What's the best Android app for transferring all my stuff to a new Samsung phone?

Samsung Smart Switch Mobile is Samsung's official data migration tool designed to simplify setting up a new Galaxy device. For users upgrading within the Samsung ecosystem or moving from another Android brand, it provides a straightforward, cable-free method to transfer personal data. The app allows users to select specific content types—like call logs, messages, photos, videos, and documents—for transfer, rather than forcing a full, bloated system clone. A key strength is its broad compatibility; it often works with non-Samsung Android phones, though results can vary by manufacturer and age of the device. Reviews indicate the process is generally reliable for standard media and personal files, with many users praising its simplicity. However, a consistent limitation noted in user feedback involves app data and game progress. Some applications, particularly games with proprietary cloud saves or specific DRM, may not transfer their saved states, leading to lost progress. The transfer speed is also dependent on the Wi-Fi Direct connection and the total data volume, which can mean a lengthy wait for users with extensive photo libraries. For a seamless transition of core personal data to a new Samsung phone, Smart Switch Mobile is a highly effective first-party solution, though users should manually back up any critical in-app data as a precaution.