Drive comparison
ST4000VX005 vs ST4000VX015
Seagate SkyHawk 4TB and Seagate SkyHawk 4TB, compared using published manufacturer specifications.
Seagate
SkyHawk 4TB
ST4000VX005
SATA 6 Gb/s · 3.5-inch
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SkyHawk 4TB
ST4000VX015
SATA 6 Gb/s · 3.5-inch
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What differs between these models?
- Recording: ST4000VX005 lists SMR; ST4000VX015 lists CMR.
A larger cache, higher RPM or higher advertised sequential speed alone does not establish which drive is better for your workload.
Specifications side by side
| Specification | ST4000VX005 | ST4000VX015 |
|---|---|---|
| Manufacturer | Seagate | Seagate |
| Product family | SkyHawk | SkyHawk |
| Model number | ST4000VX005 | ST4000VX015 |
| Capacity (TB) | 4 | 4 |
| Interface | SATA 6 Gb/s | SATA 6 Gb/s |
| Recording | SMR | CMR |
| Cache (MB) | 256 | 256 |
| Form factor | 3.5-inch | 3.5-inch |
| Load/unload cycles | 600000 | 600000 |
| Average idle power (W) | 2.5 | 2.5 |
| Power-on hours per year | 8760 | 8760 |
| Workload rating (TB/year) | 180 | 180 |
| Average operating power (W) | 3.7 | 3.7 |
| Manufacturer limited warranty | 3 years (eligible new drives) | 3 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 180 | 180 |
| Cameras supported (up to) | Not recorded | 64 |
Compatibility and buying checks
- One or both drives use SMR recording. Check sustained-write and array requirements before choosing one for a NAS or a write-heavy workload.
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
ST4000VX005
Seagate SkyHawk manufacturer specifications ↗ · pages 3
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.
ST4000VX015
Seagate SkyHawk manufacturer specifications ↗ · pages 2
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.