I’m looking to get one as a gift. Harvey Norman have them for sale. 

https://www.harveynorman.co.nz/phone-and-gps/mobile-phone-accessories/tile-mate-bluetooth-tracker-single.html

https://www.harveynorman.co.nz/phone-and-gps/mobile-phone-accessories/tile-urb-mate-bluetooth-tracker-single.html

but I’m wondering why there’s such a price difference in what appears to be the same product. 
they have different SKU but look to be otherwise the same. 
perhaps One is an earlier model?

would appreciate some help

TIA.