Redmi K90 vs Vivo S15
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo S15 (2022) runs on the Qualcomm Snapdragon 870 5G. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 57/100 (a 19-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Redmi K90 is faster in AnTuTu (3,088,357 vs 1,010,069).
Redmi K90
Vivo S15
- Higher AnTuTu: 3088357 vs 1010069
- Better Geekbench Single: 3041 vs 1298
- Better Geekbench Multi: 9494 vs 3520
- Bigger battery: 7100 vs 4500 mAh
- Faster charging: 100W vs 66W
- Higher performance (92/100 vs 61/100)
- Better camera (58/100 vs 48/100)
- Longer battery life (72/100 vs 42/100)
- Better display (82/100 vs 80/100)
- Better main camera: 64MP vs 50MP
- Lighter: 197g vs 206g
- Better portability (61/100 vs 55/100)
Comparing the Redmi K90 vs the Vivo S15, the Redmi K90 scores 19 points higher (76/100 vs 57/100). In the "performance" category, the Redmi K90 leads (92/100 vs 61/100). In the "camera" category, the Redmi K90 leads (58/100 vs 48/100). In the "battery" category, the Redmi K90 leads (72/100 vs 42/100). In the "performance" category, the Redmi K90 significantly outperforms the Vivo S15 (92/100 vs 61/100). In the "display" category, the Redmi K90 and the Vivo S15 are nearly equal (82/100 vs 80/100). In the "camera" category, the Redmi K90 is a bit better (58/100 vs 48/100). In the "battery" category, the Redmi K90 significantly outperforms the Vivo S15 (72/100 vs 42/100). In the "portability" category, the Vivo S15 is a bit better (61/100 vs 55/100).
| Specification | Redmi K90 | Vivo S15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 870 5G | |
| AnTuTu | 3088357 | 1010069 | |
| Geekbench Single | 3041 | 1298 | |
| Geekbench Multi | 9494 | 3520 | |
| Display | 6.6" AMOLED | 6.6" AMOLED | |
| Resolution | 2510x1156 | 1080x2400 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7100 mAh | 4500 mAh | |
| Charging | 100W | 66W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 12, Origin OS Ocean | |
| Brightness (peak) | 3500 nits | 1300 nits | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 161.1×74.3×8.0 mm | |
| Weight | 206 g | 197 g | |
| Price | $401 | — |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Vivo S15
- Main: 64MP f/f/1.9
- Ultrawide: 8MP
- Front: 32MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Vivo S15
- 6.6" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Vivo S15
- 4500 mAh
- Wired: 66W
- No wireless charging
We compared Redmi K90 and Vivo S15, covering their specs and all relevant benchmarks.
Redmi K90 leads Vivo S15 by 205.8% in our overall performance rating.
Vivo S15
Price unknownperformance
In the "performance" category, the Redmi K90 significantly outperforms the Vivo S15 (92/100 vs 61/100).
display
In the "display" category, the Redmi K90 and the Vivo S15 are nearly equal (82/100 vs 80/100).
camera
In the "camera" category, the Redmi K90 is a bit better (58/100 vs 48/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Vivo S15 (72/100 vs 42/100).
portability
In the "portability" category, the Vivo S15 is a bit better (61/100 vs 55/100).
Which is better: the Redmi K90 or the Vivo S15?
The Redmi K90 is noticeably better than the Vivo S15 — the overall rating gap is 19 points.
What is the rating of the Redmi K90 and the Vivo S15?
The Redmi K90 has a MobileRank rating of 76/100, the Vivo S15 — 57/100.
Which has the better camera: the Redmi K90 or the Vivo S15?
The Redmi K90 leads on camera score (58/100 vs 48/100).
Which is more powerful: the Redmi K90 or the Vivo S15?
The Redmi K90 leads on performance (92/100 vs 61/100).
Should you choose the Redmi K90 over the Vivo S15?
The Redmi K90 is a better fit for gamers and power users. The Vivo S15 is a better fit for active users.