SUPER LIGHT AND THIN: Amazfit GTS 2 Mini featuring curved 2.5D glass to enhance your most fashionable outfits, the borderless design of this smart watch has a light weight of 19.5g and a thickness of 8.95mm (without the sensor base), as well as a skin-friendly silicone strap. HEART RATE AND SLEEP QUALITY MONITORING: The GTS 2 Mini supports industry-leading in-depth tracking of heart health, with warnings for abnormally elevated heart rate provided. This smartwatch can also assess your sleep breathing quality through the light, deep, and REM sleep stages during the night, and can identify daytime naps to record more complete sleep information. SpO2 AND STRESS LEVEL MEASUREMENT: After engaging in intense physical or mental activity, hold your arm still and test your SpO2 level to get a better understanding of your condition. With the GTS 2 mini, you can also check to see where your personal stress level lies - from relaxed, normal, medium, or high - and get some suggestions on how to reduce it. 70+ SPORTS MODES: With over 70 built-in sports modes and 5 ATM water-resistance, the GTS 2 mini covers most sports enthusiasts. The watch can also control the music on your phone, provide notifications about exercise stages, conditions and heart rate zones10, and generate a sports data report in the App after finishing your workout. 14-DAY BATTERY LIFE: A fully-optimized battery management system provides up to 14 days of battery life for the Amazfit GTS 2 mini. Get rid of the anxiety brought on by constant charging, and keep the energy flowing. The 220mAh battery is ready to power you through up to two weeks of activity.