Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Sage Grey/Silver, One Size (S & L Bands Included) - FB512srsg

• UPC   811138036942
• Optimize your workouts with a Daily Readiness Score that reveals if you’re ready to exercise or should focus on recover (requires Fitbit Premium membership. Premium content recommendations are not available in all locales and may be in English only) 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 With a compatible ECG app right on your wrist, assess your heart for atrial fibrillation--a heart rhythm irregularity--and share the results with your doctor (Only available in select countries. Not intended for use by people under 22 years old) An on-wrist skin temperature sensor tracks yours each night so you can see how it varies Includes a 6-month Premium membership complete with personalized insights, advanced analytics, guided programs and more (New & returning Premium users only. Must activate trial within 60-days of device activation. Content and features may change) High & low heart rate notifications alert you if yours seems above or below your average Battery lasts 6+ 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 Use your voice with Amazon Alexa Built-in to check the weather, set reminders, control smart home appliances and more from your watch (Voice assistant availability and features may vary) Small fits wrist 5.5" - 7.1" in circumference and Large fits wrist 7.1" - 8.7" in circumference