Basically copy coupon, view price history or create e-mail price alert. Best price?
Standby Time: About 24 months, Battery Capacity: 610 mAh, 5ATM IP67 (Deepwater waterproof is not supported), Watch data Save data for past 15 days, Type: FSTN / Full View(Sunlight-Visible), Energy saving mode: About 33 months, Size: 1.24inch, CR2450 (Japan Maxell)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($25.19): band10
paste coupon code in your cart and click Apply 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): VIBE3, e2bcea, 16VIBE3, 16vibe3, BG16V3, 0e7f33, FBCOUPON1, BGCuponation10
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for Zeblaze VIBE 3 Flagship Rugged Smart Watch.
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)).