Siemens S75 vs Siemens A31 Specs Comparison

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

Display

Resolution:

176 x 132 pixels
128 x 128 pixels

Technology:

TFT
STN

Colors:

262 144
65 536

Hardware

Internal storage:

0.02GB
0.0015GB

Storage expansion:

RS-MMC

Battery

Capacity:

820 mAh
820 mAh

Type:

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

Camera

Rear:

Single camera

Main camera:

1.3 MP

Flash:

Yes

Video recording:

Yes

Design

Dimensions:

4.06 x 1.85 x 0.73 inches (103 x 47 x 18.5 mm)
4.01 x 1.81 x 0.69 inches (102 x 46 x 18 mm)

Weight:

3.49 oz (99.0 g)
3.00 oz (85.0 g)

Features:

Soft keys
Soft keys

Cellular

Connectivity & Features

Bluetooth:

1.2

USB:

USB 2.0

External antenna:

Yes

Other:

Computer sync, Infrared, SyncML

Phone features

Notifications:

Music ringtones (MP3), Vibration, Speakerphone
Polyphonic ringtones (32 voices), Vibration, Speakerphone

Other features:

Voice recording

Regulatory Approval

FCC approval:

Date approved:

Oct 14, 2005
Mar 15, 2006

FCC ID value:

PWX-S75
PWX-A31A

Measured SAR:

Head:

0.32 W/kg
0.44 W/kg

Measured in:

1900 MHz
1900 MHz

Body:

0.70 W/kg
0.95 W/kg

Measured in:

1900 MHz
1900 MHz

Availability

Officially announced:

Jun 30, 2005
Nov 24, 2005
FCC OKs Cingular\'s purchase of AT&T Wireless