FEATURES & TECHNOLOGY: Identify signs of stress and manage it in the moment with all-day body-response tracking [using a continuous EDA sensor] Log reflections during stressful moments of your day to see how your emotions trend over time Get a deeper understanding of your sleep and how to improve it with your personalized Sleep Profile Assess your heart rhythm for atrial fibrillation with the compatible ECG app and easily share results with your doctor Stay on top of your health with SpO2, heart rate variability & more insights on the Health Metrics dashboard Get deeper insights & guidance, exclusive workouts, mindfulness sessions and more with included 6-month Premium membership See how prepared your body is to handle stress-and plan your day accordingly-with your daily Stress Management Score Perform an EDA Scan to see how your body responds during a mindfulness session Check in on your stress-management efforts with daily and weekly summaries See how you slept last night-and what contributed to that sleep-with Sleep Score (Select markets only) Check for signs of an irregular heart rhythm that may be atrial fibrillation (AFib) with irregular heart rhythm notifications Get notified if your heart rate is outside your set baseline with high & low heart rate notifications Track calorie burn, optimize workouts and see your resting heart rate with 24/7 heart rate tracking Know whether you should prioritize rest or exercise each day with Daily Readiness Score Make every minute count during workouts with Active Zone Minutes' target heart rate zone notifications See your real-time pace & distance without your phone using built-in GPS during outdoor activity Enjoy smart features like on-wrist Bluetooth(R) calls (coming soon), texts, phone notifications, Fitbit Pay and Amazon Alexa built-in Flaunt your style in a sleek, thin & fashionable design that's optimized for comfort & all-day wear DESIGN: Sense 2 is designed to feel like a natural and comfortable extension of your wrist. It's sleek and slim with all-new raised band attachments that make it more comfortable for all-day wear. And its soft, nature-inspired color palette aligns with high-end, fashion-forward color trends Sense 2 is built to feel natural on your wrist and complement styles both casual and elegant. It's sleek and slim with all-new raised band attachments that make it more comfortable for all-day wear BATTERY: With a long battery life, Sense 2 tracks all your health & fitness stats for 6+ days without having to stop for a charge. Varies with use and other factors; up to 12 hours with continuous GPS Less charging means more doing. And with Sense 2, you can get a day's worth of battery in just 12 minutes FITBIT PREMIUM: Go Premium and get personalized insights that help you live your healthiest. Know your body better with Daily Readiness Score and Stress Management Score breakdowns, and see long-term trends in your Sleep Profile and Health Metrics dashboard. Then use those insights and Premium tools to enhance your well-being