The Pebble Time smartwatch has gone on sale in the UK through online retailers including Amazon,Firebox and Widget.
The £180 smartwatch can work with both iOS and Android based devices and is expected to give competition to Apple Watch.
It is the first product by the company to have a colour display that is guarded by 2.5D glass.
The watch has a thin curved design along with a durable glass lens, with the batterry able to last up to 7 days.
Pebble Time is waterproof up to 30 meters and features apps from Jawbone, Fitocracy, and Runkeeper.
It works on a new version of the Pebble operating system and it has a new timeline interface where information is broken into pins that lets you see at a glance content like calendar events, weather, sports scores, breaking news, missed calls etc.
The watch also works with music steaming site Pandora and with the built in microphone users can take notes or replying to messages by voice.
Widget managing director David Elder said: "Pebble Time is one of the most eagerly awaited wearables in history.
"We’ve been amazed at the appetite for the device and we’re thrilled to be able to announce that the wait is now over. We look forward to seeing the reaction from Pebble’s passionate fans across the UK and Europe."