Just check coupons out (with price alert and history). Let’s see what best price is ATM.
CPU: MTK2502, Screen size: 1.3 inch, Screen resolution: 240x 240, Frequency: GSM850/900/1800/1900MHz
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($54.15): 7d18f7
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): e2bcea, TTxBG10, aff7off, PICODICOM, bgssaff9, BGaDmITAd
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for KingWear KW28 Smartwatch? There we go.
Price records source(s): Gearbest, 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)).