The 3110 is a GSM mobile phone handset manufactured by Nokia in Hungary, introduced at CEBIT in March 1997. The 3110 is notable as the first Nokia handset to feature the 'Navi-Key' (a.k.a. D-Pad) menu navigation system. The Navi-Key was featured heavily on Nokia handsets, especially the entry-level models such as the Nokia 1100 in the following years. Unlike its successor, the 3210, and subsequent handsets of similar design, the 3110 had an external antenna. The phone was available with a slim, standard or vibrating battery. It could only be used on a GSM-900 network. The 3110 shared the platform and accessories of the Nokia 8110 "banana phone". The model number was reused by Nokia in 2007 when the company launched the Nokia 3110 classic. The 3110 Classic sports a candybar form factor similar to that of the 3110, but adds modern features such as Bluetooth, camera functionality, audio and video playback and recording, and packet data over EDGE, in addition to tri-band functionality. Unlike subsequent 3000 series mobile phones, its display is not PCD8544 based. Features and specification The 3110 was clearly aimed at business users, with notable features including PC synchronisation, good battery life and conservative black styling. Network: GSM 900 Dimensions: 136 x 45 x 21 mm, 139 cc Weight: 187 g Screen: Monochromatic with green backlight Contacts: 250 SMS Standby Time: 40–95 hours Talktime: 90–165 minutes See also Nokia 3210 Nokia 3310 Nokia 3410 References External links gsmarena.com - Full phone specifications at GSM arena 3110 Mobile phones introduced in 1997