The Nabu X Smartband is a fitness tracker, a sleep monitor and a social wearable in one. It features customisable LEDs and vibrations to notify you of incoming alerts from your phone. Outfittted with Razer's proprietary Pulse technology, the Nabu X bands "talk" to each other in a specified proximity so you can shake hands to exchange info, share and compare fitness activity and play multiplayer games. Stay active with the Nabu X and track your progress with a companion fitness app of your choice. It features up to a 7 day battery life and 30 days in standby while being water resistant up to 30 minutes in 1 metre of water. Backed by a 1 year Razer warranty.