5X or 5-X may refer to: Codes 5X, IATA code for UPS Airlines 5X, the production code for the 1982 Doctor Who serial The Visitation Electronics Huawei Honor 5X, a mobile telephone Nexus 5X, a mobile telephone Mathematics 5x, or five times in multiplication Vehicles Aircraft Dassault Falcon 5X, a business jet Light Miniature Aircraft LM-5X, a full-sized replica of the Piper PA-18 Super Cub Cars Chery Tiggo 5X, a subcompact SUV built since 2017 See also X5 (disambiguation)