DHAKA: Microsoft has unveiled a wearable device that can track a user's sleep and exercise as well as connect to a health service on smartphones.

The Microsoft Band will retail for $199 (£125) on the company's online store.

The device can operate for two days on a single charge and has 10 sensors that can track heart rate, calories, stress and even a person's sun exposure.

"This is just the beginning of a multi-year vision for Microsoft in the health & fitness and wearables category," the company said in an emailed statement.

"We want to enter this space in a deliberate and measured fashion and as such are launching first in the United States." reports BBC.

Technology giants Apple, Samsung and Google have all released health initiatives and are looking to further develop the growing demand for wearable devices.

However, Microsoft's device is distinctive because it will be able to work with all the major mobile ecosystems as well as connect to social networks such as Facebook and Twitter.

Details about the Microsoft Band were leaked on Wednesday after companion applications for Windows, Android and Mac phones appeared on its website ahead of an official announcement.

A Microsoft Band Sync app appeared in the Mac App Store and revealed what the product looks like.

The device has a horizontal display and will be able to sync its data to Microsoft's cloud-based health service which was announced in a blog post.

BDST: 1025 HRS, OCT 30, 2014