Meet the Amazfit Activity + Sleep Tracker: another smart wearable device that tracks your steps, distance traveled, running, and calories burned. It tracks how long and well you sleep and has a silent vibrating alarm. The center module is made of water-resistant zirconium oxide ceramic. You can use the device around your neck or wrist. You get various wristband and necklace accessories to choose from. Costs under $100 at this time.