Dahua Pro Series vs Synology Network Video Recorder comparison

Dahua new NVR5 network video recorder delivers excellent
performance and high recording quality that is ideally suitable for IP
video surveillance applications. This professional NVR adopts powerful
processor, providing the capability of 4K resolution processing for
applications where image details are highly required. Additionally, the
NVR can be served as edge storage, central storage or backup storage
with an intuitive shortcut operation menu for remote management and
control.
Due to its easy-to-install design, the NVR is ideal for a wide range of
applications such as public safety, water conservancy, transportation, city
centers, education, and financial institutions.
The NVR is compatible with numerous third-party devices, which make
it the perfect solution for surveillance systems that work independently
of video management system (VMS). It features an open architecture
that supports for multi-user access and is compatible with ONVIF 2.4
protocol, enabling interoperability with 4K cameras.

Synology Network Video Recorder NVR1218 is an all-in-one, energy efficient private surveillance solution with HDMI output for PC-less management and live monitoring.