OLATHE, Kan.--(BUSINESS WIRE)--Garmin International Inc., a unit of Garmin Ltd. (NASDAQ: GRMN), today announced the vívofit 4, a daily activity tracker 1 with an incredible 1+ year battery life – no ...

In a lot of ways, the vívofit 4 is a worthy successor over its predecessor. It's more comfortable, has a new color display, and plenty of useful extras. But the lack of heart rate monitor connectivity ...