ASUS Zenfone 12 Ultra vs Redmi K20 Pro
The ASUS Zenfone 12 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi K20 Pro (2019) runs on the Qualcomm Snapdragon 855; launch prices were $999 and $350. By overall MobileRank rating, the ASUS Zenfone 12 Ultra leads — 75/100 vs 46/100 (a 29-point difference). Key differences: the ASUS Zenfone 12 Ultra has the bigger battery (5500 mAh vs 4000); the main camera is 50 MP vs 48 MP; the ASUS Zenfone 12 Ultra is faster in AnTuTu (3,247,013 vs 824,513); the Redmi K20 Pro is noticeably lighter (191g vs 220g).
Profile comparison
Category scores
ASUS Zenfone 12 Ultra
Redmi K20 Pro
What makes ASUS Zenfone 12 Ultra better?
- Higher AnTuTu: 3247013 vs 824513
- Better Geekbench Single: 3013 vs 968
- Better Geekbench Multi: 9287 vs 2731
- Bigger battery: 5500 vs 4000 mAh
- Faster charging: 65W vs 27W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (92/100 vs 54/100)
- Better camera (56/100 vs 41/100)
- Longer battery life (66/100 vs 24/100)
- Better display (89/100 vs 56/100)
What makes Redmi K20 Pro better?
- Lighter: 191g vs 220g
- Cheaper at launch: $350 vs $999
- Better portability (56/100 vs 38/100)
Comparison verdict
Comparing the ASUS Zenfone 12 Ultra vs the Redmi K20 Pro, the ASUS Zenfone 12 Ultra scores 29 points higher (75/100 vs 46/100). In the "performance" category, the ASUS Zenfone 12 Ultra leads (92/100 vs 54/100). In the "camera" category, the ASUS Zenfone 12 Ultra leads (56/100 vs 41/100). In the "battery" category, the ASUS Zenfone 12 Ultra leads (66/100 vs 24/100). Value score: ASUS Zenfone 12 Ultra — 60/100, Redmi K20 Pro — 26/100; 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 significantly outperforms the Redmi K20 Pro (92/100 vs 54/100). In the "display" category, the ASUS Zenfone 12 Ultra significantly outperforms the Redmi K20 Pro (89/100 vs 56/100). In the "camera" category, the ASUS Zenfone 12 Ultra notably outperforms the Redmi K20 Pro (56/100 vs 41/100). In the "battery" category, the ASUS Zenfone 12 Ultra significantly outperforms the Redmi K20 Pro (66/100 vs 24/100). In the "portability" category, the Redmi K20 Pro notably outperforms the ASUS Zenfone 12 Ultra (56/100 vs 38/100).
Specs comparison
| Specification | ASUS Zenfone 12 Ultra | Redmi K20 Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855 | |
| AnTuTu | 3247013 | 824513 | |
| Geekbench Single | 3013 | 968 | |
| Geekbench Multi | 9287 | 2731 | |
| Display | 6.8" LTPO AMOLED | 6.4" AMOLED | |
| Resolution | 2400x1080 | 2340x1080 | |
| Refresh rate | 144 Hz | 60 Hz | |
| Battery | 5500 mAh | 4000 mAh | |
| Charging | 65W | 27W | |
| Wireless charging | 15W | 0W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 13 MP | 13 MP | |
| Telephoto | 32 MP | 8 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 64GB / 128GB / 256GB | |
| OS | Android 15 / ZenUI | Android 9 | |
| Brightness (peak) | 2500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 163.8×77.0×8.9 mm | 156.7×74.3×8.8 mm | |
| Weight | 220 g | 191 g | |
| Launch price | $999 | $350 |
Camera comparison
ASUS Zenfone 12 Ultra
- Main: 50MP f/1.9
- Ultrawide: 13MP
- Telephoto: 32MP
- Front: 32MP
Redmi K20 Pro
- Main: 48MP f/1.75
- Ultrawide: 13MP
- Telephoto: 8MP
- Front: 20MP
Display comparison
ASUS Zenfone 12 Ultra
- 6.8" LTPO AMOLED
- Resolution: 2400x1080
- Refresh rate: 144 Hz
Redmi K20 Pro
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Battery and charging
ASUS Zenfone 12 Ultra
- 5500 mAh
- Wired: 65W
- Wireless: 15W
Redmi K20 Pro
- 4000 mAh
- Wired: 27W
- No wireless charging
Overall performance score
We compared ASUS Zenfone 12 Ultra and Redmi K20 Pro, covering their specs and all relevant benchmarks.
ASUS Zenfone 12 Ultra leads Redmi K20 Pro by 293.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $649. Redmi K20 Pro was $649 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the ASUS Zenfone 12 Ultra significantly outperforms the Redmi K20 Pro (92/100 vs 54/100).
display
In the "display" category, the ASUS Zenfone 12 Ultra significantly outperforms the Redmi K20 Pro (89/100 vs 56/100).
camera
In the "camera" category, the ASUS Zenfone 12 Ultra notably outperforms the Redmi K20 Pro (56/100 vs 41/100).
battery
In the "battery" category, the ASUS Zenfone 12 Ultra significantly outperforms the Redmi K20 Pro (66/100 vs 24/100).
portability
In the "portability" category, the Redmi K20 Pro notably outperforms the ASUS Zenfone 12 Ultra (56/100 vs 38/100).
Frequently asked questions
Which is better: the ASUS Zenfone 12 Ultra or the Redmi K20 Pro?
The ASUS Zenfone 12 Ultra significantly outperforms the Redmi K20 Pro by 29 points (75/100 vs 46/100).
What is the rating of the ASUS Zenfone 12 Ultra and the Redmi K20 Pro?
The ASUS Zenfone 12 Ultra has a MobileRank rating of 75/100, the Redmi K20 Pro — 46/100.
Which has the better camera: the ASUS Zenfone 12 Ultra or the Redmi K20 Pro?
The ASUS Zenfone 12 Ultra leads on camera score (56/100 vs 41/100).
Which is more powerful: the ASUS Zenfone 12 Ultra or the Redmi K20 Pro?
The ASUS Zenfone 12 Ultra leads on performance (92/100 vs 54/100).
Should you choose the ASUS Zenfone 12 Ultra over the Redmi K20 Pro?
The ASUS Zenfone 12 Ultra is a better fit for gamers and power users.