Redmi K90 vs Xiaomi Mi 8
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mi 8 (2018) runs on the Qualcomm Snapdragon 845; estimated prices are $401 and $460. By overall MobileRank rating, the Redmi K90 leads — 68/100 vs 10/100 (a 58-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 3400); the main camera is 50 MP vs 12 MP; the Redmi K90 is faster in AnTuTu (3,088,357 vs 595,284); the Xiaomi Mi 8 is noticeably lighter (175g vs 206g).
Redmi K90
Xiaomi Mi 8
- Higher AnTuTu: 3088357 vs 595284
- Better Geekbench Single: 3050 vs 563
- Better Geekbench Multi: 9300 vs 2006
- Bigger battery: 7100 vs 3400 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 120Hz vs 60Hz
- Cheaper: $401 vs $460
- Higher performance (69/100 vs 0/100)
- Better camera (53/100 vs 9/100)
- Longer battery life (71/100 vs 0/100)
- Better display (100/100 vs 0/100)
- Better value for money (82/100 vs 78/100)
- Lighter: 175g vs 206g
- Better design/ergonomics (81/100 vs 42/100)
Comparing the Redmi K90 vs the Xiaomi Mi 8, the Redmi K90 scores 58 points higher (68/100 vs 10/100). In the "performance" category, the Redmi K90 leads (69/100 vs 0/100). In the "camera" category, the Redmi K90 leads (53/100 vs 9/100). In the "battery" category, the Redmi K90 leads (71/100 vs 0/100). In the "performance" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (69/100 vs 0/100). In the "display" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (100/100 vs 0/100). In the "camera" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (53/100 vs 9/100). In the "battery" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (71/100 vs 0/100). In the "design" category, the Xiaomi Mi 8 significantly outperforms the Redmi K90 (81/100 vs 42/100). In the "value for money" category, the Redmi K90 and the Xiaomi Mi 8 are nearly equal (82/100 vs 78/100).
| Specification | Redmi K90 | Xiaomi Mi 8 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 845 | |
| AnTuTu | 3088357 | 595284 | |
| Geekbench Single | 3050 | 563 | |
| Geekbench Multi | 9300 | 2006 | |
| Display | 6.6" AMOLED | 6.2" AMOLED | |
| Resolution | 2510x1156 | 2248x1080 | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 7100 mAh | 3400 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 12 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB | |
| Storage | 256GB / 512GB | 64GB / 128GB / 256GB | |
| OS | Android 16 | Android 8.1 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 154.9×74.8×7.6 mm | |
| Weight | 206 g | 175 g | |
| Price | $401 | $460 |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Xiaomi Mi 8
- Main: 12MP f/1.8
- Telephoto: 12MP
- Front: 20MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Xiaomi Mi 8
- 6.2" AMOLED
- Resolution: 2248x1080
- Refresh rate: 60 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mi 8
- 3400 mAh
- Wired: 18W
- No wireless charging
We compared Redmi K90 and Xiaomi Mi 8, covering their specs and all relevant benchmarks.
Redmi K90 leads Xiaomi Mi 8 by 418.8% in our overall performance rating.
Price difference: $59. Redmi K90 is cheaper by $59.
performance
In the "performance" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (69/100 vs 0/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (100/100 vs 0/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (53/100 vs 9/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Xiaomi Mi 8 (71/100 vs 0/100).
design
In the "design" category, the Xiaomi Mi 8 significantly outperforms the Redmi K90 (81/100 vs 42/100).
value for money
In the "value for money" category, the Redmi K90 and the Xiaomi Mi 8 are nearly equal (82/100 vs 78/100).
Which is better: the Redmi K90 or the Xiaomi Mi 8?
The Redmi K90 significantly outperforms the Xiaomi Mi 8 by 58 points (68/100 vs 10/100).
What is the rating of the Redmi K90 and the Xiaomi Mi 8?
The Redmi K90 has a MobileRank rating of 68/100, the Xiaomi Mi 8 — 10/100.
Which has the better camera: the Redmi K90 or the Xiaomi Mi 8?
The Redmi K90 leads on camera score (53/100 vs 9/100).
Which is more powerful: the Redmi K90 or the Xiaomi Mi 8?
The Redmi K90 leads on performance (69/100 vs 0/100).
Should you choose the Redmi K90 over the Xiaomi Mi 8?
The Redmi K90 is a better fit for active users, budget-conscious buyers. The Xiaomi Mi 8 is a better fit for budget-conscious buyers.