Stay Fit and Sleep Well with Chronus Smartwatch- Monitor heart rate, blood oxygen, and stress in real time.- Choose from 100 sport modes to track steps, calories, and distance.- IP68 waterproofing for swimming.- Enhance your sleep with Chronus's sleep tracker.- Track REM, light, and deep sleep.- "VeryFit" app offers sleep insights and tips.- Improve your sleep habits and wake up refreshed.Alexa Built-in smart watch by Chronus - control smart devices, set reminders, check weather, and more from your wrist. Download 'VeryFit' app, connect via Bluetooth, and enjoy Alexa on your watch!Stay connected on the go with Chronus smartwatch! Manage calls, messages, social media, email, and texts in one place. Make/receive calls, get notifications on your wrist - never miss important messages, simplify your daily routine.Long-lasting Battery Life- Up to 30 days in standby, 20 days in power saving mode.7-10 days of daily use.Quick 2.5-hour full charge.Enjoy the benefits of your smartwatch without frequent charging!44mm HD Screen & Customizable Watch Face Experience crystal-clear visuals with Chronus's large 44mm high-definition screen. Choose from over 100 stunning cloud-based watch faces or customize your own, offering endless options to match your style.Excellent after-sales serviceWe focus on customer service, so we have high-quality after-sales service, if you have any questions about our products or purchases, please feel free to contact us, we will reply to your message within 24 hours and help you solve the problem.