Redmi K40S vs Xiaomi 15S Pro
The Redmi K40S (2022) runs on the Qualcomm Snapdragon 870 5G, while the Xiaomi 15S Pro (2025) runs on the Xiaomi XRING O1. By overall MobileRank rating, the Xiaomi 15S Pro leads — 84/100 vs 54/100 (a 30-point difference). Key differences: the Xiaomi 15S Pro has the bigger battery (6100 mAh vs 4500); the main camera is 48 MP vs 50 MP; the Xiaomi 15S Pro is faster in AnTuTu (2,998,904 vs 1,010,069).
Redmi K40S
Xiaomi 15S Pro
- Overall rating 54/100
- Higher AnTuTu: 2998904 vs 1010069
- Better Geekbench Single: 2746 vs 1298
- Better Geekbench Multi: 8431 vs 3520
- Bigger battery: 6100 vs 4500 mAh
- Faster charging: 90W vs 67W
- Better main camera: 50MP vs 48MP
- Higher performance (89/100 vs 61/100)
- Better camera (78/100 vs 36/100)
- Longer battery life (77/100 vs 42/100)
- Better display (90/100 vs 79/100)
Comparing the Redmi K40S vs the Xiaomi 15S Pro, the Xiaomi 15S Pro scores 30 points higher (84/100 vs 54/100). In the "performance" category, the Xiaomi 15S Pro leads (89/100 vs 61/100). In the "camera" category, the Xiaomi 15S Pro leads (78/100 vs 36/100). In the "battery" category, the Xiaomi 15S Pro leads (77/100 vs 42/100). In the "performance" category, the Xiaomi 15S Pro notably outperforms the Redmi K40S (89/100 vs 61/100). In the "display" category, the Xiaomi 15S Pro is a bit better (90/100 vs 79/100). In the "camera" category, the Xiaomi 15S Pro significantly outperforms the Redmi K40S (78/100 vs 36/100). In the "battery" category, the Xiaomi 15S Pro significantly outperforms the Redmi K40S (77/100 vs 42/100).
| Specification | Redmi K40S | Xiaomi 15S Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 870 5G | Xiaomi XRING O1 | |
| AnTuTu | 1010069 | 2998904 | |
| Geekbench Single | 1298 | 2746 | |
| Geekbench Multi | 3520 | 8431 | |
| Display | 6.7" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1080x2400 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4500 mAh | 6100 mAh | |
| Charging | 67W | 90W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 6GB / 8GB / 12GB | 16GB | |
| Storage | 128GB / 256GB | 512GB / 1TB | |
| OS | Android 12, MIUI 13 | Android 15 | |
| Brightness (peak) | 1300 nits | — | |
| NFC | yes | — | |
| Dimensions | 163.2×76.0×7.7 mm | — | |
| Weight | 195 g | — | |
| Price | — | $760 |
Redmi K40S
- Main: 48MP f/f/1.8
- Ultrawide: 8MP
- Front: 20MP
Xiaomi 15S Pro
- Main: 50MP f/f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K40S
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Xiaomi 15S Pro
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Redmi K40S
- 4500 mAh
- Wired: 67W
- No wireless charging
Xiaomi 15S Pro
- 6100 mAh
- Wired: 90W
- Wireless charging: no data
We compared Redmi K40S and Xiaomi 15S Pro, covering their specs and all relevant benchmarks.
Xiaomi 15S Pro leads Redmi K40S by 66.3% in our overall performance rating.
Redmi K40S
Price unknownperformance
In the "performance" category, the Xiaomi 15S Pro notably outperforms the Redmi K40S (89/100 vs 61/100).
display
In the "display" category, the Xiaomi 15S Pro is a bit better (90/100 vs 79/100).
camera
In the "camera" category, the Xiaomi 15S Pro significantly outperforms the Redmi K40S (78/100 vs 36/100).
battery
In the "battery" category, the Xiaomi 15S Pro significantly outperforms the Redmi K40S (77/100 vs 42/100).
Which is better: the Redmi K40S or the Xiaomi 15S Pro?
The Xiaomi 15S Pro significantly outperforms the Redmi K40S by 30 points (84/100 vs 54/100).
What is the rating of the Redmi K40S and the Xiaomi 15S Pro?
The Redmi K40S has a MobileRank rating of 54/100, the Xiaomi 15S Pro — 84/100.
Which has the better camera: the Redmi K40S or the Xiaomi 15S Pro?
The Xiaomi 15S Pro leads on camera score (78/100 vs 36/100).
Which is more powerful: the Redmi K40S or the Xiaomi 15S Pro?
The Xiaomi 15S Pro leads on performance (89/100 vs 61/100).
Should you choose the Redmi K40S over the Xiaomi 15S Pro?
The Redmi K40S is a better fit for active users. The Xiaomi 15S Pro is a better fit for gamers and power users, those who care about battery life.