Redmi K90 vs Sony Xperia XZ2 Compact
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Sony Xperia XZ2 Compact (2018) runs on the Snapdragon 845; launch prices were $401 and $649. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 31/100 (a 45-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 2870); the main camera is 50 MP vs 19 MP; the Redmi K90 is faster in AnTuTu (3,086,235 vs 595,284); the Sony Xperia XZ2 Compact is noticeably lighter (168g vs 206g).
Redmi K90
Sony Xperia XZ2 Compact
- Higher AnTuTu: 3086235 vs 595284
- Better Geekbench Single: 3041 vs 563
- Better Geekbench Multi: 9494 vs 2006
- Bigger battery: 7100 vs 2870 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 19MP
- Higher refresh rate: 120Hz vs 60Hz
- Cheaper at launch: $401 vs $649
- Higher performance (92/100 vs 41/100)
- Better camera (58/100 vs 13/100)
- Longer battery life (72/100 vs 12/100)
- Better display (82/100 vs 49/100)
- Lighter: 168g vs 206g
- Better portability (63/100 vs 55/100)
Comparing the Redmi K90 vs the Sony Xperia XZ2 Compact, the Redmi K90 scores 45 points higher (76/100 vs 31/100). In the "performance" category, the Redmi K90 leads (92/100 vs 41/100). In the "camera" category, the Redmi K90 leads (58/100 vs 13/100). In the "battery" category, the Redmi K90 leads (72/100 vs 12/100). Value score: Redmi K90 — 90/100, Sony Xperia XZ2 Compact — 0/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (92/100 vs 41/100). In the "display" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (82/100 vs 49/100). In the "camera" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (58/100 vs 13/100). In the "battery" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (72/100 vs 12/100). In the "portability" category, the Sony Xperia XZ2 Compact is a bit better (63/100 vs 55/100).
| Specification | Redmi K90 | Sony Xperia XZ2 Compact | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Snapdragon 845 | |
| AnTuTu | 3086235 | 595284 | |
| Geekbench Single | 3041 | 563 | |
| Geekbench Multi | 9494 | 2006 | |
| Display | 6.6" AMOLED | 5.0" IPS LCD | |
| Resolution | 2510x1156 | 1080x2160 | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 7100 mAh | 2870 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 19 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 5 MP | |
| RAM | 12GB / 16GB | 4GB | |
| Storage | 256GB / 512GB | 64GB | |
| OS | Android 16 | Android 8.0 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | IP65/IP68 | |
| Dimensions | 157.5×75.3×8.0 mm | 135.0×65.0×12.1 mm | |
| Weight | 206 g | 168 g | |
| Launch price | $401 | $649 |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Sony Xperia XZ2 Compact
- Main: 19MP f/f/2.0
- Front: 5MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Sony Xperia XZ2 Compact
- 5.0" IPS LCD
- Resolution: 1080x2160
- Refresh rate: 60 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Sony Xperia XZ2 Compact
- 2870 mAh
- Wired: 18W
- No wireless charging
We compared Redmi K90 and Sony Xperia XZ2 Compact, covering their specs and all relevant benchmarks.
Redmi K90 leads Sony Xperia XZ2 Compact by 418.4% in our overall performance rating.
Launch price difference: $248. Redmi K90 was $248 cheaper at launch.
performance
In the "performance" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (92/100 vs 41/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (82/100 vs 49/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (58/100 vs 13/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact (72/100 vs 12/100).
portability
In the "portability" category, the Sony Xperia XZ2 Compact is a bit better (63/100 vs 55/100).
Which is better: the Redmi K90 or the Sony Xperia XZ2 Compact?
The Redmi K90 significantly outperforms the Sony Xperia XZ2 Compact by 45 points (76/100 vs 31/100).
What is the rating of the Redmi K90 and the Sony Xperia XZ2 Compact?
The Redmi K90 has a MobileRank rating of 76/100, the Sony Xperia XZ2 Compact — 31/100.
Which has the better camera: the Redmi K90 or the Sony Xperia XZ2 Compact?
The Redmi K90 leads on camera score (58/100 vs 13/100).
Which is more powerful: the Redmi K90 or the Sony Xperia XZ2 Compact?
The Redmi K90 leads on performance (92/100 vs 41/100).
Should you choose the Redmi K90 over the Sony Xperia XZ2 Compact?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers. The Sony Xperia XZ2 Compact is a better fit for everyday use.