Comparison of Doogee X20 and ASUS ZenFone Selfie ZD551KL 16Gb smartphones based on their characteristics

Doogee X20

ASUS ZenFone Selfie ZD551KL 16Gb

Manufacturer and Model

Manufacturer

Doogee

ASUS

Phone model

X20

ZenFone Selfie ZD551KL 16Gb

Year of release

2017

2015

Appearance

Case type

Monoblock

Monoblock

Body length

146 mm

157 mm

Body width

72 mm

77 mm

Body thickness

8.8 mm

10.8 mm

Weight

174 g

170 g

Volume

92.06 cm³

130.48 cm³

Body materials and finishes

• Plastic

• Plastic

Colors

• Black
• Silver
• Golden

• Light blue
• Pink
• White

Processor (CPU)

Processor model

• MediaTek MT6580

• Qualcomm Snapdragon 615 MSM8939

CPU clock speed

1300 MHz

1700 MHz

Number of processor cores

4

8

Level 1 cache (L1)

32 + 32 kB

Level 2 cache (L2)

512 kB

Processor size

32 bits

Instruction set architecture

ARMv7

Manufacturing process

28 nm

Graphics Processor (GPU)

GPU

GPU model

• ARM Mali-400 MP2

• Adreno 405

GPU clock speed

500 MHz

Number of GPU cores

2

Primary storage (RAM)

