A:AnswerHello Jeff, this charger is not compatible with the Gear S3 Frontier. The Gear S3 Frontier uses a Wireless Charging Dock as the charging method. ^Elizabeth
A:AnswerAs long as you choose the right type of port, it will work. The newer cords have a C Port that connects to the phone. The older androids used the micro mini ports. Bestbuy sells both of these.
A:AnswerYes! I bought one for my Samsung Galaxy Note S or whatever. I bought the charger box that came with the C-port, since that is the oval shaped connector.
