| Local Name | 6303i classic |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 |
| GPRS | Class 32 |
| EDGE | Class 32 |
| Announced | 2010, February |
| Status | Available. Released 2010, March |
| Dimensions | 108.8 x 46.2 x 11.7 mm, 57 cc (4.28 x 1.82 x 0.46 in) |
| Weight | 96 g (3.39 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 16M colors |
| Screen Size | 2.2 inches (~29.8% screen-to-body ratio) |
| Resolution | 240 x 320 pixels (~182 ppi pixel density) |
| Card Slot | microSD, up to 16 GB, 2 GB included |
| Phone Book | 2000 entries, Photocall |
| Call Records | 20 dialed, 20 received, 20 missed calls |
| Internal Memory | 55 MB |
| Primary Camera | 3.15 MP, 2048 x 1536 pixels, fixed-focus, dual LED flash |
| Video | 320p@8fps |
| Secondary Camera | No |
| Alert Types | Vibration, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | No |
| Bluetooth | v2.1, A2DP |
| GPS | No |
| Radio | Stereo FM radio with RDS |
| USB | microUSB v2.0 |
| Messaging | SMS, MMS, Email, IM |
| Browser | WAP 2.0/xHTML, HTML, Adobe Flash Lite |
| Games | 8 + Downloadable |
| Java | Yes, MIDP 2.1 |
| Features Summary | Nokia Maps 2.0, H.264 player, MP3/WAV/eAAC+/WMA player, Organizer, Voice memo/dial, Predictive text input |
| Battery | Li-Ion 1050 mAh battery (BL-5CT) |
| Stand By | Up to 515 h |
| Talk Time | Up 8 h |
| Music Play | Up to 30 h |
| Colors | Steel, Matt Black, Chestnut, Illuvial pink, White on Silver, Khaki on Gold |
| SAR US | 0.79 W/kg (head) 0.23 W/kg (body) |
| SAR EU | 1.11 W/kg (head) |