Thread: 510, Power supply: 2x 18650 battery (not included), Wattage range: 5 – 220W, Resistance range: 0.03 – 5.0 ohm, TC range: 200 – 600 Deg.F.
Basically copy coupon, view price history or create e-mail price alert. What is best price?
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Price history and price alert
Check out price history chart (for all/most countries) for Vaporesso Polar 220W TC Mod Gray. The lowest price was: $39.99.
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)).