"T-Connect" is a telematics service for smartphones which is provided by TOYOTA. Not only for TOYOTA vehicle owners, but "T-Connect" are available for any users with certain devices referred in the below description. Applicable devices. Samsung GALAXY S3, Samsung GALAXY S4, HTC One X S720e, Sony Xperia Z C6602. Tested OS. Android2. 3. X, 4. X~. Features.