Redmi K90 Max vs Sony Xperia 5 III
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Sony Xperia 5 III (2021) runs on the Snapdragon 888; launch prices were $504 and $999. By overall MobileRank rating, the Redmi K90 Max leads — 75/100 vs 51/100 (a 24-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 4500); the main camera is 50 MP vs 12 MP; the Redmi K90 Max is faster in AnTuTu (3,760,662 vs 1,135,878); the Sony Xperia 5 III is noticeably lighter (168g vs 227g).
Profile comparison
Category scores
Redmi K90 Max
Sony Xperia 5 III
What makes Redmi K90 Max better?
- Higher AnTuTu: 3760662 vs 1135878
- Better Geekbench Single: 3293 vs 1500
- Better Geekbench Multi: 10243 vs 3537
- Bigger battery: 8550 vs 4500 mAh
- Faster charging: 100W vs 30W
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $504 vs $999
- Higher performance (96/100 vs 64/100)
- Better camera (37/100 vs 20/100)
- Longer battery life (78/100 vs 35/100)
- Better display (94/100 vs 84/100)
What makes Sony Xperia 5 III better?
- Lighter: 168g vs 227g
- Better portability (76/100 vs 41/100)
Comparison verdict
Comparing the Redmi K90 Max vs the Sony Xperia 5 III, the Redmi K90 Max scores 24 points higher (75/100 vs 51/100). In the "performance" category, the Redmi K90 Max leads (96/100 vs 64/100). In the "camera" category, the Redmi K90 Max leads (37/100 vs 20/100). In the "battery" category, the Redmi K90 Max leads (78/100 vs 35/100). Value score: Redmi K90 Max — 72/100, Sony Xperia 5 III — 12/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Max significantly outperforms the Sony Xperia 5 III (96/100 vs 64/100). In the "display" category, the Redmi K90 Max is a bit better (94/100 vs 84/100). In the "camera" category, the Redmi K90 Max notably outperforms the Sony Xperia 5 III (37/100 vs 20/100). In the "battery" category, the Redmi K90 Max significantly outperforms the Sony Xperia 5 III (78/100 vs 35/100). In the "portability" category, the Sony Xperia 5 III significantly outperforms the Redmi K90 Max (76/100 vs 41/100).
Specs comparison
| Specification | Redmi K90 Max | Sony Xperia 5 III | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Snapdragon 888 | |
| AnTuTu | 3760662 | 1135878 | |
| Geekbench Single | 3293 | 1500 | |
| Geekbench Multi | 10243 | 3537 | |
| Display | 6.8" AMOLED | 6.1" OLED | |
| Resolution | 2772x1280 | 1080x2520 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 4500 mAh | |
| Charging | 100W | 30W | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 8 MP | 12 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 11 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | IP65/IP68 | |
| Dimensions | 162.9×77.9×8.1 mm | 157.0×68.0×8.2 mm | |
| Weight | 227 g | 168 g | |
| Launch price | $504 | $999 |
Camera comparison
Redmi K90 Max
- Main: 50MP f/1.68
- Ultrawide: 8MP
- Front: 20MP
Sony Xperia 5 III
- Main: 12MP f/1.7
- Ultrawide: 12MP
- Telephoto: 12MP
- Front: 8MP
Display comparison
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Sony Xperia 5 III
- 6.1" OLED
- Resolution: 1080x2520
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Sony Xperia 5 III
- 4500 mAh
- Wired: 30W
- No wireless charging
Overall performance score
We compared Redmi K90 Max and Sony Xperia 5 III, covering their specs and all relevant benchmarks.
Redmi K90 Max leads Sony Xperia 5 III by 231.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $495. Redmi K90 Max was $495 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Max significantly outperforms the Sony Xperia 5 III (96/100 vs 64/100).
display
In the "display" category, the Redmi K90 Max is a bit better (94/100 vs 84/100).
camera
In the "camera" category, the Redmi K90 Max notably outperforms the Sony Xperia 5 III (37/100 vs 20/100).
battery
In the "battery" category, the Redmi K90 Max significantly outperforms the Sony Xperia 5 III (78/100 vs 35/100).
portability
In the "portability" category, the Sony Xperia 5 III significantly outperforms the Redmi K90 Max (76/100 vs 41/100).
Frequently asked questions
Which is better: the Redmi K90 Max or the Sony Xperia 5 III?
The Redmi K90 Max significantly outperforms the Sony Xperia 5 III by 24 points (75/100 vs 51/100).
What is the rating of the Redmi K90 Max and the Sony Xperia 5 III?
The Redmi K90 Max has a MobileRank rating of 75/100, the Sony Xperia 5 III — 51/100.
Which has the better camera: the Redmi K90 Max or the Sony Xperia 5 III?
The Redmi K90 Max leads on camera score (37/100 vs 20/100).
Which is more powerful: the Redmi K90 Max or the Sony Xperia 5 III?
The Redmi K90 Max leads on performance (96/100 vs 64/100).
Should you choose the Redmi K90 Max over the Sony Xperia 5 III?
The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life. The Sony Xperia 5 III is a better fit for active users.