This UK variant of the Sony Ericsson K600i was made specifically for the Three UK network. It was the first Sony Ericsson phone to be offered on Three's network.
At the time it was considered to be an extremely compact 3G phone at only 18.8mm thick. It featured a 1.3-megapixel camera and there was also an integrated FM radio. There was also a forward-facing camera to support video calls - a key feature on Three's network.
Another variant of the K600i, known as the
V600i was offered exclusively on the Vodafone network.