NAS · Head to head

Synology DS423 vs Ubiquiti UNAS 4

Full NAS comparison in 2026

Data from Amazon and official Synology and Ubiquiti sites.
2026 verdict
Synology DS423 is the more complete option versus Ubiquiti UNAS 4 in 2026, helped most by processor, storage, and network. It separates itself most clearly on processor, storage, and network, while still looking better on apps & virtualization. Ubiquiti UNAS 4 is the better fit only for buyers who prioritize price above everything else here. Overall, Synology DS423 makes more sense for most people.
vs
FeatureSynology DS423Ubiquiti UNAS 4Winner
Price$399.99$379.00Ubiquiti UNAS 4
ProcessorHardware Encryption EngineNoneSynology DS423
StorageHot SwappableNoneSynology DS423
NetworkWake on LANNoneSynology DS423
Apps & VirtualizationPlex Media Server, Surveillance App, AI Photo RecognitionNoneSynology DS423

Frequently Asked Questions

Which is better overall: Synology DS423 or Ubiquiti UNAS 4?

Synology DS423 has the stronger overall profile in this comparison, especially for processor, storage, and network.

What is the biggest difference between Synology DS423 and Ubiquiti UNAS 4?

Price is one of the clearest differences: Synology DS423 lists $399.99, while Ubiquiti UNAS 4 lists $379.00.

Which one looks better on price?

Synology DS423 is listed at $399.99, while Ubiquiti UNAS 4 is listed at $379.00. Ubiquiti UNAS 4 (better spec).

Who should buy Synology DS423?

Choose Synology DS423 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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