Heart rate on gym equipmentConnect Charge 6 to your favorite compatible exercise machine and see your real-time heart rate directly on the display.Daily Readiness ScoreFind out if your body's ready to work out or needs time to recover. Available with Premium.40+ Exercise ModesTrack your favorite exercises like runs, bike rides, weights, yoga & more and get live stats on your wrist.Heart rate trackingThe heart of it all-heart rate powers important data like calorie burn, sleep stages, resting heart rate & more.Active Zone MinutesTracks your time in heart rate zones so you get credit when you work harder. Workouts in cardio or peak zones earn double minutes.Built-In GPSSee pace & distance on your wrist-no phone needed.Cardio Fitness ScoreEstimates your fitness level using your VO2 Max (how well your body uses oxygen during exercise).SmartTrack Automatic Exercise Recognition (in app only)Automatically recognizes your exercise and records it in the Fitbit app post-workout.Water resistantYou're covered to 50m, so dance in the rain if that's how you want to work out today.Workouts on your phoneSweat to high-energy workouts in the Fitbit app, from Fitbit trainers & popular partner brands. Most workouts require a Premium membership.All-Day Activity TrackingJust get moving, we'll take care of the rest. Charge 6 tracks your steps, distance, calories burned & Active Zone Minutes 24/7.Workout Intensity Map (in app only)After outdoor exercise with GPS, check your workout intensity map in the Fitbit app to see your pace and heart rate zones throughout your route and learn where you put in the most effort.Timer & StopwatchGet instant access to tools that make our life easier-like a timer for interval training and a stopwatch for tracking sets at the gym.ECG app for heart rhythm assessmentCompatible ECG app lets you assess your heart rhythm for atrial fibrillation-a heart rhythm irregularity-and share results with your healthcare professional.High & Low Heart Rate NotificationsIf resting heart rate is above or below your usual range, you get notified in the Fitbit app.SpO2 (blood oxygen) trackingTracking SpO2 helps tell you the amount of oxygen in your blood, which can help you understand potential changes in your wellness. Not available in all markets.Skin temperature variationIdentifies changes in skin temperature, which can be related to activity, illness, menstrual cycle & more.Resting heart rateAn important indicator of your heart health & fitness. In general, active people have a lower RHR.Breathing RateSmall variations in your breathing rate could be a sign of changes in your well-being.Irregular heart rhythm notificationsCheck for signs of an irregular heart rhythm that may be atrial fibrillation (AFib), so you can share this information with your healthcare provider.Blood glucose tracking (in app only)Log your glucose levels and see how activity, sleep, stress & nutrition impact your trends in the Fitbit app.Menstrual health trackingLog periods, record symptoms, find patterns in your cycle & estimate your ovulation window.Health & Wellness RemindersActivate optional personalized reminders for beneficial tasks that can be tough to remember, like staying hydrated, sticking to a sleep schedule, getting in activity and more