Meet the GalaRing G1: a smart ring with two core smart NFC chips by NXP. You can use this ring to share WiFi information, links to websites, and contact information with others. This NFC Ring can also be used to start apps with custom settings. The ring is waterproof (IP68) and can resist up to 10 meters of free fall impact. It is compatible with NFC phones such as Galaxy S4, Google Nexus 5, and Droid Razr. You can get one for up to $30.