Washington - Microsoft has launched a device called "Microsoft Band" that will allow users to monitor their fitness and exercise regime, marking the world's largest software company's debut into the wearable technology market.
The wrist-worn device has sensors that monitor pulse rate, measure calorie burn and track sleep quality, Microsoft said in a blog post.
Microsoft said the device will be available in the US in limited quantities from Thursday for $199.
Apple unveiled a smart watch on 9 September that will combine health and fitness tracking with communications and will go on sale in early 2015 for $349.
Rival Samsung has launched a number of smart wearable devices that track both fitness and biometric data. The latest Galaxy Gear S is also able to operate without being connected to a smartphone.
Sony and LG are also active in the smart wearable arena with devices powered by Android Wear, Google's operating system designed specifically for wearable devices.
Deloitte's Global TMT Predictions says that 2014 will see a surge in wearable technology to 10 million units.
"Our report details many watched and often contended trends in the industry. While there has been much uncertainty around wearables, we predict that consumer interest will lead to a lucrative market with $3bn in sales in glasses, watches, and fitness bands," said Mark Casey TMT Industry Leader at Deloitte.
Microsoft also launched a health app called "Microsoft Health" that includes a cloud service for users to store and combine health and fitness data.
The Microsoft Health app will collect data from the fitness band and will work on iPhones and Android smartphones, as well as its own Windows Phone.