The GET Smart SOS is the innovative settable SOS alarm and a wireless engine hour meter. This device features an internal accelerometer which detects when the bike falls and send a SOS notification with the GPS location to your selected contacts, thanks to a free App available for both iOS and Android. No subscription needed and free up to 99 contacts. Smart SOS wireless hour meter records customized service intervals in order to keep the bike at the highest level of efficiency and performance; and it also tracks total and partial counts (up to 1000 hours, with resettable partial). Equipped with a CR2032 replaceable battery, Smart SOS can be installed without the use cables or sensors and is water and dirt proof. Currently not compatible with the following smartphones: Huawei Mate 10 lite Huawei P9 Lite Huawei P8 Huawei P20 Lite