Question: is the vivosmart 3 waterproof?
Answer: It's waterproof up to 50 meters — it can be worn in the shower or pool, though it won't track swimming — and Garmin is claiming the battery will last five days on a charge. Like last year's Vivosmart HR, it has optical heart rate sensors built in. ... On the downside: the Vivosmart 3 doesn't have built-in GPS.