bluetooth Version BTV 5.0, APP Name F Fit, Charging Time: About 1.5 hours, Size: 1.09inch, Type: TFT Full Touch Screen, Battery Capacity: 180 mAh, Waterproof IP68 waterproof, Charging Type: Magnetic charging, Standby Time: about 3-7days, Resolution: 240*240 pixels.
Just check coupons out (with price alert and history). What is 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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($54.41): BGc70579
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGHALLOWEEN, band10, BG11SHOP, BGCuponation10, BGWRIBAND10, 6GSGIT, BG51f436
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for KINGWEAR KW10 Pro Female Smart Watch is here. The lowest price was: $40.99.
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)).