• SIZING BEFORE YOU BUY - Revo sizes differ from standard ring sizes. Please check the size chart carefully before purchasing! If there is a sizing issue with your order, do not worry, please feel free to contact us and we will fix your issue asap!
• HIGHLY ACCURATE SLEEP MONITOR: Smart Ring doesn't just measure how long you sleep, it also accurately measures the quality of your sleep. It also tells you how long you have slept, deep sleep, light sleep and how long you have been awake during the night. You can easily view the data from the Smart Ring health tracker via the mobile app.
• ACTIVITY FITNESS TRACKER: This fitness tracker ring records your daily exercise data, automatically monitors your heart rate and heart rate variability on a daily basis, or you can monitor it manually through the app "Smart Health". Oximetry and stress tests can be measured manually via the app.
• IP68 WATERPROOF FITNESS TRACKER: This smart ring is IP68 waterproof, ensuring that you can wear it in the shower, workout in the rain, or even swim with confidence as it is waterproof up to 164 feet.
• NO SUBSCRIPTION FEES: This Smart Ring Health Tracker data can be easily viewed through the mobile app without any subscription fees. Free for life, the device supports Android 6.0 and iOS 11.0 and above.
• AMAZING SERVICE: If you have any questions, please feel free contact us, we will reply you within 24 hours. We offer lifetime warranty, if you are not satisfied with the product quality, you can contact us for replacement or refund.