Meet the Sync smartband: a wearable device for families. Like many other wearable devices, this is capable of keeping track of your activities. It can track your sleep too. More importantly, you can use it to locate your loved ones if they get lost. It also stores medical information in case of an emergency. The ActvContent Sync has a portal you can use to manage your information.
The developers are planning to release this wearable for kids and adults. The Digital Zone feature lets you set a safe zone and get alerted if your kids go outside of it. You can monitor up to 8 devices that way. The device is water resistant and made of hypoallergenic TPU rubber. Its battery life lasts you 3 months. You also get a range of 150ft outdoors. The device is compatible with iOS and Android devices.