Synology DS1821+ vs Synology DS923+
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AI Matrix
Powered by Claude AISynology DS923+ narrowly beats the Synology DS1821+ in the nas storage category, especially in value ($499 vs $799), scoring 52 vs 47. If you want the better overall nas storage, Synology DS923+ is the recommended choice.
3 Reasons Why Synology DS923+ Is Better
- 1.Lower price: $499 vs $799
- 2.Better value score: 74 vs 52
- 3.Higher overall score: 52 vs 47
What are you giving up?
Picking Synology DS923+ over Synology DS1821+ means trading these off.
You give up
Nothing meaningful — Synology DS923+ matches or beats Synology DS1821+ on every measured spec.
You gain
- +$300 cheaper ($499 vs $799)
Spec Comparison
Synology DS1821+Synology DS923+
Score Breakdown
Synology DS1821+Synology DS923+
35
Drive Bays25% weight
35Tie
52
Price20% weight
74Synology DS923+ Winner
3
RAM20% weight
3Tie
99
Power Usage15% weight
99Tie
92
Noise10% weight
94Tie
35
Warranty10% weight
35Tie
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.
Synology DS1821+
✗ Cons
- ●Higher price: $799 vs $499
- ●Higher price relative to value
Synology DS923+
Winner✓ Pros
- ●Lower price: $499 vs $799
- ●Better value for money
Spec Comparison
| Spec | Synology DS1821+ | Synology DS923+W |
|---|---|---|
| Price | 799$ | 499$✓ |
| RAM | 4GB | 4GB |
| OS | DSM 7.2 | DSM 7.2 |
| Weight | 1100g | 1100g |
| Dimensions | 260 x 193 x 166 mm | 166 x 108 x 230 mm |
| Colors | Black | Black |
Who Should Buy
Buy Synology DS1821+ if…
The Synology DS1821+ is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Buy Synology DS923+ if…
Buy the Synology DS923+ if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Synology DS1821+ vs Synology DS923+ — FAQ
Synology DS1821+ vs Synology DS923+: which is better?
Synology DS923+ narrowly beats the Synology DS1821+ in the nas storage category, especially in value ($499 vs $799), scoring 52 vs 47. If you want the better overall nas storage, Synology DS923+ is the recommended choice.
Is Synology DS1821+ better than Synology DS923+?
No, Synology DS923+ scores higher (43 vs 60).
Which is cheaper, Synology DS1821+ or Synology DS923+?
Synology DS923+ is cheaper at $499 vs $799 for the Synology DS1821+.
Who should buy the Synology DS1821+?
The Synology DS1821+ is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Who should buy the Synology DS923+?
Buy the Synology DS923+ if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Related Comparisons
Full Synology DS1821+ review →Full Synology DS923+ review →All Synology NAS Storage →All Synology NAS Storage →
Reviewed by VersusMatrix Editorial Team
Last updated: April 25, 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.