Synology DS1821+ vs TerraMaster F4-424 Pro
Prices may vary · We may earn a commission on purchases. Learn more
AI Matrix
Powered by Claude AITerraMaster F4-424 Pro 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, TerraMaster F4-424 Pro is the recommended choice.
3 Reasons Why TerraMaster F4-424 Pro 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 TerraMaster F4-424 Pro over Synology DS1821+ means trading these off.
You give up
Nothing meaningful — TerraMaster F4-424 Pro matches or beats Synology DS1821+ on every measured spec.
You gain
- +$300 cheaper ($499 vs $799)
Spec Comparison
Synology DS1821+TerraMaster F4-424 Pro
Score Breakdown
Synology DS1821+TerraMaster F4-424 Pro
35
Drive Bays25% weight
35Tie
52
Price20% weight
74TerraMaster F4-424 Pro 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
TerraMaster F4-424 Pro
Winner✓ Pros
- ●Lower price: $499 vs $799
- ●Better value for money
Spec Comparison
| Spec | Synology DS1821+ | TerraMaster F4-424 ProW |
|---|---|---|
| Price | 799$ | 499$✓ |
| RAM | 4GB | 4GB |
| OS | DSM 7.2 | TOS 5.0 |
| Weight | 1100g | 1100g |
| Dimensions | 260 x 193 x 166 mm | 220 x 180 x 220 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 TerraMaster F4-424 Pro if…
Buy the TerraMaster F4-424 Pro 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 TerraMaster F4-424 Pro — FAQ
Synology DS1821+ vs TerraMaster F4-424 Pro: which is better?
TerraMaster F4-424 Pro 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, TerraMaster F4-424 Pro is the recommended choice.
Is Synology DS1821+ better than TerraMaster F4-424 Pro?
No, TerraMaster F4-424 Pro scores higher (43 vs 60).
Which is cheaper, Synology DS1821+ or TerraMaster F4-424 Pro?
TerraMaster F4-424 Pro 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 TerraMaster F4-424 Pro?
Buy the TerraMaster F4-424 Pro 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 TerraMaster F4-424 Pro review →All Synology NAS Storage →All TerraMaster 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.