|Operating system||Android 5.1 and up.
iOS 6.1 and up.
|Bluetooth||A device that supports Bluetooth 4.0 and up.|
|GPS||GPS (Not assisted GPS like in WiFi iPads)|
|Storage||At least 50 mb of free space.|
|Vessel||Works best on non steel boats up to 45 foot.
(Using more beacons might increase coverage and minimize false alarms.)