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NAS · Head to head

Synology DS725+ vs Ubiquiti UNAS Pro 4

Full NAS comparison in 2026

Updated October 2026
Data from Amazon and official Synology and Ubiquiti sites.
2026 verdict
Synology DS725+ wins the 2026 matchup against Ubiquiti UNAS Pro 4, mainly on storage and apps & virtualization.
Synology DS725+
Winner
Synology DS725+
$551.49$829.9934% OFF
Buy on Amazon USA
Its clearest strengths are storage and apps & virtualization, and it still looks stronger on its broader overall balance. The only strong reason to choose Ubiquiti UNAS Pro 4 is if rating and memory capacity are more important to you than the overall verdict. In practical terms, Synology DS725+ is the easier product to recommend.
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FeatureSynology DS725+Ubiquiti UNAS Pro 4Winner
Rating4.14.3Ubiquiti UNAS Pro 4
Memory Capacity4 GB8 GBUbiquiti UNAS Pro 4
StorageHot Swappable, M.2 as Storage Pool, Expansion Unit SupportHot SwappableSynology DS725+
Apps & VirtualizationDocker Containers, Virtual Machines, Plex Media Server, Surveillance App, AI Photo RecognitionNoneSynology DS725+
ProcessorHardware Encryption EngineNoneTie
NetworkWake on LANNoneTie
Winner
Synology

Synology DS725+

34% OFF
Prime exclusive deal
$551.49
$829.99
Buy on Amazon USA
  • + Storage: Hot Swappable, M.2 as Storage Pool, Expansion Unit Support
  • + Apps & Virtualization: Docker Containers, Virtual Machines, Plex Media Server, Surveillance App, AI Photo Recognition
  • - Rating: 4.1 vs 4.3
  • - Memory Capacity: 4 GB vs 8 GB
Ubiquiti

Ubiquiti UNAS Pro 4

Prime exclusive deal
Not available on Amazon USA
See on Amazon USA
  • + Rating: 4.3
  • + Memory Capacity: 8 GB
  • - Storage: Hot Swappable vs Hot Swappable, M.2 as Storage Pool, Expansion Unit Support
  • - Apps & Virtualization: None vs Docker Containers, Virtual Machines, Plex Media Server, Surveillance App, AI Photo Recognition

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Synology DS725+
  • Ubiquiti UNAS Pro 4

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Frequently Asked Questions

Which is better overall: Synology DS725+ or Ubiquiti UNAS Pro 4?

Synology DS725+ has the stronger overall profile in this comparison, especially for storage and apps & virtualization.

What is the biggest difference between Synology DS725+ and Ubiquiti UNAS Pro 4?

Rating is one of the clearest differences: Synology DS725+ lists 4.1, while Ubiquiti UNAS Pro 4 lists 4.3.

Who should buy Synology DS725+?

Choose Synology DS725+ if your priority is storage and apps & virtualization and that matters more than rating.

Who should buy Ubiquiti UNAS Pro 4?

Choose Ubiquiti UNAS Pro 4 if your priority is rating and memory capacity and that matters more than storage.

Full comparison table

Compare all 35 NAS side by side

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  • 35 NAS
  • 61 specs compared
  • 58 filters
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