NAS · Head to head

Synology DS1823xs+ vs Ubiquiti UNAS 4

Full NAS comparison in 2026

Data from Amazon and official Synology and Ubiquiti sites.
2026 verdict
In this 2026 Synology DS1823xs+ vs Ubiquiti UNAS 4 comparison, Synology DS1823xs+ comes out ahead thanks to processor, storage, and network. Its clearest strengths are processor, storage, and network, and it still looks stronger on apps & virtualization. Ubiquiti UNAS 4 is the better fit only for buyers who prioritize price above everything else here. For the average buyer, Synology DS1823xs+ is the safer choice.
vs
FeatureSynology DS1823xs+Ubiquiti UNAS 4Winner
Price$2049.99$379.00Ubiquiti UNAS 4
ProcessorHardware Encryption EngineNoneSynology DS1823xs+
StorageHot Swappable, M.2 as Storage Pool, Expansion Unit SupportNoneSynology DS1823xs+
NetworkWake on LANNoneSynology DS1823xs+
Apps & VirtualizationDocker Containers, Virtual Machines, Plex Media Server, Surveillance App, AI Photo RecognitionNoneSynology DS1823xs+
Winner
Synology

Synology DS1823xs+

$2049.99
Buy on Amazon USA
  • + Processor: Hardware Encryption Engine
  • + Storage: Hot Swappable, M.2 as Storage Pool, Expansion Unit Support
  • + Network: Wake on LAN
  • - Price: $2049.99 vs $379.00

Frequently Asked Questions

Which is better overall: Synology DS1823xs+ or Ubiquiti UNAS 4?

Synology DS1823xs+ has the stronger overall profile in this comparison, especially for processor, storage, and network.

What is the biggest difference between Synology DS1823xs+ and Ubiquiti UNAS 4?

Price is one of the clearest differences: Synology DS1823xs+ lists $2049.99, while Ubiquiti UNAS 4 lists $379.00.

Which one looks better on price?

Synology DS1823xs+ is listed at $2049.99, while Ubiquiti UNAS 4 is listed at $379.00. Ubiquiti UNAS 4 (better spec).

Who should buy Synology DS1823xs+?

Choose Synology DS1823xs+ if your priority is processor and storage and that matters more than price.

Who should buy Ubiquiti UNAS 4?

Choose Ubiquiti UNAS 4 if your priority is price and that matters more than processor.

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