Fitbit Inspire 2 Fitness Tracker Black L/S size / Heart Rate Monitor Fitbit This item was won in a giveaway. I am selling it because I don't use it. It is new, unused, and unopened. It arrived at my home on June 18, 2024. Retail price: 8,000 yen Notification function: Displays and vibrates notifications from smartphones for incoming calls, text messages, calendars, and various applications such as Facebook/LINE/Twitter. Quick replies to messages are also available (Android only). Sleep stage function/Displays sleep score: Automatically measures the time spent in each sleep stage (awake, light sleep, deep sleep, REM sleep) and wake-up times. You can understand the quality and trends of your sleep with the sleep score. Premium provides a detailed breakdown, which can help you take action to improve your sleep. 24-hour continuous heart rate measurement/Active heart rate zone (minutes): Measures the exercise load based on your resting heart rate and notifies you with vibrations when the intensity of your exercise increases. Maximizes the effectiveness of your workouts. Waterproof function: Water-resistant to a depth of 50m [Includes a free trial of Fitbit Premium] The Inspire 2 tracker offers a 1-year free trial of Fitbit Premium. You can utilize step-by-step fitness & nutrition programs, customized analysis, motivational features, sleep tools, and more. Included items: Fitbit Inspire 2 Classic Belt (S size and L size) Charging cable [Up to 10 days of continuous use] You can use heart rate measurement and other functions continuously for up to 10 days. It doesn't require frequent charging and keeps you inspired day and night. *Battery life varies depending on usage and other factors.