Meet the IBee bracelet: a stylish connected wearable device with modules, such as GPS, notification, body temperature monitory, and activity tracker to keep you connected. IBee requires battery and notification modules to start but you can use GPS, Moving, Baby Maker, Storage, and Solar Shield modules to enhance its capabilities.
IBee can monitor your basal body temperature, alert you of sunlight exposure, and more. It has a 150mAh battery module. You can find this project on Kickstarter.