Not an exact match but there's a version of Xiaomi Redmi Note 3 Pro that supports US LTE bands 2 & 4 (not 12 & 17 though). It's a mid-range device (SD650/3GB/32GB) but sells for only $200 in Taiwan (so perhaps it can be bought in HK as well): http://www.mi.com/tw/note3/specs/#brand