Aliexpress
Click here… to search for SENBONO LIFE1 Smart Watch on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (29.32 USD): BGc70579
Coupon (29.32 USD): BGbf11dd
(CouponsFromChina.com tip: put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Old coupons (from the oldest to the newest): BG699225
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Do you need price history chart (for all/most countries) for SENBONO LIFE1 Smart Watch? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).