Redmi K90 Ultra vs Sony Xperia 1 VIII
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Sony Xperia 1 VIII (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $420 and $1499. By overall MobileRank rating, the Sony Xperia 1 VIII leads — 77/100 vs 73/100 (a 4-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 50 MP vs 48 MP; the Sony Xperia 1 VIII is faster in AnTuTu (3,842,882 vs 3,119,308); the Sony Xperia 1 VIII is noticeably lighter (200g vs 227g).
Redmi K90 Ultra
Sony Xperia 1 VIII
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 30W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $420 vs $1499
- Longer battery life (78/100 vs 53/100)
- Better display (94/100 vs 80/100)
- Better value for money (82/100 vs 60/100)
- Higher AnTuTu: 3842882 vs 3119308
- Better Geekbench Single: 3640 vs 3041
- Better Geekbench Multi: 11033 vs 9494
- Lighter: 200g vs 227g
- Higher performance (97/100 vs 92/100)
- Better camera (69/100 vs 37/100)
- Better portability (56/100 vs 40/100)
Comparing the Redmi K90 Ultra vs the Sony Xperia 1 VIII, the Sony Xperia 1 VIII scores 4 points higher (77/100 vs 73/100). In the "camera" category, the Sony Xperia 1 VIII leads (69/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 53/100). In the "value for money" category, the Redmi K90 Ultra leads (82/100 vs 60/100). In the "performance" category, the Sony Xperia 1 VIII is a bit better (97/100 vs 92/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 80/100). In the "camera" category, the Sony Xperia 1 VIII significantly outperforms the Redmi K90 Ultra (69/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Sony Xperia 1 VIII (78/100 vs 53/100). In the "portability" category, the Sony Xperia 1 VIII notably outperforms the Redmi K90 Ultra (56/100 vs 40/100). In the "value for money" category, the Redmi K90 Ultra notably outperforms the Sony Xperia 1 VIII (82/100 vs 60/100).
| Specification | Redmi K90 Ultra | Sony Xperia 1 VIII | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3119308 | 3842882 | |
| Geekbench Single | 3041 | 3640 | |
| Geekbench Multi | 9494 | 11033 | |
| Display | 6.8" AMOLED | 6.5" LTPO OLED | |
| Resolution | 1280x2772 | 1080x2340 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | 30W | |
| Wireless charging | 0W | 15W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 48 MP | |
| Telephoto | 0 MP | 48 MP | |
| Front camera | 20 MP | 12 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16, up to 5 major Android upgrades | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP65 | |
| Dimensions | 162.9×77.9×8.2 mm | 162.0×74.0×8.3 mm | |
| Weight | 227 g | 200 g | |
| Launch price | $420 | $1499 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Sony Xperia 1 VIII
- Main: 48MP f/f/1.9
- Ultrawide: 48MP
- Telephoto: 48MP
- Front: 12MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Sony Xperia 1 VIII
- 6.5" LTPO OLED
- Resolution: 1080x2340
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Sony Xperia 1 VIII
- 5000 mAh
- Wired: 30W
- Wireless: 15W
We compared Redmi K90 Ultra and Sony Xperia 1 VIII, covering their specs and all relevant benchmarks.
Sony Xperia 1 VIII leads Redmi K90 Ultra by 18.8% in our overall performance rating.
Launch price difference: $1079. Redmi K90 Ultra was $1079 cheaper at launch.
performance
In the "performance" category, the Sony Xperia 1 VIII is a bit better (97/100 vs 92/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 80/100).
camera
In the "camera" category, the Sony Xperia 1 VIII significantly outperforms the Redmi K90 Ultra (69/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Sony Xperia 1 VIII (78/100 vs 53/100).
portability
In the "portability" category, the Sony Xperia 1 VIII notably outperforms the Redmi K90 Ultra (56/100 vs 40/100).
value for money
In the "value for money" category, the Redmi K90 Ultra notably outperforms the Sony Xperia 1 VIII (82/100 vs 60/100).
Which is better: the Redmi K90 Ultra or the Sony Xperia 1 VIII?
The Sony Xperia 1 VIII edges out the Redmi K90 Ultra by just 4 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Sony Xperia 1 VIII?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Sony Xperia 1 VIII — 77/100.
Which has the better camera: the Redmi K90 Ultra or the Sony Xperia 1 VIII?
The Sony Xperia 1 VIII leads on camera score (69/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the Sony Xperia 1 VIII?
The Sony Xperia 1 VIII leads on performance (97/100 vs 92/100).
Should you choose the Redmi K90 Ultra over the Sony Xperia 1 VIII?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Sony Xperia 1 VIII is a better fit for gamers and power users.