Meet the RINGLY Aries Activity Tracker : a smart bracelet that records your steps taken and calories burned and syncs the data to your iOS or Android device. You can also configure it to alert you when you have a new message with vibration patterns and light. You can limit notifications to your favorite messaging and productivity apps.
RINGLY connects to your gadgets via Bluetooth. The jewelry charges the gadget in 4 hours. Costs under $200 at this time.