Siemens A31 vs Benq-Siemens EF81 Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Resolution:

128 x 128 pixels
320 x 240 pixels

Technology:

STN
TFT

Colors:

65 536
262 144

Additional display:

160 pixels 120 x, TFT, Colors: 262 144

Hardware

Internal storage:

0.0015GB
0.064GB

Storage expansion:

microSD

Battery

Capacity:

820 mAh
950 mAh

Type:

Li - Ion, User replaceable
Li - Ion, User replaceable

Camera

Rear:

Swivel

Main camera:

2 MP

Video recording:

Yes

Features:

Video calling

Design

Dimensions:

4.01 x 1.81 x 0.69 inches (102 x 46 x 18 mm)
3.70 x 2.00 x 0.63 inches (94 x 51 x 16 mm)

Weight:

3.00 oz (85.0 g)
3.88 oz (110.0 g)

Features:

Soft keys
Music control keys, Soft keys

Cellular

3G:

Bands 1(2100)

Connectivity & Features

USB:

Yes

External antenna:

Yes

Other:

Computer sync

Phone features

Notifications:

Polyphonic ringtones (32 voices), Vibration, Speakerphone
Music ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Phone profiles, Speakerphone

Other features:

Voice dialing

Regulatory Approval

FCC approval:

Date approved:

Mar 15, 2006
Mar 08, 2006

FCC ID value:

PWX-A31A
PWX-EF81

Measured SAR:

Head:

0.44 W/kg
0.42 W/kg

Measured in:

1900 MHz
1900 MHz

Body:

0.95 W/kg
0.53 W/kg

Measured in:

1900 MHz
1900 MHz

Availability

Officially announced:

Nov 24, 2005
Jan 17, 2006
FCC OKs Cingular\'s purchase of AT&T Wireless