【Track Your Baby’s Sleep】The Baby Sleep Monitor tracks your baby's heart rate, movement, and oxygen levels, helping you better know their sleep 【Stay Connected for Peace of Mind】With the ViHealth app, you can monitor your baby’s heart rate, oxygen levels, and movement anytime, providing peace of mind about their well-being 【Soft Sock in Three Sizes】The soft, uniquely designed foot sock is gentle, non-irritating, and easy to put on. Available in S/M/L sizes, it fits babies weighing 0–8.6 lbs, 8.6–18.7 lbs, and 18.7–30.6 lbs 【Review and Share Sleep Data】Access detailed sleep data in the ViHealth app (compatible with iOS and Android) and can easily share records whenever needed 【Built-In Memory】The monitor functions independently and stores up to four sessions of data, automatically syncing to your phone when connected to the app (with unlimited storage). No need to worry about data loss when your phone isn’t paired