16: 10 ratio (~245 ppi density), Display Size 5.5 inch, Resolution 720x 1440 pixels, CPU Snapdragon 425 (28 nm), OS Android 8 (Oreo) with new ASUS ZenUI, ROM 16GB, GPU Adreno 308, RAM 2GB, Quad-core 1.4 GHz Cortex-A53, HD+, 88.1 cm2 (~84.4% screen-to-body ratio).
Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Hong Kong. I can’t find any active coupons for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGZB555KL, Email5
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for ASUS ZenFone Max (M1) ZB555KL 2/16GB. The lowest price was: $69.99.
Price records source(s): Banggood
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)).