Snap sold just 220,000 units of the original augemeted reality glasses last year, eventually writing off unsold inventory worth almost $40m.
The new Spectacles are available from Snap’s website, at a price of £149.99, and are launching simultaneously in the UK, US, Canada and France, and more widely across Europe the following week.
The Spectacles can take video in short 10-second increments, recording in a circular format which can be viewed in the Snapchat app or exported for other uses.
This time, they can also take still photos – with a 1642 pixel resolution, 50% higher than the videos shot by the previous version – and they can shoot underwater. Stereo mics, combined with post-processing to reduce noise, also let the glasses capture clearer, higher quality sound.