Fitbit Sense Advanced Smartwatch

Features- EDA Scan app detects electrodermal activity which may indicate your body's response to stress and a built-in skin temperature sensor logs yours each night so you can see when it varies.Band Size : Small : Fits wrist 140mm - 180mm in circumference. Large : Fits wrist 180mm - 220mm in circumference Assess your heart for atrial fibrillation –a heart rhythm irregularity- and easily share results with your doctor (The Fitbit ECG app is only available in select countries. Not intended for use by people under 22 years old.Operating temperature: 14° to 113°F An on-wrist skin temperature sensor tracks yours each night so you can see how it varies. You can also see your nightly blood oxygen levels at a glance with our collection of clock faces.Maximum operating altitude: 28,000ft High & low heart rate notifications alert you if yours seems above or below your average Battery lasts 6 plus days plus, fast charging gives you a full day’s charge in just 12 minutes (Varies with use and other factors; up to 12 hours with continuous GPS) Use built-in GPS during runs, hikes, rides and more to see pace & distance without your phone and use the built-in mic and speaker to take Bluetooth calls hands-free when your phone is nearby (Requires more frequent charging) Use Google Assistant or Amazon Alexa Built-in to get quick news, set bedtime reminders and alarms, control your smart home devices and more just by speaking to your watch   Technical Details Brand ‎Fitbit Manufacturer ‎Fitbit Inc Model ‎FB512BKBK Model Name ‎Sense Model Year ‎2020 Product Dimensions ‎4.05 x 4.05 x 1.24 cm; 30 Grams Batteries ‎1 Lithium Polymer batteries required. (included) Item model number ‎FB512BKBK Memory Storage Capacity ‎6400 MB Operating System ‎Manual Hardware Platform ‎FitBit Compatible Devices ‎Mobile Phone Special Features ‎Heart Rate Monitor,Stress Tracking,Blood Pressure Monitor,GPS,Alarm Clock,Body Temparature Monitor Mounting Hardware ‎Device and cable Number of items ‎1 Display Technology ‎AMOLED Standing screen display size ‎1.58 Inches Wattage ‎180 Watts Battery Average Life ‎1 Hours Batteries Included ‎Yes Batteries Required ‎Yes Battery cell composition ‎Lithium Ion Wireless Type ‎Bluetooth Connector Type ‎Wireless Device interface - primary ‎Microphone Material ‎Synthetic Does it contain liquid? ‎No Includes Rechargeable Battery ‎Yes Manufacturer ‎Fitbit Inc Country of Origin ‎China Item Weight ‎30 g