Western Digital Purple vs Seagate SkyHawk
Both lines are on Synology's and QNAP's official compatibility lists — this is not a "which works" question, but a "which fits your machine and workload" one. Everything below is read from the vendors' own HCLs, refreshed daily.
Western Digital Purple prices Seagate SkyHawk prices
Head-to-head on the official list
| Western Digital Purple | Seagate SkyHawk | |
|---|---|---|
| Listed on official HCLs | 442 models ✓ | 322 models |
| Largest listed capacity | 14 TB | 14 TB |
| Smallest listed capacity | 1 TB | 1 TB |
| Part numbers on list | 38 ✓ | 15 |
| Product line | Surveillance | Surveillance |
Which should you buy?
Coverage-wise, Western Digital Purple appears on more NAS machines (442 vs 322) — for an older or unusual model that margin can matter. Within the same tier, the honest answer is: pick the cheaper part number at your target capacity, then verify it on your exact model's page.
Both lines overlap on 271 NAS models — if yours is one of them, either drive is officially supported.
Popular part numbers (most-listed 12 of 38 / 15)
Western Digital Purple
- WD40PURZ — 4TB, 352 models
- WD20PURZ — 2TB, 307 models
- WD30PURZ — 3TB, 307 models
- WD20PURX — 2TB, 301 models
- WD30PURX — 3TB, 300 models
- WD10PURX — 1TB, 272 models
- WD60PURZ — 6TB, 270 models
- WD10PURZ — 1TB, 270 models
- WD80PURZ — 8TB, 236 models
- WD60PURX - 64T0ZY0 — 6TB, 180 models
- WD60PURZ - 85ZUFY1 — 6TB, 179 models
- WD20EJRX — 2TB, 137 models
Seagate SkyHawk
- ST3000VX009 — 3TB, 177 models
- ST4000VX007 - 2DT166 — 4TB, 142 models
- ST1000VX005 - 2EX102 — 1TB, 141 models
- ST1000VX005 - 2EZ102 — 1TB, 118 models
- ST6000VX0023 - 2EF110 — 6TB, 118 models
- ST3000VX010 - 2E3166 — 3TB, 117 models
- ST8000VX0002 - 1Z6112 — 8TB, 117 models
- ST2000VX008 - 2E3164 — 2TB, 114 models
- ST1000VX005 - 2E3162 — 1TB, 114 models
- ST10000VX0004 - 1ZE101 — 10TB, 99 models
- ST8000VX0022 - 2EJ112 — 8TB, 85 models
- ST8000VX004 - 2M1101 — 8TB, 79 models
NAS models that list both lines
These machines officially support both Western Digital Purple and Seagate SkyHawk — your real decision is workload and price, not compatibility.