* I keep all serial numbers on file * I reuse packaging to reduce waste * I watermark ALL my products The Fitbit Inspire 2 Activity Tracker in Lunar White is the perfect device to help you achieve your fitness goals. With a battery life of up to 10 days, this water-resistant tracker features a calorie monitor, fat monitor, heart rate monitor, and sleep tracker. It is compatible with both iOS and Android operating systems and is designed to fit a variety of sports and activities including gym and training, walking, cycling, swimming, yoga, pilates, running, and jogging. The exercise log feature allows you to keep track of your workouts and monitor your progress over time.