ASUS Zenfone 12 Ultra vs Redmi K90
The ASUS Zenfone 12 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $999 and $401. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 75/100 (a 1-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5500); the ASUS Zenfone 12 Ultra is faster in AnTuTu (3,247,013 vs 3,077,585).
Profile comparison
Category scores
ASUS Zenfone 12 Ultra
Redmi K90
What makes ASUS Zenfone 12 Ultra better?
- Higher AnTuTu: 3247013 vs 3077585
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (92/100 vs 91/100)
- Better display (89/100 vs 82/100)
What makes Redmi K90 better?
- Bigger battery: 7100 vs 5500 mAh
- Faster charging: 100W vs 65W
- Lighter: 206g vs 220g
- Cheaper at launch: $401 vs $999
- Better camera (58/100 vs 56/100)
- Longer battery life (72/100 vs 66/100)
- Better portability (55/100 vs 38/100)
Comparison verdict
Comparing the ASUS Zenfone 12 Ultra vs the Redmi K90, the Redmi K90 scores 1 points higher (76/100 vs 75/100). Value score: ASUS Zenfone 12 Ultra — 60/100, Redmi K90 — 80/100; 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 ASUS Zenfone 12 Ultra and the Redmi K90 are nearly equal (92/100 vs 91/100). In the "display" category, the ASUS Zenfone 12 Ultra is a bit better (89/100 vs 82/100). In the "camera" category, the Redmi K90 and the ASUS Zenfone 12 Ultra are nearly equal (58/100 vs 56/100). In the "battery" category, the Redmi K90 is a bit better (72/100 vs 66/100). In the "portability" category, the Redmi K90 notably outperforms the ASUS Zenfone 12 Ultra (55/100 vs 38/100).
Specs comparison
| Specification | ASUS Zenfone 12 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3247013 | 3077585 | |
| Geekbench Single | 3013 | 3013 | |
| Geekbench Multi | 9287 | 9287 | |
| Display | 6.8" LTPO AMOLED | 6.6" AMOLED | |
| Resolution | 2400x1080 | 2510x1156 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 5500 mAh | 7100 mAh | |
| Charging | 65W | 100W | |
| Wireless charging | 15W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 13 MP | 8 MP | |
| Telephoto | 32 MP | 50 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 15 / ZenUI | Android 16 | |
| Brightness (peak) | 2500 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.8×77.0×8.9 mm | 157.5×75.3×8.0 mm | |
| Weight | 220 g | 206 g | |
| Launch price | $999 | $401 |
Camera comparison
ASUS Zenfone 12 Ultra
- Main: 50MP f/1.9
- Ultrawide: 13MP
- Telephoto: 32MP
- Front: 32MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
ASUS Zenfone 12 Ultra
- 6.8" LTPO AMOLED
- Resolution: 2400x1080
- Refresh rate: 144 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
ASUS Zenfone 12 Ultra
- 5500 mAh
- Wired: 65W
- Wireless: 15W
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared ASUS Zenfone 12 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
ASUS Zenfone 12 Ultra leads Redmi K90 by 5.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $598. Redmi K90 was $598 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the ASUS Zenfone 12 Ultra and the Redmi K90 are nearly equal (92/100 vs 91/100).
display
In the "display" category, the ASUS Zenfone 12 Ultra is a bit better (89/100 vs 82/100).
camera
In the "camera" category, the Redmi K90 and the ASUS Zenfone 12 Ultra are nearly equal (58/100 vs 56/100).
battery
In the "battery" category, the Redmi K90 is a bit better (72/100 vs 66/100).
portability
In the "portability" category, the Redmi K90 notably outperforms the ASUS Zenfone 12 Ultra (55/100 vs 38/100).
Frequently asked questions
Which is better: the ASUS Zenfone 12 Ultra or the Redmi K90?
The Redmi K90 edges out the ASUS Zenfone 12 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the ASUS Zenfone 12 Ultra and the Redmi K90?
The ASUS Zenfone 12 Ultra has a MobileRank rating of 75/100, the Redmi K90 — 76/100.
Should you choose the ASUS Zenfone 12 Ultra over the Redmi K90?
The ASUS Zenfone 12 Ultra is a better fit for gamers and power users. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.