Entry-level · 2017

Asus Zenfone 4 Pro ZS551KL

Name: Asus Zenfone 4 Pro ZS551KL
Brand: Asus

Our Take CPU benches near recent entry-level phones like the Samsung Galaxy A13 (SM-A137)

A basic entry-level phone with an AMOLED screen and stabilised camera — but a smaller battery and slow 18W charging show its age.

Best for Streaming · reading · social

Strength AMOLED screen, Stabilised camera (OIS)

Watch out Smaller battery (3600mAh), 18W charging (slow)

Skip if Heavy gaming or multitasking

5.5″ AMOLED · 60Hz

Snapdragon 835 6 / 64 GB

3600 mAh 18W charging

16 MP 2 rear · 8 MP selfie

4G LTE NFC

Compare

Full specifications

What stands out

Pro camera extras: optical zoom, RAW, laser AF, manual focus

Display

5.5″ · AMOLED · 1080 × 1920 · 60 Hz · HDR

OLED display

A clean OLED panel — colours pop and sunlight visibility is solid.

Screen size

5.5"

Panel type

AMOLED

OLED

Resolution

1080 × 1920 px

Refresh rate

60 Hz

Slow for 2026

HDR

Supported

Protection

Corning Gorilla Glass 5

Performance

Qualcomm MSM8998 Snapdragon 835 (10 nm) · 8-core 2.45 GHz · Adreno 540

Basic CPU

Best for messaging, calls, and light browsing. Avoid heavy multitasking.

Chipset

Qualcomm MSM8998 Snapdragon 835 (10 nm)

Current CPU tier

Entry-level

Launch class

Mid-range

AnTuTu

175,256

CPU

8-core, 2.45 GHz

GPU

Adreno 540

Process

10 nm

CPU layout

4x Kryo 280 2.45 GHz + 4x Kryo 280 1.9 GHz

Camera

12 MP f/1.7 main · OIS · 8 MP selfie · 4K video

OIS + 4K

Stabilised main camera holds up in low light. Front camera is fine for daylight selfies.

Main camera

12 MP f/1.7

OIS

Telephoto

16 MP

Front camera

8 MP f/1.9

Main sensor

Sony IMX362 Exmor RS, 1/2.55", 1.4µm

Slow motion

Yes, 120 fps

Camera extras

optical zoom, RAW, laser AF, manual focus

Video

4K @ 30 fps

4K video

Battery

3600 mAh · 18 W wired

Battery is average for the class — fine for daily use.

Capacity

3600 mAh

Wired charging

18 W

Slow for 2026

Removable

Memory

6 GB RAM · 64 GB · expandable

Tight

RAM

6 GB

Storage

64 GB

Fills fast

Expandable

Yes

Connectivity

4G LTE · NFC · Wi-Fi 5

4G LTE

Yes

NFC

Yes

Contactless

Wi-Fi

Wi-Fi 5

Bluetooth

5.0

GPS systems

GPS, A-GPS, GLONASS, Beidou

USB

USB-C

USB OTG

Supported

3.5mm jack

Yes

IR blaster

SIM

1× Nano-SIM

Build & Design

175 g · 7.6 mm

Height

156.9 mm

Width

75.6 mm

Thickness

7.6 mm

Weight

175 g

Sensors

Fingerprint (front-mounted) · accelerometer · gyro · proximity

Sensors

Fingerprint (front-mounted), accelerometer, gyro, proximity, compass

Specifications sourced from GSMArena

How it stacks up against the rest.

Quick reads against a few phones in the same price tier. Tap any one for the deep comparison.

Apple iPhone X

Loses on most 1 win 4 losses

33% larger battery capacity

3,600 mAh vs 2,716 mAh battery

Lower-resolution screen

1080 × 1920 vs 1125 × 2436 resolution

Lower benchmark score

175k vs 598k AnTuTu · Entry-level vs Mid-range tier

Lower video ceiling

4K @ 30 fps vs 4K @ 60 fps video

Less protected

None vs IP67 protection

Full comparison

Samsung Galaxy S8

Loses on most 1 win 3 losses

20% larger battery capacity

3,600 mAh vs 3,000 mAh battery

Lower-resolution screen

AMOLED vs Super AMOLED panel · 1080 × 1920 vs 1440 × 2960 resolution

Lower benchmark score

175k vs 202k AnTuTu

Less protected

None vs IP68 protection · 175 g vs 155 g

Full comparison

Where to buy

We don't have any listings for this phone yet. Try searching on Konga or Jiji.

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Similar Phones

How each one compares to the Asus Zenfone 4 Pro ZS551KL.

Entry-level

Asus Zenfone 4 Pro ZS551KL

Full specifications

Display

Performance

Camera

Battery

Memory

Connectivity

Build & Design

Sensors

How it stacks up against the rest.

Apple iPhone X

Samsung Galaxy S8

Where to buy

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