The Weber iGrill 3 is your answer to perfectly cooked food, every time, and mounts directly onto your Genesis II or Spirit II gas barbecue. This app-connected thermometer allows you to monitor the doneness of up to four cuts of meat, from beginning to end, and notifies you on your smart device once food has reached the perfect temperature to serve. Apple: iOS 9 or higher required: • iPhone 4S or later • iPad 3rd generation or later • iPad mini • iPod touch 6th generation or later Android: Most Android phones running Android 6.0 or higher and Bluetooth 4.0 or higher. Please note: Some smart devices are not compatible with the Weber iGrill App, including: iPhone 4, iPad 1st or 2nd generation, Huawei phones.