規格就兩種, 北美跟其他, 美版LTE台灣沒辦法用
我最後選日版32G, 價錢跟港版16G差不多(都是代購價)

NETWORKS
2G/3G/4G LTE

North America:
GSM: 850/900/1800/1900 MHz
CDMA: Band Class: 0/1/10
WCDMA: Bands: 1/2/4/5/6/8/19
LTE: Bands: 1/2/4/5/17/19/25/26/41

Rest of World:
GSM: 850/900/1800/1900 MHz
WCDMA: Bands: 1/2/4/5/6/8
LTE: Bands: 1/3/5/7/8/20