Redmi K90 vs Sony Xperia 5 III
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Sony Xperia 5 III (2021) runs on the Snapdragon 888; launch prices were $401 and $999. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 51/100 (a 25-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4500); the main camera is 50 MP vs 12 MP; the Redmi K90 is faster in AnTuTu (3,088,357 vs 1,119,714); the Sony Xperia 5 III is noticeably lighter (168g vs 206g).
Redmi K90
Sony Xperia 5 III
- Higher AnTuTu: 3088357 vs 1119714
- Better Geekbench Single: 3041 vs 1488
- Better Geekbench Multi: 9494 vs 3373
- Bigger battery: 7100 vs 4500 mAh
- Faster charging: 100W vs 30W
- Better main camera: 50MP vs 12MP
- Cheaper at launch: $401 vs $999
- Higher performance (92/100 vs 63/100)
- Better camera (58/100 vs 20/100)
- Longer battery life (72/100 vs 35/100)
- Lighter: 168g vs 206g
- Better display (84/100 vs 82/100)
- Better portability (76/100 vs 55/100)
Comparing the Redmi K90 vs the Sony Xperia 5 III, the Redmi K90 scores 25 points higher (76/100 vs 51/100). In the "performance" category, the Redmi K90 leads (92/100 vs 63/100). In the "camera" category, the Redmi K90 leads (58/100 vs 20/100). In the "battery" category, the Redmi K90 leads (72/100 vs 35/100). Value score: Redmi K90 — 90/100, Sony Xperia 5 III — 14/100; 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 notably outperforms the Sony Xperia 5 III (92/100 vs 63/100). In the "display" category, the Sony Xperia 5 III and the Redmi K90 are nearly equal (84/100 vs 82/100). In the "camera" category, the Redmi K90 significantly outperforms the Sony Xperia 5 III (58/100 vs 20/100). In the "battery" category, the Redmi K90 significantly outperforms the Sony Xperia 5 III (72/100 vs 35/100). In the "portability" category, the Sony Xperia 5 III notably outperforms the Redmi K90 (76/100 vs 55/100).
| Specification | Redmi K90 | Sony Xperia 5 III | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Snapdragon 888 | |
| AnTuTu | 3088357 | 1119714 | |
| Geekbench Single | 3041 | 1488 | |
| Geekbench Multi | 9494 | 3373 | |
| Display | 6.6" AMOLED | 6.1" OLED | |
| Resolution | 2510x1156 | 1080x2520 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7100 mAh | 4500 mAh | |
| Charging | 100W | 30W | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 8 MP | 12 MP | |
| Telephoto | 50 MP | 12 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 11 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | IP65/IP68 | |
| Dimensions | 157.5×75.3×8.0 mm | 157.0×68.0×8.2 mm | |
| Weight | 206 g | 168 g | |
| Launch price | $401 | $999 |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Sony Xperia 5 III
- Main: 12MP f/f/1.7
- Ultrawide: 12MP
- Telephoto: 12MP
- Front: 8MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Sony Xperia 5 III
- 6.1" OLED
- Resolution: 1080x2520
- Refresh rate: 120 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Sony Xperia 5 III
- 4500 mAh
- Wired: 30W
- No wireless charging
We compared Redmi K90 and Sony Xperia 5 III, covering their specs and all relevant benchmarks.
Redmi K90 leads Sony Xperia 5 III by 175.8% in our overall performance rating.
Launch price difference: $598. Redmi K90 was $598 cheaper at launch.
performance
In the "performance" category, the Redmi K90 notably outperforms the Sony Xperia 5 III (92/100 vs 63/100).
display
In the "display" category, the Sony Xperia 5 III and the Redmi K90 are nearly equal (84/100 vs 82/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Sony Xperia 5 III (58/100 vs 20/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Sony Xperia 5 III (72/100 vs 35/100).
portability
In the "portability" category, the Sony Xperia 5 III notably outperforms the Redmi K90 (76/100 vs 55/100).
Which is better: the Redmi K90 or the Sony Xperia 5 III?
The Redmi K90 significantly outperforms the Sony Xperia 5 III by 25 points (76/100 vs 51/100).
What is the rating of the Redmi K90 and the Sony Xperia 5 III?
The Redmi K90 has a MobileRank rating of 76/100, the Sony Xperia 5 III — 51/100.
Which has the better camera: the Redmi K90 or the Sony Xperia 5 III?
The Redmi K90 leads on camera score (58/100 vs 20/100).
Which is more powerful: the Redmi K90 or the Sony Xperia 5 III?
The Redmi K90 leads on performance (92/100 vs 63/100).
Should you choose the Redmi K90 over the Sony Xperia 5 III?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers. The Sony Xperia 5 III is a better fit for active users.