| Local Name | P400 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 |
| GPRS | Class 8 |
| EDGE | No |
| Announced | 1Q, 2003 |
| Status | Discontinued |
| Dimensions | 91 x 48 x 23 mm (3.58 x 1.89 x 0.91 in) |
| Weight | 105 g (3.70 oz) |
| SIM | Mini-SIM |
| Display Type | TFD, 65K colors |
| Resolution | 128 x 160 pixels, 7 lines | Swivel and rotate 360 deg - Four way navigation keys - Dynamic font size |
| Card Slot | No |
| Phone Book | 1000 entries, contact groups |
| Call Records | 20 dialed, 20 received, 20 missed calls | 1.2 MB for images - 700 kB for MMS message - 512 KB for Ja |
| Primary Camera | CIF, 352 x 288 pixels, 180 deg rotating lens |
| Video | No |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic ringtones |
| Loudspeaker | No |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | No |
| GPS | No |
| Infrared Port | Yes |
| Radio | No |
| Messaging | SMS, EMS, MMS |
| Browser | WAP 1.2 |
| Clock | Yes |
| Alarm | Yes |
| Games | Yes |
| Java | Yes, MIDP 2.0 |
| Features Summary | Predictive text input, Organizer, Speed dial, Menu shortcuts, Nokia compatible melodies |
| Battery | Li-Ion 900 mAh battery |
| Stand By | Up to 120 h |
| Talk Time | Up to 4 h |
| Colors | Metallic Silver |
| SAR EU | 1.18 W/kg (head) |