The Innostream INNO A20 mobile phone is a clamshell Triband GSM phone weighing about 105 grams and measuring close to 93.9 x 46.4 x 23 mm. The Innostream INNO A20 mobile phone works with 900 / 1800 / 1900 networks. The Innostream INNO A20 mobile phone comes with a 256k color TFT display with a resolution of 176 x 220 pixels. The Innostream INNO A20 mobile phone has a MMC card slot which can take cards upto 1GB and the phone also contains 128 mb of internal shared memory.

The Innostream INNO A20 mobile phone has a good 2 megapixel camera which can take stills at 1600 x 1200 pixels. The Innostream INNO A20 mobile phone comes with a Mp3/AAC player for audio playback, a Mpeg-4 player for video recording and playback. The Innostream INNO A20 mobile phone does not have a lot of data networks which it supports, but there is support for GPRS at 32-48 kbps. A WAP /xHTML comes in handy to check emails and for browsing the internet. The Innostream INNO A20 mobile phone is capable of handling mp3 as well as 64 channel polyphonic ringtones.

The battery of the Innostream INNO A20 mobile phone lasts for a reported 3 and half hours talktime and over 230 hours of standby time.