Meet Gemio: a smart wearable device that lets you stay connected with friends and send them light signals. You can customize the band with millions of colors and light effects. Users can also customize the look of their band by switching out tiles. The MyGemio app is compatible with iOS and Android devices.
Gemio can be charged wirelessly. It has sensors to respond to your environment. With Bluetooth and proximity sensing, Gemio detects when your friends are around. This smart gadget is on Kickstarter right now.