Yes, you can use disneyplus.com/begin on mobile devices. Whether you have an Android or iOS device, simply open your mobile browser and go to disneyplus.com/begin to start the Disney+ activation process. This URL will guide you to enter a unique code provided by your TV or streaming device to link your Disney+ account. The mobile site is optimized for easy navigation and setup, allowing you to enjoy Disney+ on your mobile device after activation. Ensure your Disney+ subscription is active, and you'll be ready to stream your favorite content.