Redmi K90 Ultra vs Samsung Galaxy S25 Slim
Comparing the Redmi K90 Ultra (2026) and the Samsung Galaxy S25 Slim (2024) on specs and benchmarks. By overall MobileRank rating, the Redmi K90 Ultra leads — 61/100 vs 37/100 (a 24-point difference). Key differences: the main camera is 50 MP vs 200 MP.
Redmi K90 Ultra
Samsung Galaxy S25 Slim
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (65/100 vs 0/100)
- Longer battery life (77/100 vs 0/100)
- Better value for money (81/100 vs 55/100)
- Better main camera: 200MP vs 50MP
- Better camera (81/100 vs 32/100)
- Better design/ergonomics (50/100 vs 16/100)
Comparing the Redmi K90 Ultra vs the Samsung Galaxy S25 Slim, the Redmi K90 Ultra scores 24 points higher (61/100 vs 37/100). In the "performance" category, the Redmi K90 Ultra leads (65/100 vs 0/100). In the "camera" category, the Samsung Galaxy S25 Slim leads (81/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra leads (77/100 vs 0/100). In the "value for money" category, the Redmi K90 Ultra leads (81/100 vs 55/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S25 Slim (65/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Samsung Galaxy S25 Slim significantly outperforms the Redmi K90 Ultra (81/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S25 Slim (77/100 vs 0/100). In the "design" category, the Samsung Galaxy S25 Slim significantly outperforms the Redmi K90 Ultra (50/100 vs 16/100). In the "value for money" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy S25 Slim (81/100 vs 55/100).
| Specification | Redmi K90 Ultra | Samsung Galaxy S25 Slim | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | — | |
| AnTuTu | 2760000 | — | |
| Geekbench Single | 3050 | — | |
| Geekbench Multi | 9300 | — | |
| Display | 6.8" AMOLED | 6.7" OLED | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | — | |
| Charging | 100W | — | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 10 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB / 512GB | |
| OS | Android 16 | Android 15, One UI 7 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 162.9×77.9×8.2 mm | — | |
| Weight | 227 g | — | |
| Price | $420 | — |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy S25 Slim
- Main: 200MP
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 10MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Samsung Galaxy S25 Slim
- 6.7" OLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy S25 Slim
- —
- No wireless charging
Samsung Galaxy S25 Slim
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S25 Slim (65/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Samsung Galaxy S25 Slim significantly outperforms the Redmi K90 Ultra (81/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S25 Slim (77/100 vs 0/100).
design
In the "design" category, the Samsung Galaxy S25 Slim significantly outperforms the Redmi K90 Ultra (50/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy S25 Slim (81/100 vs 55/100).
Which is better: the Redmi K90 Ultra or the Samsung Galaxy S25 Slim?
The Redmi K90 Ultra significantly outperforms the Samsung Galaxy S25 Slim by 24 points (61/100 vs 37/100).
What is the rating of the Redmi K90 Ultra and the Samsung Galaxy S25 Slim?
The Redmi K90 Ultra has a MobileRank rating of 61/100, the Samsung Galaxy S25 Slim — 37/100.
Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy S25 Slim?
The Samsung Galaxy S25 Slim leads on camera score (81/100 vs 32/100).
Which is more powerful: the Redmi K90 Ultra or the Samsung Galaxy S25 Slim?
The Redmi K90 Ultra leads on performance (65/100 vs 0/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy S25 Slim?
The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy S25 Slim is a better fit for mobile photography enthusiasts.