My Garmin Forerunner is about the size of the larger Apple Watch. While it only lasts 3-6 hours with GPS/HRM/Bluetooth on, it goes for at least 3 weeks on stand

My Garmin Forerunner is about the size of the larger Apple Watch. While it only lasts 3-6 hours with GPS/HRM/Bluetooth on, it goes for at least 3 weeks on standby, which is what I want from my watch.