Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Display: 5.5 inch, 1920x 1080 pixels screen, CPU: Snapdragon 660 Octa Core 2.2GHz, Camera: 12.0MP + 12.0MP rear cameras + 16.0MP front camera, TDD-LTE B38/B39/B40/B41
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Mi Note 3 6/64GB Black [Fast-30].
Price records source(s): Gearbest
Click on image to enlarge.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).