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NEC N900
NEC · phone

N900

Siemens A31
Siemens · phone

A31

3

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Launch

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

Network

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

Body

8
Height
85 mm
102 mm
Width
54 mm
46 mm
Thickness
8.6 mm
17.6 mm
Weight
70 g
85 g
Back material
Plastic
Plastic
Frame material
Glass
Glass
QWERTY keyboard
✕ No
✕ No
Colors
–
  • Ruby Red
  • Anthracite

Memory

1
Dedicated card slot
✕ No
✕ No

Display

8
Size
1.8"
–
Resolution width
120 px
128 px
Resolution height
160 px
128 px
Pixel density
111 ppi
–
High refresh rate
✕ No
✕ No
Display area
10 cm²
–
Screen-to-body ratio
21.9%
–
Technology
TFT
CSTN

Main camera

5
Cameras
  • VGA
–
Flash
LED
–
Video
No
–
HDR
✕ No
✕ No
Panorama
✕ No
✕ No

Selfie camera

2
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

6
Bluetooth
No
–
GPS
✕ No
✕ No
NFC
✕ No
✕ No
Infrared port
✕ No
✕ No
FM radio
✕ No
✕ No
USB
–
USB No

Battery

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