Features Screenless design minimizes distraction while offering comfort with a soft fabric band for all-day and all-night wear Does not require a subscription for use—enabling you to make improvements toward a healthier lifestyle Offers instant access to heart rate, health status, Body Battery™ energy monitoring, stress, women's health tracking and more through the Garmin Connect™ app Track 80+ activities, such as running, yoga and cycling, through the Garmin Connect™ app, or select your favorite activity to track via the on-device button See basic activity data in Garmin Connect™, including current heart rate, time and more; pair to your smartphone's GPS for accurate tracking during outdoor activities Automatically detects a variety of activities; as you confirm or edit these activities in Garmin Connect™, the band will adapt to more accurately classify future activities Customize your favorite activity for a quick start/stop without needing your phone Take on any fitness journey in the Garmin Connect™ app with advanced training features such as workout benefit which helps you understand how each workout affected your body Training readiness and training status help determine whether you should go hard or take it easy—all while tracking your performance progress Women's health tracking provides menstrual cycle tracking by using skin temperature as well as pregnancy tracking Advanced sleep tracking provides sleep score and personalized coaching—even keeping track of sleep stages and naps Includes recommendations for how much sleep you need, tips on how to improve, alignment on your inner sleep cycle by using circadian rhythm and more Set multiple alarms, selecting times/days—and even make it a smart wake alarm for a gentler, more natural wake-up that you can snooze or dismiss on the device Breathing variations feature uses Pulse Ox and helps you understand shifts in your breathing patterns while sleeping (Pulse Ox is required and not available in all countries) Note: This is not a medical device, and all device data presented is intended to be a close estimation of metrics tracked Easily switch between Garmin devices during the day with seamless Garmin Connect™ app syncing so you don't miss any information Up to 10 days of battery life means you don't need to constantly take off your device to charge Get the most out of your CIRQA smart band by adding accessories like the CIRQA Accessory Wristband (item #C16088) or CIRQA Accessory Upper Arm Band (item #C16090) Size S/M fits wrists with a circumference of 120–200 mm (4.72–7.87 in.); size L/XL fits wrists with a circumference of 145–240 mm (5.71–9.45 in.)