Samsung A400
| Network | 2G 3G | GSM 900 / 1800 |
| Size | Dimensions Weight Display | 70 x 48 x 20 mm 80 gram Grayscale graphic, 4 shades 128 x 96 pixels, 6 lines |
| Memory | Phonebook Call records Internal Card slot | 100 entries, 5 contact groups 10 dialed, 10 received, 10 missed calls |
| Data | GPRS EDGE 3G WLAN Bluetooth Infrared port USB | Yes |
| Features | OS CPU Messaging Ringtones Browser Radio GPS Games Camera Video Colors Java | SMS Vibration; monophonic ringtones, composer WAP 1.1 Yes - Four way navigation keys - Dynamic font size - Softkeys - Message templates - Predictive text input - Organizer - Speed dial - Menu shortcuts - Clock - Calendar - Alarm |
| Battery | Stand-by Talk time | Standard Li-Ion battery Up to 70 h Up to 2.5 h |
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