Review on 👶 Babytone Baby Sleep Monitor S1: Track Heart Rate, Oxygen Level, and Movement – Wearable Foot Monitor with Bluetooth and Free APP for 0-36 Months Infant's Sleep by Jennifer Brogdon

Two different straps must be attached to the child's foot and ankle to use. You connect them with a cable attached to the sensor. The sensor is held on the foot, the monitor on the ankle. Everything is very light and the velcro closure feels secure. You will get an extra strap for the sensor. Everything comes in a very small cardboard box with a magnetic closure. Everything comes back pretty easily. The monitor screen itself shows heart rate, O2 and battery level. The device stores four 10-hour sessions, otherwise your phone can store many more. You can add this data to Apple Health, although it's weird because it's not specifically your data. I haven't gone too deep here, but I have a feeling the data might get a bit muddled if you're also tracking your own O2 levels. Charges with included USB-USB mini cable (no plug). Changes after 2-3 hours, use within 16 hours. It was about our experience. You download the app to view your heart rate and O2 readings. The phone beeps very loudly when you turn off the device. So if something happens to the device, you will be informed about it immediately.