Newest GMUI 3.0 base on Android 6.0 system, 700 ANSI Lumens and the newest RGGB quad-channels light road makes color more saturated, 2GB DDR3 RAM + 8GB eMMC Internal storage, Support AI voice function, Ultra clear 1080p FHD display, Mstar 6A838 Cortex-A53 64bits Quad-core CPU with Mali-T820 MP4 GPU makes the video smoothly.
You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
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 China.
Link: Banggood product page
1. ($467.99): BGCITYADS2019
2. ($483.59): aff7off
3. ($483.59): bgchinafest
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGGMZ6, BGaDmITAd, BGBFAFF2019
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for XGIMI Z6 Projector CN. The lowest price was: $467.99.
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)).