ASUS Zenfone 4 Pro ZS551KL vs Nubia NaviX Ultra
The ASUS Zenfone 4 Pro ZS551KL (2017) runs on the Qualcomm Snapdragon 835, while the Nubia NaviX Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $599 and $845. By overall MobileRank rating, the Nubia NaviX Ultra leads — 92/100 vs 31/100 (a 61-point difference). Key differences: the Nubia NaviX Ultra has the bigger battery (7100 mAh vs 3600); the main camera is 12 MP vs 200 MP; the Nubia NaviX Ultra is faster in AnTuTu (3,950,082 vs 438,016); the ASUS Zenfone 4 Pro ZS551KL is noticeably lighter (175g vs 208g).
Profile comparison
Category scores
ASUS Zenfone 4 Pro ZS551KL
Nubia NaviX Ultra
What makes ASUS Zenfone 4 Pro ZS551KL better?
- Lighter: 175g vs 208g
- Cheaper at launch: $599 vs $845
- Better portability (78/100 vs 59/100)
What makes Nubia NaviX Ultra better?
- Higher AnTuTu: 3950082 vs 438016
- Better Geekbench Single: 3639 vs 427
- Better Geekbench Multi: 11047 vs 1500
- Bigger battery: 7100 vs 3600 mAh
- Faster charging: 90W vs 18W
- Better main camera: 200MP vs 12MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (98/100 vs 33/100)
- Better camera (96/100 vs 17/100)
- Longer battery life (85/100 vs 13/100)
- Better display (94/100 vs 56/100)
Comparison verdict
Comparing the ASUS Zenfone 4 Pro ZS551KL vs the Nubia NaviX Ultra, the Nubia NaviX Ultra scores 61 points higher (92/100 vs 31/100). In the "performance" category, the Nubia NaviX Ultra leads (98/100 vs 33/100). In the "camera" category, the Nubia NaviX Ultra leads (96/100 vs 17/100). In the "battery" category, the Nubia NaviX Ultra leads (85/100 vs 13/100). Value score: ASUS Zenfone 4 Pro ZS551KL — 0/100, Nubia NaviX Ultra — 98/100; 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 Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (98/100 vs 33/100). In the "display" category, the Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (94/100 vs 56/100). In the "camera" category, the Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (96/100 vs 17/100). In the "battery" category, the Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (85/100 vs 13/100). In the "portability" category, the ASUS Zenfone 4 Pro ZS551KL notably outperforms the Nubia NaviX Ultra (78/100 vs 59/100).
Specs comparison
| Specification | ASUS Zenfone 4 Pro ZS551KL | Nubia NaviX Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 835 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 438016 | 3950082 | |
| Geekbench Single | 427 | 3639 | |
| Geekbench Multi | 1500 | 11047 | |
| Display | 5.5" AMOLED | 6.8" LTPO OLED | |
| Resolution | 1080x1920 | 1260x2800 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 3600 mAh | 7100 mAh | |
| Charging | 18W | 90W | |
| Wireless charging | 0W | 50W | |
| Main camera | 12 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 16 MP | 64 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 512GB / 1TB | |
| OS | Android 7.1.1 Nougat | Android 16 | |
| Brightness (peak) | — | 4500 nits | |
| NFC | yes | yes | |
| Dimensions | 156.9×75.6×7.6 mm | 162.1×75.7×7.6 mm | |
| Weight | 175 g | 208 g | |
| Launch price | $599 | $845 |
Camera comparison
ASUS Zenfone 4 Pro ZS551KL
- Main: 12MP f/1.7
- Telephoto: 16MP
- Front: 8MP
Nubia NaviX Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 32MP
Display comparison
ASUS Zenfone 4 Pro ZS551KL
- 5.5" AMOLED
- Resolution: 1080x1920
- Refresh rate: 60 Hz
Nubia NaviX Ultra
- 6.8" LTPO OLED
- Resolution: 1260x2800
- Refresh rate: 144 Hz
Battery and charging
ASUS Zenfone 4 Pro ZS551KL
- 3600 mAh
- Wired: 18W
- No wireless charging
Nubia NaviX Ultra
- 7100 mAh
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared ASUS Zenfone 4 Pro ZS551KL and Nubia NaviX Ultra, covering their specs and all relevant benchmarks.
Nubia NaviX Ultra leads ASUS Zenfone 4 Pro ZS551KL by 88.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $246. ASUS Zenfone 4 Pro ZS551KL was $246 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (98/100 vs 33/100).
display
In the "display" category, the Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (94/100 vs 56/100).
camera
In the "camera" category, the Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (96/100 vs 17/100).
battery
In the "battery" category, the Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL (85/100 vs 13/100).
portability
In the "portability" category, the ASUS Zenfone 4 Pro ZS551KL notably outperforms the Nubia NaviX Ultra (78/100 vs 59/100).
Frequently asked questions
Which is better: the ASUS Zenfone 4 Pro ZS551KL or the Nubia NaviX Ultra?
The Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL by 61 points (92/100 vs 31/100).
What is the rating of the ASUS Zenfone 4 Pro ZS551KL and the Nubia NaviX Ultra?
The ASUS Zenfone 4 Pro ZS551KL has a MobileRank rating of 31/100, the Nubia NaviX Ultra — 92/100.
Which has the better camera: the ASUS Zenfone 4 Pro ZS551KL or the Nubia NaviX Ultra?
The Nubia NaviX Ultra leads on camera score (96/100 vs 17/100).
Which is more powerful: the ASUS Zenfone 4 Pro ZS551KL or the Nubia NaviX Ultra?
The Nubia NaviX Ultra leads on performance (98/100 vs 33/100).
Should you choose the ASUS Zenfone 4 Pro ZS551KL over the Nubia NaviX Ultra?
The Nubia NaviX Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.