Band tracks distance , pulse , calories , sleep quality and even UV exposure . It doubles up as a smartwatch to show Facebook posts , texts and emails . Band was released in the US last year but was only sold in Microsoft Stores . It is now available to pre-order in the UK and goes on sale on 15 April . The Band 's battery life lasts more than two days - despite having a coloured screen , vibrations and is monitoring heart rate constantly . Apple Watch Series 3 : This app is available across Windows Phone , Android , iOS and on desktop .
Band tracks distance , pulse , calories , sleep quality and even UV exposure . It doubles up as a smartwatch to show Facebook posts , texts and emails . Band was released in the US last year but was only sold in Microsoft Stores . It is now available to pre-order in the UK and goes on sale on 15 April . The Band 's battery life lasts more than two days - despite having a coloured screen , vibrations and is monitoring heart rate constantly . All of these features can be customised on the Microsoft Health app . This app is available across Windows Phone , Android , iOS and on desktop .