ASUS Zenfone 4 ZE554KL vs Vivo iQOO 15 Ultra
The ASUS Zenfone 4 ZE554KL (2017) runs on the Qualcomm Snapdragon 630, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $399 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 21/100 (a 68-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 3300); the main camera is 12 MP vs 50 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 215,323); the ASUS Zenfone 4 ZE554KL is noticeably lighter (165g vs 227g).
Profile comparison
Category scores
ASUS Zenfone 4 ZE554KL
Vivo iQOO 15 Ultra
What makes ASUS Zenfone 4 ZE554KL better?
- Lighter: 165g vs 227g
- Cheaper at launch: $399 vs $799
- Better portability (83/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 215323
- Better Geekbench Single: 3639 vs 181
- Better Geekbench Multi: 11047 vs 960
- Bigger battery: 7400 vs 3300 mAh
- Faster charging: 120W vs 18W
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (99/100 vs 15/100)
- Better camera (78/100 vs 13/100)
- Longer battery life (92/100 vs 12/100)
- Better display (99/100 vs 42/100)
Comparison verdict
Comparing the ASUS Zenfone 4 ZE554KL vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 68 points higher (89/100 vs 21/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 15/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 13/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 12/100). Value score: ASUS Zenfone 4 ZE554KL — 0/100, Vivo iQOO 15 Ultra — 92/100; 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 Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (99/100 vs 15/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (99/100 vs 42/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (78/100 vs 13/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (92/100 vs 12/100). In the "portability" category, the ASUS Zenfone 4 ZE554KL significantly outperforms the Vivo iQOO 15 Ultra (83/100 vs 35/100).
Specs comparison
| Specification | ASUS Zenfone 4 ZE554KL | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 630 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 215323 | 4602290 | |
| Geekbench Single | 181 | 3639 | |
| Geekbench Multi | 960 | 11047 | |
| Display | 5.5" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 1080x1920 | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 3300 mAh | 7400 mAh | |
| Charging | 18W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 12 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB / 24GB | |
| Storage | 64GB | 256GB / 512GB / 1TB | |
| OS | Android 7.1.1 Nougat | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 155.4×75.2×7.7 mm | 163.7×76.8×8.7 mm | |
| Weight | 165 g | 227 g | |
| Launch price | $399 | $799 |
Camera comparison
ASUS Zenfone 4 ZE554KL
- Main: 12MP f/1.8
- Ultrawide: 8MP
- Front: 8MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
ASUS Zenfone 4 ZE554KL
- 5.5" IPS LCD
- Resolution: 1080x1920
- Refresh rate: 60 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
ASUS Zenfone 4 ZE554KL
- 3300 mAh
- Wired: 18W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared ASUS Zenfone 4 ZE554KL and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads ASUS Zenfone 4 ZE554KL by 95.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $400. ASUS Zenfone 4 ZE554KL was $400 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (99/100 vs 15/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (99/100 vs 42/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (78/100 vs 13/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL (92/100 vs 12/100).
portability
In the "portability" category, the ASUS Zenfone 4 ZE554KL significantly outperforms the Vivo iQOO 15 Ultra (83/100 vs 35/100).
Frequently asked questions
Which is better: the ASUS Zenfone 4 ZE554KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the ASUS Zenfone 4 ZE554KL by 68 points (89/100 vs 21/100).
What is the rating of the ASUS Zenfone 4 ZE554KL and the Vivo iQOO 15 Ultra?
The ASUS Zenfone 4 ZE554KL has a MobileRank rating of 21/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the ASUS Zenfone 4 ZE554KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 13/100).
Which is more powerful: the ASUS Zenfone 4 ZE554KL or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 15/100).
Should you choose the ASUS Zenfone 4 ZE554KL over the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.