You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
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):
Microsoft Windows 10 OS, Intel Core i5-7200U Quad Core 2.6GHz, up to 2.71GHz, Intel HD Graphics 620, 4GB DDR4 RAM for Advanced Multitasking, up to 16GB, 128GB SSD Storage Capacity, 45000mAh Large Capacity Battery
Price history and price alert
Here is price history (for all/most countries) for Microsoft Surface 4/128GB Laptop.
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)).