I just bought this and the app doesn’t work on either my iPhone or iPad. DON'T BUY unless you read the reviews on their app. Amazon gives me a month before I have to return it. I’m giving them 2 weeks to fix before I send back. I’ll let you know if they resolve this issue. Buyer BEWARE!
As promised, the next day they fixed their app! Loving it so far. Had an Apple Watch and the battery last only a few years. Switch to the Versa 2 for half the price of an Apple Watch and as I can tell right now, features are similar. However, I never had Apple respond with trouble shot and a fix as quickly as the Fitbit Team!