Developers of ‘the world’s first smart earring’ are hoping to raise over $30,000 on the Kickstarter crowd-funding website as part of a vision to “take fitness monitoring to the next level”. With most fitness and activity tracking devices typically worn on the wrist, developers of the Ear-o-Smart earring believe the wearable electronics market is missing a trick. The Ear-o-Smart earring from Canadian start-up BioSensive Technologies connects to a smartphone with Bluetooth 4.0 wireless technology and monitors heart rate, calories, and activity level.