ASUS Asus ROG Phone II vs Redmi K90 Ultra
The ASUS Asus ROG Phone II (2019) runs on the Qualcomm Snapdragon 855+, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 57/100 (a 16-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6000); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 859,084); the Redmi K90 Ultra is thinner (8.2mm vs 9.5mm).
ASUS Asus ROG Phone II
Redmi K90 Ultra
- Overall rating 57/100
- Higher AnTuTu: 3119308 vs 859084
- Better Geekbench Single: 3041 vs 1031
- Better Geekbench Multi: 9494 vs 2864
- Bigger battery: 8550 vs 6000 mAh
- Faster charging: 100W vs 30W
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 227g vs 240g
- Higher performance (92/100 vs 55/100)
- Longer battery life (78/100 vs 53/100)
- Better display (94/100 vs 79/100)
- Better portability (40/100 vs 20/100)
Comparing the ASUS Asus ROG Phone II vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 16 points higher (73/100 vs 57/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 55/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 53/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the ASUS Asus ROG Phone II (92/100 vs 55/100). In the "display" category, the Redmi K90 Ultra notably outperforms the ASUS Asus ROG Phone II (94/100 vs 79/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the ASUS Asus ROG Phone II (78/100 vs 53/100). In the "portability" category, the Redmi K90 Ultra notably outperforms the ASUS Asus ROG Phone II (40/100 vs 20/100).
| Specification | ASUS Asus ROG Phone II | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 855+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 859084 | 3119308 | |
| Geekbench Single | 1031 | 3041 | |
| Geekbench Multi | 2864 | 9494 | |
| Display | 6.6" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2340 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 6000 mAh | 8550 mAh | |
| Charging | 30W | 100W | |
| Main camera | — | 50 MP | |
| Ultrawide | 48 MP | 8 MP | |
| Front camera | 24 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 9.0 (Pie), ROG UI | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 171.0×77.6×9.5 mm | 162.9×77.9×8.2 mm | |
| Weight | 240 g | 227 g | |
| Launch price | — | $420 |
ASUS Asus ROG Phone II
- Main: —
- Ultrawide: 48MP
- Front: 24MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
ASUS Asus ROG Phone II
- 6.6" AMOLED
- Resolution: 1080x2340
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
ASUS Asus ROG Phone II
- 6000 mAh
- Wired: 30W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared ASUS Asus ROG Phone II and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads ASUS Asus ROG Phone II by 72.5% in our overall performance rating.
ASUS Asus ROG Phone II
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the ASUS Asus ROG Phone II (92/100 vs 55/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the ASUS Asus ROG Phone II (94/100 vs 79/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the ASUS Asus ROG Phone II (78/100 vs 53/100).
portability
In the "portability" category, the Redmi K90 Ultra notably outperforms the ASUS Asus ROG Phone II (40/100 vs 20/100).
Which is better: the ASUS Asus ROG Phone II or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the ASUS Asus ROG Phone II — the overall rating gap is 16 points.
What is the rating of the ASUS Asus ROG Phone II and the Redmi K90 Ultra?
The ASUS Asus ROG Phone II has a MobileRank rating of 57/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the ASUS Asus ROG Phone II or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 55/100).
Should you choose the ASUS Asus ROG Phone II over the Redmi K90 Ultra?
The ASUS Asus ROG Phone II is a better fit for everyday use. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.