Technical Details Product Dimensions 17 x 9 x 11 cm; 200 Grams Batteries 1 Lithium Polymer batteries required. (included) Item model number GTS2-MINI-BLACK Connectivity technologies Bluetooth GPS ANT+ Special features Activity Tracker Other display features Wireless Color Black Whats in the box User Manual, Magnetic Charging Cable, Smart Watch Item Weight 200 g Brand Amazfit Model name GTS2-MINI-BLACK Style Casual Colour Black Screen size 1.55 Inches About this item ✅ 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 ✅ Amazon Alexa Built-In - Talk to Amazon Alexa on your Amazfit GTS 2 Mini. Ask questions, get translations, set alarms, and timers, create shopping lists, check the weather, control your smart home devices, and more ✅ 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 ✅ 14-day Battery Life A fully-optimized battery management system provides up to 14 days of battery life for the Amazfit GTS 2 mini smartwatch. Get rid of the anxiety caused by constant charging, and keep the energy flowing. The 220mAh battery is ready to power you through up to two weeks of activity.