I just received an email from geekbuying with a few Black Friday deals. Looks to be the cheapest price I can remember seeing on both the Xiaomi Mi Band 1S and the Xiaomi Mi 5.
Black Friday 48 Hours Smartphone Crazy Sale - Starts at 18:00 UTC+8 Nov.24th (Friday Nov.25th 04:00 AEST)
Xiaomi Mi Band 1S
Xiaomi Mi 5 (32GB/3GB)
Mi5 with B28?