Samsung Flow is the clear winner because Samsung SideSync was officially discontinued. Samsung replaced the aging SideSync application with Flow to serve as its primary device-continuity and screen-mirroring tool. Feature Comparison Samsung SideSync (Legacy) Samsung Flow (Current) Status Discontinued in 2019 Actively Maintained Mirroring Tech Dedicated SideSync engine Integrated Smart View Connection Types Wi-Fi and USB Wi-Fi, Bluetooth, and USB Device Swapping Single device pairing Multiple device registration Biometric Unlock Not supported PC Unlock via Phone Biometrics Why Samsung Flow Replaced SideSync
Better Security: Samsung Flow introduces secure biometric authentication, allowing you to unlock a Windows computer or tablet using your phone’s fingerprint scanner or PIN.
Modern Integration: While SideSync relied on older standalone infrastructure, Samsung Flow integrates directly with standard features like Smart View for high-resolution screen mirroring.
Multi-Device Support: Flow permits users to register multiple devices to a single dashboard, allowing quick switching between different phones or tablets. Modern Alternatives
If you encounter connection stability issues with modern versions of Flow, two notable alternatives dominate the ecosystem: