/100 vs 43/100). Value score: Redmi K90 — 90/100, Redmi Note 9S — 40/100; 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 9S (92/100 vs 41/100). In the "display" category, the Redmi K90 significantly outperforms the Redmi Note 9S (82/100 vs 42/100). In the "camera" category, the Redmi K90 notably outperforms the Redmi Note 9S (58/100 vs 34/100). In the "battery" category, the Redmi K90 notably outperforms the Redmi Note 9S (72/100 vs 43/100). In the "portability" category, the Redmi K90 is a bit better (55/100 vs 44/100).
| Specification | Redmi K90 | Redmi Note 9S | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 720G | |
| AnTuTu | 3088357 | 514398 | |
| Geekbench Single | 3041 | 746 | |
| Geekbench Multi | 9494 | 1762 | |
| Display | 6.6" AMOLED | 6.7" IPS LCD | |
| Resolution | 2510x1156 | 2400x1080 | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 7100 mAh | 5020 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB | 64GB / 128GB | |
| OS | Android 16 | Android 10 | |
| Brightness (peak) | 3500 nits | 450 nits | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 165.8×76.7×8.8 mm | |
| Weight | 206 g | 210 g | |
| Launch price | $401 | $200 |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Redmi Note 9S
- Main: 48MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Redmi Note 9S
- 6.7" IPS LCD
- Resolution: 2400x1080
- Refresh rate: 60 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Redmi Note 9S
- 5020 mAh
- Wired: 18W
- No wireless charging
We compared Redmi K90 and Redmi Note 9S, covering their specs and all relevant benchmarks.
Redmi K90 leads Redmi Note 9S by 500.4% in our overall performance rating.
Launch price difference: $201. Redmi Note 9S was $201 cheaper at launch.
performance
In the "performance" category, the Redmi K90 significantly outperforms the Redmi Note 9S (92/100 vs 41/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Redmi Note 9S (82/100 vs 42/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Redmi Note 9S (58/100 vs 34/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Redmi Note 9S (72/100 vs 43/100).
portability
In the "portability" category, the Redmi K90 is a bit better (55/100 vs 44/100).
Which is better: the Redmi K90 or the Redmi Note 9S?
The Redmi K90 significantly outperforms the Redmi Note 9S by 37 points (76/100 vs 39/100).
What is the rating of the Redmi K90 and the Redmi Note 9S?
The Redmi K90 has a MobileRank rating of 76/100, the Redmi Note 9S — 39/100.
Which has the better camera: the Redmi K90 or the Redmi Note 9S?
The Redmi K90 leads on camera score (58/100 vs 34/100).
Which is more powerful: the Redmi K90 or the Redmi Note 9S?
The Redmi K90 leads on performance (92/100 vs 41/100).
Should you choose the Redmi K90 over the Redmi Note 9S?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers. The Redmi Note 9S is a better fit for everyday use.