Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Chipset: Allwinner V3, Screen resolution: 320×240, Battery Capacity (mAh): 900mAh, Wide Angle: 170 degree wide angle, Working Time: 1.5h
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Do you need price history chart (for all/most countries) for DveeTech S2 Action Camera? There we go.
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)).