The Sony Ericsson K800i features a 3.15 MP camera, a music player, a FM radio and a large TFT display screen. The mobile works on 2G as well as 3G networks. The dimensions of the handset are 105 x 47 x 22 mm and its weight is 115 gms. These features allow people to carry the set anywhere with ease.

Acceding to the increasing demands for more connectivity options, the handset has options such as GPRS, HSCSD, 3G, Bluetooth, Infrared and USB port. These options allow people to access files and also transfer them with ease. Wireless options as well as cords can be used to transfer files from one device to another. Bluetooth serves as the best option for sending files to other devices wirelessly. This sony ericsson phone is also very efficient to transfer information by the means of messaging. Its capabilities when it comes to messaging include sending emails, MMS and SMS. The browser allows users to surf the Internet at a high speed. The users can download files and store them for future use.

The 3.15 MP camera of the set gives 2048 x 1536 pixels resolution. This camera can be used to capture pictures and record videos at this sharp resolution. The secondary camera is good for making video calls. The phone is excellent for entertainment purposes as well. The music player can play music on formats such as MP3, AAC and MPEG4. The FM radio is also good for it brings entertainment in the form of music, songs, comedy programs and updates on information. There is also an image viewer that allows viewing of captured images. The images gets displayed on the 2 inch display screen of the handset. The screen gives a resolution of 240 x 320 pixels and supports 256K colours.

The Li-Ion battery of the Sony Ericsson K800i gives a standby time of 350 hr and a talktime of 7 h. It becomes possible for the user to use the mobile for long hours once it is recharged. The gadget has 64 MB internal memory and thus storing of large number of files is not an issue with this handset.