ASUS Zenfone Max Pro (M2) ZB631KL vs Vivo iQOO 15 Ultra
The ASUS Zenfone Max Pro (M2) ZB631KL (2018) runs on the Qualcomm Snapdragon 660, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 29/100 (a 60-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5000); the main camera is 12 MP vs 50 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 347,995); the ASUS Zenfone Max Pro (M2) ZB631KL is noticeably lighter (175g vs 227g).
ASUS Zenfone Max Pro (M2) ZB631KL
Vivo iQOO 15 Ultra
- Lighter: 175g vs 227g
- Better portability (68/100 vs 35/100)
- Higher AnTuTu: 4602290 vs 347995
- Better Geekbench Single: 3640 vs 360
- Better Geekbench Multi: 11033 vs 1115
- Bigger battery: 7400 vs 5000 mAh
- Faster charging: 120W vs 10W
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (99/100 vs 25/100)
- Better camera (78/100 vs 12/100)
- Longer battery life (92/100 vs 43/100)
- Better display (99/100 vs 42/100)
Comparing the ASUS Zenfone Max Pro (M2) ZB631KL vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 60 points higher (89/100 vs 29/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 25/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 12/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 43/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (99/100 vs 25/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (99/100 vs 42/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (78/100 vs 12/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (92/100 vs 43/100). In the "portability" category, the ASUS Zenfone Max Pro (M2) ZB631KL significantly outperforms the Vivo iQOO 15 Ultra (68/100 vs 35/100).
| Specification | ASUS Zenfone Max Pro (M2) ZB631KL | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 347995 | 4602290 | |
| Geekbench Single | 360 | 3640 | |
| Geekbench Multi | 1115 | 11033 | |
| Display | 6.3" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 1080x2280 | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 5000 mAh | 7400 mAh | |
| Charging | 10W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 12 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 13 MP | 32 MP | |
| RAM | 3GB / 4GB / 6GB | 12GB / 16GB / 24GB | |
| Storage | 32GB / 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 8.1 Oreo | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 157.9×75.5×8.5 mm | 163.7×76.8×8.7 mm | |
| Weight | 175 g | 227 g | |
| Launch price | — | $799 |
ASUS Zenfone Max Pro (M2) ZB631KL
- Main: 12MP f/f/1.8
- Front: 13MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
ASUS Zenfone Max Pro (M2) ZB631KL
- 6.3" IPS LCD
- Resolution: 1080x2280
- Refresh rate: 60 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
ASUS Zenfone Max Pro (M2) ZB631KL
- 5000 mAh
- Wired: 10W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
We compared ASUS Zenfone Max Pro (M2) ZB631KL and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads ASUS Zenfone Max Pro (M2) ZB631KL by 92.4% in our overall performance rating.
ASUS Zenfone Max Pro (M2) ZB631KL
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (99/100 vs 25/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (99/100 vs 42/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (78/100 vs 12/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL (92/100 vs 43/100).
portability
In the "portability" category, the ASUS Zenfone Max Pro (M2) ZB631KL significantly outperforms the Vivo iQOO 15 Ultra (68/100 vs 35/100).
Which is better: the ASUS Zenfone Max Pro (M2) ZB631KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Pro (M2) ZB631KL by 60 points (89/100 vs 29/100).
What is the rating of the ASUS Zenfone Max Pro (M2) ZB631KL and the Vivo iQOO 15 Ultra?
The ASUS Zenfone Max Pro (M2) ZB631KL has a MobileRank rating of 29/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the ASUS Zenfone Max Pro (M2) ZB631KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 12/100).
Which is more powerful: the ASUS Zenfone Max Pro (M2) ZB631KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 25/100).
Should you choose the ASUS Zenfone Max Pro (M2) ZB631KL over the Vivo iQOO 15 Ultra?
The ASUS Zenfone Max Pro (M2) ZB631KL is a better fit for everyday use. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.