Microsoft Band was a smart band with smartwatch and activity tracker/fitness tracker features, created and developed by Microsoft. It was announced on October 29, 2014. The Microsoft Band incorporated fitness tracking and health-oriented capabilities and integrated with Windows Phone, iOS, and Android smartphones through a Bluetooth connection. On October 3, 2016, Microsoft stopped sales and development of the line of devices. On May 31, 2019, the Band's companion app will stop working and Microsoft will offer a refund for customers who were still active platform users.