ASUS Zenfone 4 Pro ZS551KL vs Vivo iQOO Neo 12
The ASUS Zenfone 4 Pro ZS551KL (2017) runs on the Qualcomm Snapdragon 835, while the Vivo iQOO Neo 12 (2026) runs on the Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO Neo 12 leads — 76/100 vs 31/100 (a 45-point difference). Key differences: the Vivo iQOO Neo 12 has the bigger battery (9000 mAh vs 3600); the main camera is 12 MP vs 50 MP; the Vivo iQOO Neo 12 is faster in AnTuTu (4,647,154 vs 438,016); the ASUS Zenfone 4 Pro ZS551KL is noticeably lighter (175g vs 225g).
Profile comparison
Category scores
ASUS Zenfone 4 Pro ZS551KL
Vivo iQOO Neo 12
What makes ASUS Zenfone 4 Pro ZS551KL better?
- Lighter: 175g vs 225g
- Better portability (78/100 vs 38/100)
What makes Vivo iQOO Neo 12 better?
- Higher AnTuTu: 4647154 vs 438016
- Better Geekbench Single: 3639 vs 427
- Better Geekbench Multi: 11047 vs 1500
- Bigger battery: 9000 vs 3600 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 185Hz vs 60Hz
- Higher performance (99/100 vs 33/100)
- Better camera (35/100 vs 17/100)
- Longer battery life (80/100 vs 13/100)
- Better display (99/100 vs 56/100)
Comparison verdict
Comparing the ASUS Zenfone 4 Pro ZS551KL vs the Vivo iQOO Neo 12, the Vivo iQOO Neo 12 scores 45 points higher (76/100 vs 31/100). In the "performance" category, the Vivo iQOO Neo 12 leads (99/100 vs 33/100). In the "camera" category, the Vivo iQOO Neo 12 leads (35/100 vs 17/100). In the "battery" category, the Vivo iQOO Neo 12 leads (80/100 vs 13/100). In the "performance" category, the Vivo iQOO Neo 12 significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (99/100 vs 33/100). In the "display" category, the Vivo iQOO Neo 12 significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (99/100 vs 56/100). In the "camera" category, the Vivo iQOO Neo 12 notably outperforms the ASUS Zenfone 4 Pro ZS551KL (35/100 vs 17/100). In the "battery" category, the Vivo iQOO Neo 12 significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (80/100 vs 13/100). In the "portability" category, the ASUS Zenfone 4 Pro ZS551KL significantly outperforms the Vivo iQOO Neo 12 (78/100 vs 38/100).
Specs comparison
| Specification | ASUS Zenfone 4 Pro ZS551KL | Vivo iQOO Neo 12 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 835 | Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 438016 | 4647154 | |
| Geekbench Single | 427 | 3639 | |
| Geekbench Multi | 1500 | 11047 | |
| Display | 5.5" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x1920 | 1440x3200 | |
| Refresh rate | 60 Hz | 185 Hz | |
| Battery | 3600 mAh | 9000 mAh | |
| Charging | 18W | 100W | |
| Main camera | 12 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 16 MP | 0 MP | |
| Front camera | 8 MP | 16 MP | |
| RAM | 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 7.1.1 Nougat | Android 17 | |
| Brightness (peak) | — | 2200 nits | |
| NFC | yes | yes | |
| Protection | — | IP69 | |
| Dimensions | 156.9×75.6×7.6 mm | 163.4×75.9×8.5 mm | |
| Weight | 175 g | 225 g | |
| Launch price | $599 | — |
Camera comparison
ASUS Zenfone 4 Pro ZS551KL
- Main: 12MP f/1.7
- Telephoto: 16MP
- Front: 8MP
Vivo iQOO Neo 12
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 16MP
Display comparison
ASUS Zenfone 4 Pro ZS551KL
- 5.5" AMOLED
- Resolution: 1080x1920
- Refresh rate: 60 Hz
Vivo iQOO Neo 12
- 6.8" AMOLED
- Resolution: 1440x3200
- Refresh rate: 185 Hz
Battery and charging
ASUS Zenfone 4 Pro ZS551KL
- 3600 mAh
- Wired: 18W
- No wireless charging
Vivo iQOO Neo 12
- 9000 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared ASUS Zenfone 4 Pro ZS551KL and Vivo iQOO Neo 12, covering their specs and all relevant benchmarks.
Vivo iQOO Neo 12 leads ASUS Zenfone 4 Pro ZS551KL by 90.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Neo 12
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO Neo 12 significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (99/100 vs 33/100).
display
In the "display" category, the Vivo iQOO Neo 12 significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (99/100 vs 56/100).
camera
In the "camera" category, the Vivo iQOO Neo 12 notably outperforms the ASUS Zenfone 4 Pro ZS551KL (35/100 vs 17/100).
battery
In the "battery" category, the Vivo iQOO Neo 12 significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (80/100 vs 13/100).
portability
In the "portability" category, the ASUS Zenfone 4 Pro ZS551KL significantly outperforms the Vivo iQOO Neo 12 (78/100 vs 38/100).
Frequently asked questions
Which is better: the ASUS Zenfone 4 Pro ZS551KL or the Vivo iQOO Neo 12?
The Vivo iQOO Neo 12 significantly outperforms the ASUS Zenfone 4 Pro ZS551KL by 45 points (76/100 vs 31/100).
What is the rating of the ASUS Zenfone 4 Pro ZS551KL and the Vivo iQOO Neo 12?
The ASUS Zenfone 4 Pro ZS551KL has a MobileRank rating of 31/100, the Vivo iQOO Neo 12 — 76/100.
Which has the better camera: the ASUS Zenfone 4 Pro ZS551KL or the Vivo iQOO Neo 12?
The Vivo iQOO Neo 12 leads on camera score (35/100 vs 17/100).
Which is more powerful: the ASUS Zenfone 4 Pro ZS551KL or the Vivo iQOO Neo 12?
The Vivo iQOO Neo 12 leads on performance (99/100 vs 33/100).
Should you choose the ASUS Zenfone 4 Pro ZS551KL over the Vivo iQOO Neo 12?
The Vivo iQOO Neo 12 is a better fit for gamers and power users, those who care about battery life.