| Local Name | N78 |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 900 / 2100 | HSDPA 850 / 1900 - American version |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| Speed | HSPA 3.6/0.384 Mbps |
| GPRS | Class 11, 118.4 kbits |
| EDGE | Class 32, 296 / 177.6 kbits |
| Announced | 2008, February. Released 2008, May |
| Status | Discontinued |
| Dimensions | 113 x 49 x 15.1 mm, 76.5 cc (4.45 x 1.93 x 0.59 in) |
| Weight | 101.8 g (3.56 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 16M colors |
| Screen Size | 2.4 inches (~32.2% screen-to-body ratio) |
| Resolution | 240 x 320 pixels (~167 ppi pixel density) | Touch-sensitive Navi wheel |
| OS | Symbian OS, S60 rel. 3.2 |
| CPU | 369 MHz ARM 11 |
| Card Slot | microSD |
| Internal Memory | 76 MB, 96 MB RAM |
| Primary Camera | 3.15 MP, 2048 x 1536 pixels, autofocus, Carl Zeiss optics, LED flash |
| Video | 480p@15fps |
| Secondary Camera | CIF videocall camera |
| Alert Types | Vibration; Downloadable polyphonic, MP3 ringtones |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g, UPnP technology |
| Bluetooth | v2.0, A2DP |
| GPS | Yes, with A-GPS; Nokia Maps |
| Radio | Stereo FM radio with RDS; FM transmitter; Visual radio |
| USB | microUSB v2.0 |
| Messaging | SMS, MMS, Email, Instant Messaging |
| Browser | WAP 2.0/xHTML, HTML, RSS feeds |
| Java | Yes, MIDP 2.0 |
| Features Summary | WMV/RV/MP4/3GP player, MP3/WMA/WAV/RA/AAC/M4A player, Push to Talk, Voice command/dial, Organizer, Printing, Document viewer (Word, Excel, PowerPoint, PDF), Predictive text input, Photo/video editor |
| Battery | Li-Ion 1200 mAh battery (BL-6F) |
| Stand By | Up to 320 h (2G) / 312 h (3G) |
| Talk Time | Up to 4 h 20 min (2G) / 3 h 10 min (3G) |
| Colors | Brown, Blue, White |
| SAR US | 1.26 W/kg (head) 1.04 W/kg (body) |
| SAR EU | 1.00 W/kg (head) |
