You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Display: 5.15 inch 1920x 1080 pixels screen with 428 PPI, 94.4 percent color gamut, Bluetooth: 5.0, Bluetooth HID, Cameras: front 8.0MP + rear 12.0MP + 12.0MP with AF and flash light, Version: 6GB RAM + 64GB ROM, GPU: Adreno 540 653MHz, CPU: Snapdragon 835 Octa Core 2.45GHz
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Aogstar Unlocked Electronic Panel Board Mainboard Motherboard Unlocked With Chips Circuits Flex Cable For Xiaomi 6 Mi 6 Mi6 M6 | $60.21 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Mi6 6/64GB White.
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)).