Head to head · 2 products

1.5TB 2.5" vs 1 TB 3.5"

Verified specs side by side. The green tick marks the better value on each measurable row.

Comparing 2 products
1.5TB 2.5"
1.5TB 2.5"—Score pending
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1 TB 3.5"
1 TB 3.5"—Score pending
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The short verdict

Scores pending

We haven’t scored these yet. Use the measured differences and full specs below.

1.5TB 2.5"
—
1 TB 3.5"
—
Choose the 1.5TB 2.5" if
  • Lighter in the hand (130 vs 615 g)
Check price at eBay →
Choose the 1 TB 3.5" if
  • Cheaper today ($49.99 vs $110)
Check price at eBay →
At a glance

Key differences

Measured differences only. Ties and tiny gaps are left out.
Why pick the1.5TB 2.5"1 win
−485 gLighter in the hand130 vs 615 g
Check priceBest price · eBay · check the store for today’s priceCheck price at eBay ↗
Why pick the1 TB 3.5"1 win
−$60Cheaper today$49.99 vs $110
Check priceBest price · eBay · check the store for today’s priceCheck price at eBay ↗
Full specs

Side-by-side specifications

Battery & charging1 difference
Operating voltage
5 V
5 / 12 V
Design4 differences
Weight
130 g
615 g
Depth
100.3 mm
147 mm
Height
9.5 mm
26.1 mm
Width
69.8 mm
101.8 mm
General5 differences
Capacity
1.5 TB
1 TB
HDD capacity
1.5 TB
1 TB
HDD size
2.5"
3.5"
HDD speed
5400 RPM
5900 RPM
Manufacturer Sku
ST1500LM006
ST31000424CS

Specs verified against manufacturer data. Prices in USD before tax; we may earn a commission from qualifying purchases.

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