Meet Holla: an interesting wearable device you can wear around your wrist to handle calls and stream music. It has a full 2.2″ touch display and an integrated earpiece for taking calls. Holla relies on NFC, Bluetooth and WiFi to get the job done. The earpiece charges using POGO pins. Designer Mithun Darji is behind this idea. It’s a little too big for my taste, but the idea is intriguing.