You can get Tuya Smart WiFi for 63.99 USD using coupon code (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is best price?
Latest coupon code price check (UTC time):
Banggood (63.99 USD)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. Low/high price? Hmmm, price is higher than average (which is 62.30 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 63.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG589b2e, BGAUGUST8, BGCAPITALOS8, BGCOUPERT8, BG8FORMULAMX
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
Click here… to search for W2 Tuya Smart WiFi Door Viewer Wireless Video Doorbell on Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for W2 Tuya Smart WiFi Door Viewer Wireless Video Doorbell.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).