New in box Fitbit Charger 6 Color: Porcelain Boost your routine with our #1 fitness tracker. Now with our most accurate heart rate, plus Google essentials like Maps, Wallet and YouTube Music controls.³ ⁶ ¹¹ Requires more frequent charging. Device temperature sensor (skin temperature variation available in the Fitbit app). Only available in the Fitbit app and only displays variation. Not available in all markets. Not intended for medical purposes. Significant changes in ambient temperature may negatively impact skin temperature tracking Ambient light sensor NFC Multipurpose electrical sensors compatible with ECG app & EDA SS Battery & Power Battery life of up to 7 days. Use of the always-on display and SpO2 features will require more frequent charging. We recommend charging your tracker every few days to ensure you are always tracking. Average battery life is approximate and is based on testing conducted in California in mid 2023 on pre-production hardware and software, using default settings with a median Fitbit user battery usage profile across a mix of talk, data, standby, and use of other features. Battery life depends on features enabled, usage, environment and many other factors. Use of certain features will decrease battery life. Actual battery life may be lower. Battery type: Lithium-polymer Charge time (0-100%): Two hours Radio transceiver: Bluetooth