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Seagate SkyHawk AI vs WD Purple Pro 10TB

There's nothing clear-cut between them on paper, so buy whichever's cheaper on the day.

Compared on 10 specs from the makers' datasheets, and a group only gets a winner when the gap between the two is clear-cut.

Side by side

SpecSeagate SkyHawk AIWD Purple Pro
Reliability Backblaze doesn't run either
Backblaze failure rateLifetime, 95% interval in brackets No data No data
Warranty and workload Level
Warranty 5 years 5 years
Workload ratingReads and writes a year 550 TB/yr 550 TB/yr
Where it fits Level
Line Surveillance Surveillance
Rated NAS bays Not stated Not stated
Recording CMR CMR
Noise and speed Level
Spindle speedFaster reads quicker, slower is quieter 7,200 rpm 7,200 rpm
Noise on the datasheetIdle / seeking, the maker's figure 28 / 32 dB 34 / 39 dB
Power Within 10% at idle
Power at idleMaker's average 7.4 W 8.2 W
Power in useMaker's average 9 W 9.1 W

The Backblaze figures are lifetime annualised failure rates (Source: Backblaze), and we only call reliability when the two 95% intervals don't overlap.