Verdict

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

ST6000NT001
Seagate IronWolf Pro · 6TB · NAS-Pro
£279 (£46.51/TB)
WD6004FRYZ
WD Gold · 6TB · Enterprise
£448 (£74.75/TB)

Value at a glance

Price / TB
ST6000NT001 $50.76
WD6004FRYZ $55.98
Capacity
ST6000NT001 6 TB
WD6004FRYZ 6 TB
Noise (idle)
ST6000NT001 28 dB
WD6004FRYZ 20 dB

Price history · UK, cheapest per day

ST6000NT001 £279 WD6004FRYZ £448
zoomed · drag to zoom
£448 £303 £157 Jul 2024 Dec 2024 May 2025 Oct 2025 Feb 2026 Jul 2026
ST6000NT001 WD6004FRYZ
Capacity 6 TB 6 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class NAS-Pro Enterprise
Spindle speed 7200 RPM 7200 RPM
Cache 256 MB 256 MB
Noise (idle) 28 dB 20 dB
Fill Air Air
Interface SATA SATA
Failure rate (AFR) - -
Price / TB $50.76 $55.98
Buy
£279
View at Amazon →
£448
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.

ST6000NT001

No Backblaze failure data for this model.

5yr warranty · 300 TB/yr rated · 1,200,000h MTBF

WD6004FRYZ

No Backblaze failure data for this model.

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