Microsoft invested in Band Smartwatch a cutting-edge technology like built-in GPS and 24-hour heart rate monitoring. The packed hardware is Freescale Kinetis K24 processor — a low-power 32-bit chip based on ARM’s Cortex-M7 architecture. With clock speeds ranging from 50 to 180MHz, the K series Kinetis is built for performance. The Band also sports 2MB of RAM, and 64MB of internal storage. It’s not much, but it’s enough to drive the 320 x 106 pixel display, GPS, integrated sensors, and Atheros Bluetooth module.
On a Windows Phone 8.1, you can use Cortana to take notes or set reminders with your voice. The Band is designed to connect with iOS and Android smartphones.