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Bird S788
Bird · phone

S788

Siemens A31
Siemens · phone

A31

3

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Launch

2
Announced
2004-04-12
2005-11-01
Status
Discontinued
Discontinued

Network

2
2G bands
  • R-GSM-900
  • P-GSM-900
  • E-GSM-900
  • T-GSM-900
  • DCS-1800
  • T-GSM-900
  • R-GSM-900
  • P-GSM-900
  • E-GSM-900
SIM
  • Single SIM (Mini-SIM)
  • Single SIM (Mini-SIM)

Body

9
Form factor
Bar
–
Height
115 mm
102 mm
Width
45 mm
46 mm
Thickness
14 mm
17.6 mm
Weight
79 g
85 g
Colors
  • Red
  • Grey
  • Ruby Red
  • Anthracite
Back material
Plastic
Plastic
Frame material
Plastic
Glass
QWERTY keyboard
✓ Yes
✕ No

Memory

1
Dedicated card slot
✕ No
✕ No

Display

4
Resolution width
112 px
128 px
Resolution height
80 px
128 px
High refresh rate
✕ No
✕ No
Technology
CSTN
CSTN

Main camera

3
Cameras
  • No
–
HDR
✕ No
✕ No
Panorama
✕ No
✕ No

Selfie camera

3
Cameras
  • No
–
HDR
✕ No
✕ No
Pop-up camera
✕ No
✕ No

Sound

3
3.5mm jack
✕ No
✕ No
Stereo speakers
✕ No
✕ No
Loudspeaker
✕ No
✓ Yes

Sensors

6
Gyroscope
✕ No
✕ No
Compass
✕ No
✕ No
Barometer
✕ No
✕ No
Heart rate
✕ No
✕ No
Accelerometer
✕ No
✕ No
Proximity
✕ No
✕ No

Connectivity

7
Wi-Fi
No
–
Bluetooth
No
–
GPS
✕ No
✕ No
NFC
✕ No
✕ No
Infrared port
✕ No
✕ No
FM radio
✕ No
✕ No
USB
–
USB No

Battery

4
Capacity
670 mAh
820 mAh
Type
Li-ion
Li-ion
Removable
✓ Yes
✓ Yes
Wireless charging
✕ No
✕ No