Fitbit Sense 2 Advanced Health Smartwatch Lunar White/Platinum

This smartwatch features advanced health tracking capabilities, including SpO2 (blood oxygen) monitoring, irregular heart rhythm notifications, and an ECG app to assess heart rhythm. It provides detailed heart rate data, including resting, high, and low rates, along with stress notifications and a Stress Management Score. It tracks sleep quality and stages, offering a Sleep Score to help improve your rest. The skin temperature sensor adds more wellness insights, while Active Zone Minutes track your workout intensity. Built-in GPS supports outdoor activities, and it tracks steps, distance, and calories. Swimproof up to 50 meters and Alexa integration for voice control make it even more convenient. With a battery life of 6+ days, it fits wrists 5.5" to 7.1" (small) or 7.1" to 8.7" (large) in circumference.