This cup holder tablet mount is designed to hold tablets and large phones using a vehicle’s existing cup holder as a stable base. The mount features an innovative design that does not occupy the cup holder itself, leaving space for a beverage while still providing a secure device mount. The cup holder portion has a diameter of about 10 cm and is intended to fit most cups, thermos bottles, and beverage cups, including some with handles. The upgraded expandable base adjusts from approximately 2.83 to 4.09 inches (72–104 mm) to fit most round cup holders, and it uses three non-slip silicone extensions to form a triangular stable structure. The mount has a height of about 15 inches and a foldable arm, with a 360-degree rotation for switching between portrait and landscape orientation. The upper arm is 360-degree adjustable, and the bottom arm is 180-degree adjustable with 360-degree rotation, providing flexible positioning for navigation or entertainment. The device cradle is designed to hold tablets and phones from 3 to 13 inches, including many iPad Pro, Air, and Mini models, Samsung Galaxy Tab models, Fire tablets, and various smartphones. The mount is made from durable materials selected for stability on rough roads. This product is suitable for cars, SUVs, trucks, and boats with compatible cup holders, and it is a practical accessory for passengers or drivers who want a larger screen for maps, videos, or calls.