50% increase in battery life, IP675 rating for water and dust resistance, luetooth Low Energy (BLE) and UWB capabilities(AR) 50% increase in battery life, IP675 rated for water and dust resistance, low energy (BLE), and UWB (AR) capabilities Enjoy Galaxy SmartTag2 for longer with new power-saving mode Galaxy SmartTag2's battery lasts up to 700 days, more than twice as long as previous Galaxy SmartTag models. Even in normal mode, the battery life extends up to 500 days, which is a 50% increase on previous models.