Manufacturer and Model

Manufacturer
Porsche
Acer
Phone model
P9521
Liquid X2
Year of release
2008
2015

Appearance

Case type
Folding
Monoblock
Body length
92 mm
153 mm
Body width
48 mm
79 mm
Body thickness
17.8 mm
8.2 mm
Weight
139 g
165 g
Volume
78.67 cm³
99.11 cm³
Body materials and finishes
  • Metal
  • Plastic
Colors

Processor (CPU)

Processor model
  • MediaTek MT6753
CPU clock speed
1300 MHz
Number of processor cores
8
Level 1 cache (L1)
32 + 32 kB
Level 2 cache (L2)
512 kB
Processor size
64 bits
Instruction set architecture
ARMv8-A
Manufacturing process
28 nm

Graphics Processor (GPU)

GPU
GPU model
  • ARM Mali-T720 MP3
GPU clock speed
600 MHz
Number of GPU cores
2

Primary storage (RAM)

The amount of RAM
3 GB
RAM type
LPDDR3
RAM frequency
640 MHz
Number of RAM channels
1

Internal storage

Built-in memory
  • 22 MB
  • 32 GB

SD card

Types of Supported Memory Cards
  • microSD
  • microSDXC
  • microSDHC
  • microSD
Maximum expandable memory
32 GB

Mainboard

Chipset
  • MediaTek MT6735

Operating system

Operating system
Android 5.1

Battery

Battery capacity
770
4000
Battery type
Li-Ion
Li-Ion
Removable battery
Charging the battery from USB
Call duration in GSM networks
3 h 30 min
23 h
Standby time in GSM networks
240 h
820 h
Call duration in UMTS (WCDMA) networks
23 h
Standby time on UMTS (WCDMA) networks
820 h
Duration of listening to music
7 h

Screen

Screen diagonal
2.2 in
5.5 in
Screen resolution
320 x 240 pixels
1280 x 720 pixels
Resolution formats
  • HD
Pixel density
182 ppi
267 ppi
Screen technology
AMOLED
IPS
Color depth
18 bit
24 bit
Touch screen
Touch screen type
Capacitive
Aspect ratio
1.333
1.778
Auto-rotate screen
Ambient light sensor
Proximity sensor

Second screen

Built-in second screen

Main photo/video camera

Camera megapixels
3.2 Mp
13 Mp
Maximum photo resolution
2048 x 1536 pixels
4807 x 2704 pixels
Shooting resolution formats
  • Full HD
  • HD
  • Ultra HD
  • Quad HD
  • Full HD
  • HD
The presence of a flash
Flash type
LED
LED
Photomatrix type
CMOS
Aperture
f/1.8
Shooting settings
Autofocus
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
Video capability
Maximum video resolution
1920 x 1080 pixels
Movie speed
30 fps
Movie settings
Movie settings list
  • White balance
  • Color effects
  • Scene selection mode

Front photo/video camera

Front camera megapixels
13 Mp
Maximum photo resolution
4807 x 2704 pixels
Shooting resolution formats
  • Ultra HD
  • Quad HD
  • Full HD
  • HD
Aperture
f/1.8
Front camera video
Maximum video resolution
1920 x 1080 pixels

SIM card and calls

Number of SIM-cards
1
3
Mode of operation of multiple SIM-cards
Alternating
SIM card type
Micro-SIM
MP3 ringtones
Polyphonic ringtones
Vibration mode
Speakerphone
Conference call
Speed dial
Video calls
Second microphone
Autodial
Noise reduction during a call
Ability to mute the microphone during a call
Extended phone book
Contacts in the phone book
1000
Unlimited
Data exchange between SIM card and internal memory

Mobile communications

Cellular generation
2.5G
4.5G
GSM support
GSM frequencies
  • 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 1700 MHz
  • UMTS 1900 MHz
  • UMTS 2100 MHz
LTE support
LTE frequencies
  • LTE 700 MHz
  • LTE 800 MHz
  • LTE 900 MHz
  • LTE 1800 MHz
  • LTE 2100 MHz
  • LTE 2600 MHz

Internet data transmission standards

LTE standards
  • LTE Cat 4
Data transmission standards
  • EDGE
  • GPRS
  • HSPA+
  • HSUPA
  • HSDPA
  • EDGE
  • GPRS

Wi-Fi

Built-in Wi-Fi
Wi-Fi standards
  • 802.11b
  • 802.11g
  • 802.11n
Wi-Fi hotspot mode

USB

USB connector
USB connector type
Micro USB
USB standard
1.1
2.0
USB OTG support
USB host support
USB Mass Storage support

Bluetooth

Built-in Bluetooth
Bluetooth standard
1.2
4.0
Bluetooth LE support
A2DP support

Navigation and positioning

Built-in GPS
A-GPS support
Built-in digital compass

Radio

Built-in radio receiver
Radio range
87.5 - 108 МГц

Sensors and gauges

Ambient light sensor
Proximity sensor
Accelerometer
Magnetometer
Hall sensor

Connectors and interfaces

USB connector
Micro USB
TRS jack (mini/micro jack)
3.5 mm

Images

Supported image formats
  • PNG
  • JPEG
  • GIF
  • BMP
Installed image editor
Geo tags

Video

Installed video player
Supported video formats
  • MPEG-4
  • 3GPP
  • H.264
  • MP4
  • MPEG-4
  • AVI
  • 3GPP
  • 3GPP
  • Xvid
  • WMV
Video resolution formats
  • Full HD
  • HD
Streaming video
Geo tags

Audio

Installed audio player
Supported audio formats
  • AAC
  • AAC+
  • AMR
  • MIDI
  • MP3
  • WAV
  • AAC
  • eAAC+
  • AMR
  • AMR-NB
  • FLAC
  • MIDI
  • MP3
  • OGG
  • WMA
  • WAV
MP3 support
Streaming audio
Number of polyphony voices
32
Dictaphone
Voice notes
TRS jack (mini/micro jack)
3.5 mm

Control elements

Touch input
Multitouch
Standard keypad
Pinch zoom
Russified input

Documents and office

Installed Organizer (PIM)
Office document support
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

Software features

JAVA support
Installed browser
  • HTML
  • WAP
  • HTML
  • HTML5
  • CSS3
  • WAP

Installed games

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)