Redmi K90 Max vs Sony Xperia XA2 Ultra
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Sony Xperia XA2 Ultra (2018) runs on the Snapdragon 630; launch prices were $504 and $449. By overall MobileRank rating, the Redmi K90 Max leads — 74/100 vs 19/100 (a 55-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 3580); the main camera is 50 MP vs 23 MP; the Redmi K90 Max is faster in AnTuTu (3,803,420 vs 215,323); the Redmi K90 Max is thinner (8.1mm vs 9.5mm).
Redmi K90 Max
Sony Xperia XA2 Ultra
- Higher AnTuTu: 3803420 vs 215323
- Better Geekbench Single: 3228 vs 181
- Better Geekbench Multi: 9553 vs 960
- Bigger battery: 8550 vs 3580 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 23MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (95/100 vs 15/100)
- Better camera (37/100 vs 18/100)
- Longer battery life (78/100 vs 13/100)
- Better display (94/100 vs 40/100)
- Better portability (41/100 vs 30/100)
- Lighter: 221g vs 227g
- Cheaper at launch: $449 vs $504
- Overall rating 19/100
Comparing the Redmi K90 Max vs the Sony Xperia XA2 Ultra, the Redmi K90 Max scores 55 points higher (74/100 vs 19/100). In the "performance" category, the Redmi K90 Max leads (95/100 vs 15/100). In the "camera" category, the Redmi K90 Max leads (37/100 vs 18/100). In the "battery" category, the Redmi K90 Max leads (78/100 vs 13/100). Value score: Redmi K90 Max — 74/100, Sony Xperia XA2 Ultra — 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 Max significantly outperforms the Sony Xperia XA2 Ultra (95/100 vs 15/100). In the "display" category, the Redmi K90 Max significantly outperforms the Sony Xperia XA2 Ultra (94/100 vs 40/100). In the "camera" category, the Redmi K90 Max notably outperforms the Sony Xperia XA2 Ultra (37/100 vs 18/100). In the "battery" category, the Redmi K90 Max significantly outperforms the Sony Xperia XA2 Ultra (78/100 vs 13/100). In the "portability" category, the Redmi K90 Max is a bit better (41/100 vs 30/100).
| Specification | Redmi K90 Max | Sony Xperia XA2 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Snapdragon 630 | |
| AnTuTu | 3803420 | 215323 | |
| Geekbench Single | 3228 | 181 | |
| Geekbench Multi | 9553 | 960 | |
| Display | 6.8" AMOLED | 6.0" IPS LCD | |
| Resolution | 2772x1280 | 1080x1920 | |
| Refresh rate | 165 Hz | 60 Hz | |
| Battery | 8550 mAh | 3580 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 23 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 4GB | |
| Storage | 256GB / 512GB / 1TB | 32GB / 64GB | |
| OS | Android 16 | Android 8.0 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | — | |
| Dimensions | 162.9×77.9×8.1 mm | 163.0×80.0×9.5 mm | |
| Weight | 227 g | 221 g | |
| Launch price | $504 | $449 |
Redmi K90 Max
- Main: 50MP f/f/1.68
- Ultrawide: 8MP
- Front: 20MP
Sony Xperia XA2 Ultra
- Main: 23MP f/f/2.0
- Front: 16MP
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Sony Xperia XA2 Ultra
- 6.0" IPS LCD
- Resolution: 1080x1920
- Refresh rate: 60 Hz
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Sony Xperia XA2 Ultra
- 3580 mAh
- Wired: 18W
- No wireless charging
We compared Redmi K90 Max and Sony Xperia XA2 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Max leads Sony Xperia XA2 Ultra by 1666.4% in our overall performance rating.
Launch price difference: $55. Sony Xperia XA2 Ultra was $55 cheaper at launch.
performance
In the "performance" category, the Redmi K90 Max significantly outperforms the Sony Xperia XA2 Ultra (95/100 vs 15/100).
display
In the "display" category, the Redmi K90 Max significantly outperforms the Sony Xperia XA2 Ultra (94/100 vs 40/100).
camera
In the "camera" category, the Redmi K90 Max notably outperforms the Sony Xperia XA2 Ultra (37/100 vs 18/100).
battery
In the "battery" category, the Redmi K90 Max significantly outperforms the Sony Xperia XA2 Ultra (78/100 vs 13/100).
portability
In the "portability" category, the Redmi K90 Max is a bit better (41/100 vs 30/100).
Which is better: the Redmi K90 Max or the Sony Xperia XA2 Ultra?
The Redmi K90 Max significantly outperforms the Sony Xperia XA2 Ultra by 55 points (74/100 vs 19/100).
What is the rating of the Redmi K90 Max and the Sony Xperia XA2 Ultra?
The Redmi K90 Max has a MobileRank rating of 74/100, the Sony Xperia XA2 Ultra — 19/100.
Which has the better camera: the Redmi K90 Max or the Sony Xperia XA2 Ultra?
The Redmi K90 Max leads on camera score (37/100 vs 18/100).
Which is more powerful: the Redmi K90 Max or the Sony Xperia XA2 Ultra?
The Redmi K90 Max leads on performance (95/100 vs 15/100).
Should you choose the Redmi K90 Max over the Sony Xperia XA2 Ultra?
The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life. The Sony Xperia XA2 Ultra is a better fit for everyday use.