Verdict

These are closely matched NAS drives of the same capacity - decide on price and warranty. Check the live $/TB above.

ST18000VE002
Seagate SkyHawk AI · 18TB · Surveillance
No IT price yet
WD181KRYZ
WD Gold · 18TB · Enterprise
€969 (€53.81/TB)

Value at a glance

Capacity
ST18000VE002 18 TB
WD181KRYZ 18 TB

Price history · IT, cheapest per day

WD181KRYZ €969
zoomed · drag to zoom
€969 €695 €421 Aug 2024 Dec 2024 May 2025 Oct 2025 Mar 2026 Aug 2026
ST18000VE002 WD181KRYZ
Capacity 18 TB 18 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class Surveillance Enterprise
Spindle speed 7200 RPM 7200 RPM
Cache 256 MB 512 MB
Noise (idle) - 20 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) - -
Price / TB - $34.45
Buy No IT price yet
€969
View at Amazon →

Highlighted cells mark the stronger spec for a NAS build. Failure rates from Backblaze Drive Stats where available; $/TB uses the cheapest live price. Buy links are Amazon affiliate.

ST18000VE002

No Backblaze failure data for this model.

5yr warranty · 550 TB/yr rated · 2,000,000h MTBF

WD181KRYZ

No Backblaze failure data for this model.

5yr warranty · 550 TB/yr rated · 2,500,000h MTBF