GBSCORE68/100Garmin's Bounce 2 Adds Two-Way Calling to Its Kids Smartwatch, With a 2-Day Battery That Doesn't Quite Cut ItDev · Apr 22Garmin Bounce 2 kids smartwatch with AMOLED, two-way calling, location tracking, swim-ready, 2-day battery. $299.99 plus $9.99/mo LTE. Amazon-stocked.