Manufacturer and Model

Manufacturer
Nokia
Samsung
Phone model
E51
C5212 Duos
Year of release
2007
2009

Appearance

Case type
Monoblock
Monoblock
Body length
115 mm
113 mm
Body width
46 mm
49 mm
Body thickness
12 mm
14.3 mm
Weight
100 g
98 g
Volume
63.37 cm³
78.32 cm³
Body materials and finishes
  • Metal
  • Plastic
  • Plastic
Colors

Processor (CPU)

Processor model
  • ARM 11
CPU clock speed
369 MHz
Number of processor cores
1

Primary storage (RAM)

The amount of RAM
96 MB

Internal storage

Built-in memory
  • 130 MB
  • 50 MB

SD card

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

Operating system

Operating system
Symbian OS 9.2

Battery

Battery capacity
1050
1000
Battery type
Li-Ion
Li-Ion
Battery charging time
2 h
2 h
Call duration in GSM networks
4 h
9 h
Standby time in GSM networks
312 h
320 h
Duration of listening to music
12 h

Screen

Screen diagonal
2 in
2.2 in
Screen resolution
320 x 240 pixels
220 x 176 pixels
Pixel density
200 ppi
128 ppi
Screen technology
TFT
TFT
Color depth
24 bit
18 bit
Aspect ratio
1.333
1.25
Ambient light sensor

Main photo/video camera

Camera megapixels
2 Mp
1.3 Mp
Maximum photo resolution
1600 x 1200 pixels
1280 x 1024 pixels
Digital zoom
4 X
4 X
Shooting settings
Viewfinder
Video capability
Maximum video resolution
320 x 240 pixels
176 x 144 pixels
Movie speed
15 fps
15 fps
Digital video zoom
4 X
Movie settings

SIM card and calls

Number of SIM-cards
1
2
Mode of operation of multiple SIM-cards
Synchronous
MP3 ringtones
Polyphonic ringtones
Vibration mode
Speakerphone
Conference call
Speed dial
Autodial
Sound indication of talk time
Ability to mute the microphone during a call
Extended phone book
Contacts in the phone book
Unlimited
1000
Data exchange between SIM card and internal memory
VoIP telephony

Mobile communications

Cellular generation
3.5G
2.5G
GSM support
GSM frequencies
  • GSM 850 MHz
  • GSM 900 MHz
  • GSM 1800 MHz
  • GSM 1900 MHz
  • GSM 900 MHz
  • GSM 1800 MHz
UMTS support
UMTS frequencies
  • UMTS 850 MHz
  • UMTS 2100 MHz

Internet data transmission standards

Data transmission standards
  • HSDPA
  • EDGE
  • GPRS
  • HSCSD
  • EDGE
  • GPRS

Wi-Fi

Built-in Wi-Fi

USB

USB connector
USB connector type
Mini USB
USB standard
2.0
2.0

Bluetooth

Built-in Bluetooth
Bluetooth standard
2.0 + EDR
2.0
A2DP support
AVRCP support
Bluetooth print support
Other Bluetooth profiles
  • GAVDP
  • HFP
  • HSP
  • OPP

Radio

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

Sensors and gauges

Ambient light sensor

Connectors and interfaces

USB connector
Mini USB
TRS jack (mini/micro jack)
2.5 mm
Infrared port (IrDA)

Images

Supported image formats
  • PNG
  • JPEG
  • BMP
  • JPEG
  • GIF
  • BMP
PictBridge support

Video

Installed video player
Supported video formats
  • 3GPP
  • H.264
  • H.263
  • H.264
Streaming video

Audio

Installed audio player
Supported audio formats
  • AAC
  • AMR-NB
  • AMR-WB
  • M4A
  • MP3
  • AAC
  • eAAC+
  • MP3
  • WMA
MP3 support
Streaming audio
Number of polyphony voices
64
64
Dictaphone
Voice notes
TRS jack (mini/micro jack)
2.5 mm

Control elements

Standard keypad
Russified input

Documents and office

Installed Organizer (PIM)
Office document support
Supported document formats
  • PDF
  • ZIP
Bluetooth print support
Email

Connectivity and synchronization

PC connection
Synchronization over the mobile network

Software features

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

Installed games
Installed games
  • Cannonball
  • Checkers Deluxe
  • Tetris Mania
  • Midnight Pool
  • World Series of Poker
  • Brain Challenge Vol2
  • BrickBreakerRevolution
  • Diamond Twister

Receiving and sending SMS

SMS messages
SMS T9 support
MMS support

Security

Remote phone lock

Additional features

Standalone mode (flight mode)
Push-To-Talk function

SAR level

SAR level
1.4 W/kg
0.62 W/kg