ASUS Asus Zenfone 12 Ultra vs Realme X3
The ASUS Asus Zenfone 12 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Realme X3 (2020) runs on the Qualcomm Snapdragon 855+. By overall MobileRank rating, the ASUS Asus Zenfone 12 Ultra leads — 62/100 vs 33/100 (a 29-point difference). Key differences: the ASUS Asus Zenfone 12 Ultra has the bigger battery (5500 mAh vs 4200); the main camera is 50 MP vs 64 MP; the ASUS Asus Zenfone 12 Ultra is faster in AnTuTu (2,760,000 vs 859,084); the ASUS Asus Zenfone 12 Ultra has NFC for contactless payments, the Realme X3 doesn't; the Realme X3 is noticeably lighter (202g vs 220g).
ASUS Asus Zenfone 12 Ultra
Realme X3
- Higher AnTuTu: 2760000 vs 859084
- Better Geekbench Single: 3050 vs 1031
- Better Geekbench Multi: 9300 vs 2864
- Bigger battery: 5500 vs 4200 mAh
- Faster charging: 65W vs 30W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (65/100 vs 2/100)
- Better camera (52/100 vs 45/100)
- Longer battery life (57/100 vs 19/100)
- Better main camera: 64MP vs 50MP
- Lighter: 202g vs 220g
- Better design/ergonomics (47/100 vs 25/100)
- Better value for money (79/100 vs 55/100)
Comparing the ASUS Asus Zenfone 12 Ultra vs the Realme X3, the ASUS Asus Zenfone 12 Ultra scores 29 points higher (62/100 vs 33/100). In the "performance" category, the ASUS Asus Zenfone 12 Ultra leads (65/100 vs 2/100). In the "battery" category, the ASUS Asus Zenfone 12 Ultra leads (57/100 vs 19/100). In the "value for money" category, the Realme X3 leads (79/100 vs 55/100). In the "performance" category, the ASUS Asus Zenfone 12 Ultra significantly outperforms the Realme X3 (65/100 vs 2/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the ASUS Asus Zenfone 12 Ultra is a bit better (52/100 vs 45/100). In the "battery" category, the ASUS Asus Zenfone 12 Ultra significantly outperforms the Realme X3 (57/100 vs 19/100). In the "design" category, the Realme X3 notably outperforms the ASUS Asus Zenfone 12 Ultra (47/100 vs 25/100). In the "value for money" category, the Realme X3 notably outperforms the ASUS Asus Zenfone 12 Ultra (79/100 vs 55/100).
| Specification | ASUS Asus Zenfone 12 Ultra | Realme X3 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855+ | |
| AnTuTu | 2760000 | 859084 | |
| Geekbench Single | 3050 | 1031 | |
| Geekbench Multi | 9300 | 2864 | |
| Display | 6.8" LTPO AMOLED | 6.0" IPS LCD | |
| Resolution | 1080x2400 | 1080x2400 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 5500 mAh | 4200 mAh | |
| Charging | 65W | 30W | |
| Wireless charging | 15W | 0W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 13 MP | 8 MP | |
| Telephoto | 32 MP | 12 MP | |
| Front camera | 32 MP | 16 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB | |
| OS | Android 15, up to 2 major Android upgrades | Android 10, Realme UI | |
| Brightness (peak) | 2500 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.8×77.0×8.9 mm | 163.8×75.8×8.9 mm | |
| Weight | 220 g | 202 g | |
| Price | — | $450 |
ASUS Asus Zenfone 12 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 13MP
- Telephoto: 32MP
- Front: 32MP
Realme X3
- Main: 64MP f/f/1.8
- Ultrawide: 8MP
- Telephoto: 12MP
- Front: 16MP
ASUS Asus Zenfone 12 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1080x2400
- Refresh rate: 144 Hz
Realme X3
- 6.0" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 120 Hz
ASUS Asus Zenfone 12 Ultra
- 5500 mAh
- Wired: 65W
- Wireless: 15W
Realme X3
- 4200 mAh
- Wired: 30W
- No wireless charging
We compared ASUS Asus Zenfone 12 Ultra and Realme X3, covering their specs and all relevant benchmarks.
ASUS Asus Zenfone 12 Ultra leads Realme X3 by 221.3% in our overall performance rating.
ASUS Asus Zenfone 12 Ultra
Price unknownperformance
In the "performance" category, the ASUS Asus Zenfone 12 Ultra significantly outperforms the Realme X3 (65/100 vs 2/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the ASUS Asus Zenfone 12 Ultra is a bit better (52/100 vs 45/100).
battery
In the "battery" category, the ASUS Asus Zenfone 12 Ultra significantly outperforms the Realme X3 (57/100 vs 19/100).
design
In the "design" category, the Realme X3 notably outperforms the ASUS Asus Zenfone 12 Ultra (47/100 vs 25/100).
value for money
In the "value for money" category, the Realme X3 notably outperforms the ASUS Asus Zenfone 12 Ultra (79/100 vs 55/100).
Which is better: the ASUS Asus Zenfone 12 Ultra or the Realme X3?
The ASUS Asus Zenfone 12 Ultra significantly outperforms the Realme X3 by 29 points (62/100 vs 33/100).
What is the rating of the ASUS Asus Zenfone 12 Ultra and the Realme X3?
The ASUS Asus Zenfone 12 Ultra has a MobileRank rating of 62/100, the Realme X3 — 33/100.
Which has the better camera: the ASUS Asus Zenfone 12 Ultra or the Realme X3?
The ASUS Asus Zenfone 12 Ultra leads on camera score (52/100 vs 45/100).
Which is more powerful: the ASUS Asus Zenfone 12 Ultra or the Realme X3?
The ASUS Asus Zenfone 12 Ultra leads on performance (65/100 vs 2/100).
Should you choose the ASUS Asus Zenfone 12 Ultra over the Realme X3?
The ASUS Asus Zenfone 12 Ultra is a better fit for active users. The Realme X3 is a better fit for budget-conscious buyers.