Looking for an honest Synology DiskStation DS223j 2-Bay NAS vs Synology DS1522+ 5-Bay DiskStation comparison in 2026? We scored both nas storage on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. Both products score nearly identically (53/100 vs 55/100) — this is a genuine toss-up that hinges on which specs matter most for your use case. The widest gap is in battery life, where the Synology DS1522+ 5-Bay DiskStation pulls noticeably ahead. Both products sit in the same price band (around $399), so this comparison comes down to spec preference rather than budget.
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Synology DiskStation DS223j 2-Bay NAS and Synology DS1522+ 5-Bay DiskStation are closely matched nas storage devices with nearly identical overall scores (53 vs 55). The best choice depends on which specific features matter most to you.

Synology
$399
Scores are relative within the nas storagecategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✗ Cons
✓ Pros
| Spec | Synology DiskStation DS223j 2-Bay NAS | Synology DS1522+ 5-Bay DiskStation |
|---|---|---|
| Price | 399$ | 399$ |
| RAM | 2GB | 8GB✓ |
| OS | DiskStation Manager (DSM) | DiskStation Manager (DSM) |
| Weight | 1100g | 1100g |
| Dimensions | 165 x 108 x 232 mm | 165 x 108 x 232 mm |
| Colors | Black | Black |
Buy Synology DiskStation DS223j 2-Bay NAS if…
The Synology DiskStation DS223j 2-Bay NAS is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Buy Synology DS1522+ 5-Bay DiskStation if…
The Synology DS1522+ 5-Bay DiskStation is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Synology DiskStation DS223j 2-Bay NAS and Synology DS1522+ 5-Bay DiskStation are closely matched nas storage devices with nearly identical overall scores (53 vs 55). The best choice depends on which specific features matter most to you.
Both products score similarly — it depends on your priorities.
Synology DS1522+ 5-Bay DiskStation is cheaper at $399 vs $399 for the Synology DiskStation DS223j 2-Bay NAS.
The Synology DiskStation DS223j 2-Bay NAS is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
The Synology DS1522+ 5-Bay DiskStation is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Synology DS1522+ 5-Bay DiskStation has more RAM (8GB vs 2GB), which helps with multitasking.
Reviewed by VersusMatrix Editorial Team
Last updated: May 10, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.