BenQ-Siemens EF51

Network
Technology
GSM

2G bands
GSM 900 / 1800 / 1900

 
GSM 850 / 1800 / 1900 – US version

GPRS
Class 10

EDGE
No

Launch
Announced
2006, February

Status
Discontinued

Body
Dimensions
89 x 49 x 18 mm (3.50 x 1.93 x 0.71 in)

Weight
95 g (3.35 oz)

SIM
Mini-SIM

Display
Type
TFT, 256K colors

Size
2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio)

Resolution
120 x 128 pixels (~80 ppi density)

Memory
Card slot
miniSD

Phonebook
Yes, Photo call

Call records
10 dialed, 10 received, 10 missed calls

Internal
20MB

Main Camera
Single
1.3 MP

Video
No

Selfie camera
 
No

Sound
Loudspeaker
No

Alert types
Vibration; Downloadable polyphonic, MP3 ringtones

3.5mm jack
No

 3D surround sound

Comms
WLAN
No

Bluetooth
1.2, A2DP

Positioning
No

Radio
FM radio

USB
Proprietary

Features
Sensors

Messaging
SMS, MMS

Browser
WAP 2.0/xHTML

Games
Yes + downloadable

Java
Yes, MIDP 2.0

 WMA/MP3/AAC/AAC+ player
Predictive text input
Voice memo
Stopwatch
Organizer

Battery
Type
Removable Li-Ion 870 mAh battery

Stand-by
Up to 200 h

Talk time
Up to 4 h

Misc
Colors
Flashy White, Black