ASUS Zenfone Max Plus (M2) ZB634KL vs Vivo iQOO 15 Ultra
The ASUS Zenfone Max Plus (M2) ZB634KL (2019) runs on the Qualcomm Snapdragon SiP 1, 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 26/100 (a 63-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 4000); the main camera is 12 MP vs 50 MP; the Vivo iQOO 15 Ultra has NFC for contactless payments, the ASUS Zenfone Max Plus (M2) ZB634KL doesn't; the ASUS Zenfone Max Plus (M2) ZB634KL is noticeably lighter (165g vs 227g).
ASUS Zenfone Max Plus (M2) ZB634KL
Vivo iQOO 15 Ultra
- Lighter: 165g vs 227g
- Better portability (75/100 vs 35/100)
- Bigger battery: 7400 vs 4000 mAh
- Faster charging: 120W vs 10W
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 144Hz vs 60Hz
- Better camera (78/100 vs 10/100)
- Longer battery life (92/100 vs 22/100)
- Better display (99/100 vs 42/100)
Comparing the ASUS Zenfone Max Plus (M2) ZB634KL vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 63 points higher (89/100 vs 26/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 22/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Plus (M2) ZB634KL (99/100 vs 42/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Plus (M2) ZB634KL (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Plus (M2) ZB634KL (92/100 vs 22/100). In the "portability" category, the ASUS Zenfone Max Plus (M2) ZB634KL significantly outperforms the Vivo iQOO 15 Ultra (75/100 vs 35/100).
| Specification | ASUS Zenfone Max Plus (M2) ZB634KL | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon SiP 1 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | — | 4602290 | |
| Geekbench Single | — | 3640 | |
| Geekbench Multi | — | 11033 | |
| Display | 6.3" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 1080x2246 | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 4000 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 | 8 MP | 32 MP | |
| RAM | 3GB / 4GB | 12GB / 16GB / 24GB | |
| Storage | 32GB / 64GB | 256GB / 512GB / 1TB | |
| OS | Android 8.0 Oreo | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 159.2×76.2×8.4 mm | 163.7×76.8×8.7 mm | |
| Weight | 165 g | 227 g | |
| Launch price | — | $799 |
ASUS Zenfone Max Plus (M2) ZB634KL
- Main: 12MP f/f/1.8
- Front: 8MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
ASUS Zenfone Max Plus (M2) ZB634KL
- 6.3" IPS LCD
- Resolution: 1080x2246
- Refresh rate: 60 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
ASUS Zenfone Max Plus (M2) ZB634KL
- 4000 mAh
- Wired: 10W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
ASUS Zenfone Max Plus (M2) ZB634KL
Price unknowndisplay
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Plus (M2) ZB634KL (99/100 vs 42/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Plus (M2) ZB634KL (78/100 vs 10/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Plus (M2) ZB634KL (92/100 vs 22/100).
portability
In the "portability" category, the ASUS Zenfone Max Plus (M2) ZB634KL significantly outperforms the Vivo iQOO 15 Ultra (75/100 vs 35/100).
Which is better: the ASUS Zenfone Max Plus (M2) ZB634KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone Max Plus (M2) ZB634KL by 63 points (89/100 vs 26/100).
What is the rating of the ASUS Zenfone Max Plus (M2) ZB634KL and the Vivo iQOO 15 Ultra?
The ASUS Zenfone Max Plus (M2) ZB634KL has a MobileRank rating of 26/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the ASUS Zenfone Max Plus (M2) ZB634KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 10/100).
Should you choose the ASUS Zenfone Max Plus (M2) ZB634KL over the Vivo iQOO 15 Ultra?
The ASUS Zenfone Max Plus (M2) ZB634KL 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.