Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Compatible OS Android 5.1 or above, Resolution: 454*454pixels 372ppi, Battery Capacity: 800mAh, iOS 9.0 or above, Size: 1.39inch, APP Name Wiiwatch2, Charging Time: About 3.5 hours, CPU: Dual Processor: MTK6739 1.25GHZ + NRF52840, ROM: 32 GB, Operating Mode Touch Screen + Function Key, Charging Type: Magnetic charging, Operating System Android 7.1.1 + Lite OS System, Using time: About 2-3 days, Standby Time: About 5-7 days (7 days standby based on switching to the Persistent Mode), Camera 8.0MP, RAM: 3 GB, Type: AMOLED
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. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($162.89): bgwp
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGOP99, TTxBG10, BGOptimuspro, aff7off, BGOPTIMUS, kospet10, BG3CSUM, BGUS001, BGBF30, BGKOSPRO, BGPro19, BGOPTIMUS3, BGOptimus139, BGKOSPET20, BGPro149, BGwkKosPro, BGKOSPET10, BGAFF10OFF, Email5, BGSWATCH10
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Kospet Optimus Pro 3/32GB Smart Watch [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Kospet Optimus Pro 3/32GB Smart Watch.
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)).