Manufacturer and Model

Manufacturer
AirOn
Nokia
Phone model
Element
Asha 503 Dual SIM
Year of release
2012
2013

Appearance

Case type
Watch
Monoblock
Body length
45 mm
103 mm
Body width
44 mm
61 mm
Body thickness
14.6 mm
12.7 mm
Weight
110 g
111 g
Volume
28.84 cm³
78.96 cm³
Body materials and finishes
  • Metal
  • Plastic
  • Plastic
Replaceable panels
Colors

Processor (CPU)

Number of processor cores
1
1

Graphics Processor (GPU)

GPU

Primary storage (RAM)

The amount of RAM
64 MB
128 MB

SD card

Types of Supported Memory Cards
  • microSDHC
  • microSD
  • microSDHC
  • microSD
Maximum expandable memory
32 GB
32 GB
Hot swappable memory card

Battery

Battery capacity
550
1200
Battery type
Li-Pol
Li-Ion
Charging the battery from USB
Call duration in GSM networks
3 h
12 h
Standby time in GSM networks
250 h
480 h
Call duration in UMTS (WCDMA) networks
4 h
Standby time on UMTS (WCDMA) networks
840 h
Duration of listening to music
36 h
Video watching duration
12 h
Duration of using Wi-Fi
4 h

Screen

Screen diagonal
1.54 in
3 in
Screen resolution
240 x 240 pixels
320 x 240 pixels
Pixel density
220 ppi
133 ppi
Screen technology
TFT
TFT
Color depth
18 bit
18 bit
Touch screen
Touch screen type
Resistive
Capacitive
Aspect ratio
1
1.333
Auto-rotate screen
Proximity sensor

Main photo/video camera

Camera megapixels
1.3 Mp
5 Mp
Maximum photo resolution
1520 x 855 pixels
2592 x 1944 pixels
Shooting resolution formats
  • Quad HD
  • Full HD
  • HD
The presence of a flash
Flash type
LED
Digital zoom
3 X
Shooting settings
Viewfinder
Other photo settings
  • Color modes: negative
  • Ordinary
  • Sepia
  • Daylight
  • Incandescent light bulb
Video capability
Maximum video resolution
320 x 240 pixels
Movie speed
15 fps
Digital video zoom
1 X
Movie settings
Movie settings list
  • Color modes: negative
  • Ordinary
  • Sepia
  • Daylight
  • Incandescent light bulb

SIM card and calls

Number of SIM-cards
1
2
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
4000
Data exchange between SIM card and internal memory
VoIP telephony

Mobile communications

Cellular generation
3.5G
3.5G
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 900 MHz
  • UMTS 1700 MHz
  • UMTS 1900 MHz
  • UMTS 2100 MHz
  • UMTS 900 MHz
  • UMTS 2100 MHz

Internet data transmission standards

Data transmission standards
  • HSUPA
  • HSDPA
  • EDGE
  • GPRS
  • HSUPA
  • HSDPA
  • EDGE
  • GPRS

Wi-Fi

Built-in Wi-Fi

USB

USB connector
USB connector type
Micro USB
Micro USB
USB standard
2.0
2.0

Bluetooth

Built-in Bluetooth
Bluetooth standard
3.0
3.0
A2DP support
AVRCP support
Other Bluetooth profiles
  • OPP
  • HFP
  • HSP
  • PBAP
  • DUN
  • FTP

Radio

Built-in radio receiver
Radio range
87.5 - 108 МГц
87.5 - 108 МГц
DRM support

Sensors and gauges

Proximity sensor
Accelerometer
Orientation and rotation sensor

Connectors and interfaces

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

Images

Supported image formats
  • PNG
  • JPG
  • EXIF
  • GIF
  • PNG
  • JPG
  • EXIF
  • GIF
Installed image editor

Video

Installed video player
Supported video formats
  • 3GPP
  • MP4
  • H.263
Streaming video

Audio

Installed audio player
Supported audio formats
  • AWB
  • MP3
  • WAV
  • AAC
  • AMR
  • AMR-NB
  • AMR-WB
  • MIDI
  • MP3
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
Pinch zoom
Russified input

Documents and office

Installed Organizer (PIM)
Email
Handwriting recognition

Connectivity and synchronization

PC connection
Synchronization over the mobile network
Synchronization with services
  • MS Outlook
  • Gmail
  • Facebook
  • Twitter
  • Youtube
  • Windows Live Messenger
  • Youtube Messenger
  • Sina Weibo
  • WhatsApp
  • LINE
  • WeChat

Software features

JAVA support
Installed browser
  • HTML
  • WAP
  • HTML
  • WAP

Installed games

Receiving and sending SMS

SMS messages
SMS T9 support
SMS output in the form of a chat
MMS support

Additional features

Standalone mode (flight mode)