Will fingerprint sensor work if I buy an unlocked device?

[Hafar949]

If I buy unlocked xperia xz premium its mean the fingerprint will work? 

And what mean unlocked devices? I can't update? I 

[Uliwooly]

@Hafar949

were you able to unlock your device?

[Andyben]

http://www.handtec.co.uk/sony-xperia-xz-premium-64gb-deepsea-black.html

just buy this, no issues.

non-US spec so fingerprint scanner works