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).

The Nubia NaviX Ultra significantly outperforms the ASUS Zenfone 4 Pro ZS551KL by 61 points (92/100 vs 31/100).

Profile comparison

Category scores

ASUS Zenfone 4 Pro ZS551KL

Performance 33
Display 56
Camera 17
Battery 13
Portability 78
Value for money 0

Nubia NaviX Ultra

Performance 98
Display 94
Camera 96
Battery 85
Portability 59
Value for money 98

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).

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.

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
17
camera

Nubia NaviX Ultra

  • Main: 200MP f/1.6
  • Ultrawide: 50MP
  • Telephoto: 64MP
  • Front: 32MP
96
camera

Display comparison

ASUS Zenfone 4 Pro ZS551KL

  • 5.5" AMOLED
  • Resolution: 1080x1920
  • Refresh rate: 60 Hz
56
display

Nubia NaviX Ultra

  • 6.8" LTPO OLED
  • Resolution: 1260x2800
  • Refresh rate: 144 Hz
94
display

Battery and charging

ASUS Zenfone 4 Pro ZS551KL

  • 3600 mAh
  • Wired: 18W
  • No wireless charging
13
battery

Nubia NaviX Ultra

  • 7100 mAh
  • Wired: 90W
  • Wireless: 50W
85
battery

Overall performance score

We compared ASUS Zenfone 4 Pro ZS551KL and Nubia NaviX Ultra, covering their specs and all relevant benchmarks.

ASUS Zenfone 4 Pro ZS551KL Qualcomm Snapdragon 835
31/100
438016 AnTuTu
Nubia NaviX Ultra Qualcomm Snapdragon 8 Elite Gen 5
92/100 +88.9%
3950082 AnTuTu

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

ASUS Zenfone 4 Pro ZS551KL

$599

Nubia NaviX Ultra

$845

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.