A:Answer Hey there, Lizard. Yes, you can have multiple Ace LTE watches on one account. Note that each device requires its own Ace Pass and its own email address — here’s how the setup would go:
1. Open the Fitbit Ace app. If you have an existing Ace Pass for another Fitbit Ace LTE device, tap on your Google Account icon in the top right > Tap Add a Fitbit Ace LTE
2. Select My child will wear the watch.
3. Select an existing Google Account or create a child account.
4. Tap I accept on the Terms of Service screen.
5. Tap Agree on the Privacy Notice screen.
6. On the plan selection screen, select a subscription plan > Tap Select Plan.
7. Select a payment method. If you haven’t added one yet, you’ll be asked to enter your card information.
8. Review the Order summary > Tap Buy.
Here’s a link with more information: https://support.google.com/fitbitacelte/answer/14949765?