Redmi K90 vs Samsung Galaxy A57
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A57 (2026) runs on the Samsung Exynos 1680; estimated prices are $401 and $350. By overall MobileRank rating, the Redmi K90 leads — 68/100 vs 38/100 (a 30-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5000); the Redmi K90 is faster in AnTuTu (3,088,357 vs 1,357,223); the Samsung Galaxy A57 is noticeably lighter (183g vs 206g).
Redmi K90
Samsung Galaxy A57
- Higher AnTuTu: 3088357 vs 1357223
- Better Geekbench Single: 3050 vs 1389
- Better Geekbench Multi: 9300 vs 4453
- Bigger battery: 7100 vs 5000 mAh
- Faster charging: 100W vs 25W
- Higher performance (69/100 vs 16/100)
- Better camera (53/100 vs 29/100)
- Longer battery life (71/100 vs 37/100)
- Lighter: 183g vs 206g
- Cheaper: $350 vs $401
- Better design/ergonomics (71/100 vs 42/100)
- Better value for money (86/100 vs 82/100)
Comparing the Redmi K90 vs the Samsung Galaxy A57, the Redmi K90 scores 30 points higher (68/100 vs 38/100). In the "performance" category, the Redmi K90 leads (69/100 vs 16/100). In the "camera" category, the Redmi K90 leads (53/100 vs 29/100). In the "battery" category, the Redmi K90 leads (71/100 vs 37/100). In the "performance" category, the Redmi K90 significantly outperforms the Samsung Galaxy A57 (69/100 vs 16/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K90 notably outperforms the Samsung Galaxy A57 (53/100 vs 29/100). In the "battery" category, the Redmi K90 significantly outperforms the Samsung Galaxy A57 (71/100 vs 37/100). In the "design" category, the Samsung Galaxy A57 notably outperforms the Redmi K90 (71/100 vs 42/100). In the "value for money" category, the Samsung Galaxy A57 and the Redmi K90 are nearly equal (86/100 vs 82/100).
| Specification | Redmi K90 | Samsung Galaxy A57 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Samsung Exynos 1680 | |
| AnTuTu | 3088357 | 1357223 | |
| Geekbench Single | 3050 | 1389 | |
| Geekbench Multi | 9300 | 4453 | |
| Display | 6.6" AMOLED | 6.7" Super AMOLED | |
| Resolution | 2510x1156 | 2340x1080 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7100 mAh | 5000 mAh | |
| Charging | 100W | 25W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 13 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | 1900 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 157.5×75.3×8.0 mm | 161.5×76.8×6.9 mm | |
| Weight | 206 g | 183 g | |
| Price | $401 | $350 |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Samsung Galaxy A57
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 13MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Samsung Galaxy A57
- 6.7" Super AMOLED
- Resolution: 2340x1080
- Refresh rate: 120 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy A57
- 5000 mAh
- Wired: 25W
- No wireless charging
We compared Redmi K90 and Samsung Galaxy A57, covering their specs and all relevant benchmarks.
Redmi K90 leads Samsung Galaxy A57 by 127.5% in our overall performance rating.
Price difference: $51. Samsung Galaxy A57 is cheaper by $51.
performance
In the "performance" category, the Redmi K90 significantly outperforms the Samsung Galaxy A57 (69/100 vs 16/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Redmi K90 notably outperforms the Samsung Galaxy A57 (53/100 vs 29/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Samsung Galaxy A57 (71/100 vs 37/100).
design
In the "design" category, the Samsung Galaxy A57 notably outperforms the Redmi K90 (71/100 vs 42/100).
value for money
In the "value for money" category, the Samsung Galaxy A57 and the Redmi K90 are nearly equal (86/100 vs 82/100).
Which is better: the Redmi K90 or the Samsung Galaxy A57?
The Redmi K90 significantly outperforms the Samsung Galaxy A57 by 30 points (68/100 vs 38/100).
What is the rating of the Redmi K90 and the Samsung Galaxy A57?
The Redmi K90 has a MobileRank rating of 68/100, the Samsung Galaxy A57 — 38/100.
Which has the better camera: the Redmi K90 or the Samsung Galaxy A57?
The Redmi K90 leads on camera score (53/100 vs 29/100).
Which is more powerful: the Redmi K90 or the Samsung Galaxy A57?
The Redmi K90 leads on performance (69/100 vs 16/100).
Should you choose the Redmi K90 over the Samsung Galaxy A57?
The Redmi K90 is a better fit for active users, budget-conscious buyers. The Samsung Galaxy A57 is a better fit for budget-conscious buyers.