The Microsoft-owned voice, text and video messaging service is heading to smartwatch wearers' wrists.

The new version of the Android smartphone app, Skype 6.4 for Android, won't allow for on-the-fly video calling -- well, not until Android Wear smartwatches get front-facing video cameras -- but it will enable users to respond to messages via emoji, doodles, pre-programmed default messages and to take a voice call hands-free.

The updated app will also support speech to text, meaning that dictating a reply via a smartwatch should also be simple.