Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
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):
Using time: About 7 days, APP Name Huawei Sport Health, Battery Capacity: 215mAh, Product weight: 29g(Without strap), Charging Type: Dock charging, Type: AMOLED, Material: Leather, Product size: 42×42×9mm, Resolution: 454*454pixels, Width: About 20mm, Charging Time: About 2 hours, Size: 1.22 inch, Standby Time: About 14 days
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($277.91): bgwp
this code has to be applied in your cart 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): PICODICOM, BGGT242F, Email5
(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 Huawei WATCH GT 2 Fashion 42mm Smart Watch? There we go.
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)).