The amount of RAM

2 GB

2 GB

RAM frequency

533 MHz

Number of RAM channels

1

Internal storage

Built-in memory

• 16 GB

• 16 GB

SD card

Types of Supported Memory Cards

• microSDXC
• microSDHC
• microSD

• microSDXC
• microSDHC
• microSD

Maximum expandable memory

64 GB

128 GB

Hot swappable memory card

Mainboard

Chipset

• MediaTek MT6580

Operating system

Operating system

Android 7.0

Android 5.0

Battery

Battery capacity

2580

3000

Battery type

Li-Ion

Li-Pol

Removable battery

Charging the battery from USB

Adapter output power

• 5 V / 1 A

Screen

Screen diagonal

5 in

5.5 in

Screen resolution

1280 x 720 pixels

1920 x 1080 pixels

Resolution formats

• HD

• Full HD
• HD

Pixel density

294 ppi

401 ppi

Screen technology

IPS

IPS

Color depth

24 bit

24 bit

Touch screen

Touch screen type

Capacitive

Capacitive

Anti-scratch screen

Aspect ratio

1.778

1.778

Contrast ratio

1000:1

Auto-rotate screen

Ambient light sensor

Proximity sensor

Main photo/video camera

Camera megapixels

5 Mp

13 Mp

Maximum photo resolution

2981 x 1677 pixels

4096 x 2304 pixels

Shooting resolution formats

• Quad HD
• Full HD
• HD

• Ultra HD
• Quad HD
• Full HD
• HD

Dual camera

The presence of a flash

Flash type

LED

Dual LED

Photomatrix type

CMOS

Aperture

f/2.8

Shooting settings

Autofocus

Auto exposure

Face detector

Panoramic photography

HDR photography

Viewfinder

Continuous photography

Touch focus

Exposure compensation

Self-timer

White balance

ISO setting

Scene selection

Other photo settings

• Serial shooting
• Panoramic shooting
• Hdr shooting
• Face detection

• Serial shooting
• Panoramic shooting
• Hdr shooting
• Face detection

Video capability

Maximum video resolution

1920 x 1080 pixels

1920 x 1080 pixels

Movie speed

30 fps

30 fps

Movie settings

Movie settings list

• White balance
• Color effects
• Scene selection mode

• White balance
• Color effects
• Hdr
• Scene selection mode

Front photo/video camera

Front camera megapixels

2 Mp

13 Mp

Maximum photo resolution

1886 x 1061 pixels

4807 x 2704 pixels

Shooting resolution formats

• Ultra HD
• Quad HD
• Full HD
• HD

Photomatrix type

CMOS

Front camera video

Maximum video resolution

640 x 480 pixels

SIM card and calls

Number of SIM-cards

2

2

Mode of operation of multiple SIM-cards

Alternating

Alternating

SIM card type

Micro-SIM + Nano-SIM

Micro-SIM

MP3 ringtones

Polyphonic ringtones

Vibration mode

Speakerphone

Conference call

Speed dial

Video calls

Second microphone

Noise reduction during a call

Ability to mute the microphone during a call

Extended phone book

Contacts in the phone book

Unlimited

Unlimited

Data exchange between SIM card and internal memory

Mobile communications

Cellular generation

3.5G

4G

GSM support

GSM frequencies

• GSM 850 MHz
• GSM 900 MHz
• GSM 1800 MHz
• GSM 1900 MHz

• GSM 850 MHz
• GSM 900 MHz
• GSM 1800 MHz
• GSM 1900 MHz

UMTS support

UMTS frequencies

• UMTS 850 MHz
• UMTS 900 MHz
• UMTS 2100 MHz

• UMTS 900 MHz
• UMTS 2100 MHz

LTE support

LTE-Advanced support

Internet data transmission standards

Data transmission standards

• HSPA+
• HSUPA
• HSDPA
• EDGE
• GPRS

• HSPA+
• HSUPA
• HSDPA
• EDGE
• GPRS

Wi-Fi

Built-in Wi-Fi

Wi-Fi standards

• 802.11b
• 802.11g
• 802.11n

Wi-Fi Direct support

Wi-Fi hotspot mode

USB

USB connector

USB connector type

Micro USB

Micro USB

USB standard

2.0

2.0

USB host support

USB Mass Storage support

Bluetooth

Built-in Bluetooth

Bluetooth standard

4.0

4.0

A2DP support

Other Bluetooth profiles

• EDR

Navigation and positioning

Built-in GPS

A-GPS support

Installed GLONASS

Built-in digital compass

Radio

Built-in radio receiver

Radio range

87.5 - 108 МГц

87.5 - 108 МГц

Sensors and gauges

Ambient light sensor

Proximity sensor

Accelerometer

Orientation and rotation sensor

Magnetometer

Connectors and interfaces

USB connector

Micro USB

Micro USB

TRS jack (mini/micro jack)

3.5 mm

3.5 mm

Images

Supported image formats

• PNG
• JPEG
• GIF
• BMP

• PNG
• JPG
• GIF
• BMP

Installed image editor

Geo tags

Video

Installed video player

Supported video formats

• MP4
• MPEG-4
• AVI
• 3GPP
• 3GPP
• Xvid
• WMV

• MP4
• AVI
• 3GPP
• WMV

Video resolution formats

• Full HD
• HD

• Full HD
• HD

Streaming video

Geo tags

Audio

Installed audio player

Supported audio formats

• AAC
• eAAC+
• AMR
• AMR-NB
• FLAC
• MIDI
• MP3
• OGG
• WMA
• WAV

• AAC
• MIDI
• MP3
• WMA
• WAV

MP3 support

Streaming audio

Identifier of songs

Dictaphone

Voice notes

TRS jack (mini/micro jack)

3.5 mm

3.5 mm

Control elements

Touch input

Multitouch

Pinch zoom

Russified input

Documents and office

Installed Organizer (PIM)

Office document support

Supported document formats

• PDF

Email

IMAP4 protocol support

Convert speech to text

Connectivity and synchronization

PC connection

Tethering support

Synchronization over the mobile network

OTA sync

Synchronization with services

• Gmail
• Gtalk
• Facebook
• Twitter
• Youtube
• Google search
• Google maps

• Gmail
• Gtalk
• Facebook
• Twitter
• Youtube
• Google search
• Google maps

Software features

Installed browser

• HTML
• HTML5
• CSS3
• WAP

• HTML
• WAP

Receiving and sending SMS

SMS messages

SMS T9 support

SMS output in the form of a chat

MMS support

Security

Installed VPN

Additional features

Standalone mode (flight mode)