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 (3,077,585 vs 517,460); the Redmi K90 has NFC for contactless payments, the Redmi Note 9S doesn't.
Profile comparison
Category scores
Redmi K90
Redmi Note 9S
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 517460
- Better Geekbench Single: 3013 vs 746
- Better Geekbench Multi: 9287 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 (91/100 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)
What makes Redmi Note 9S better?
- Cheaper at launch: $200 vs $401
- Overall rating 39/100
Comparison verdict
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 (91/100 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 — 80/100, Redmi Note 9S — 38/100; 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 Redmi Note 9S (91/100 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).
Specs comparison
| Specification | Redmi K90 | Redmi Note 9S | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 720G | |
| AnTuTu | 3077585 | 517460 | |
| Geekbench Single | 3013 | 746 | |
| Geekbench Multi | 9287 | 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 |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Redmi Note 9S
- Main: 48MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Redmi Note 9S
- 6.7" IPS LCD
- Resolution: 2400x1080
- Refresh rate: 60 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Redmi Note 9S
- 5020 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared Redmi K90 and Redmi Note 9S, covering their specs and all relevant benchmarks.
Redmi K90 leads Redmi Note 9S by 494.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $201. Redmi Note 9S was $201 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Redmi Note 9S (91/100 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).
Frequently asked questions
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 (91/100 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.