Customized Watch Face Support, Compatible OS Android 4.4 or above /iOS 9.0 or above, Model DT66, Female Health Management Support(Ovulation /Safe /Menstrual) /use on APP, Waterproof IP67, APP Name Wearfit2.0, “Battery Capacity: 180mAh Standby Time: About 10 days Using time: About 5 days Charging Time: About 2 hours Charging Type: Magnetic charging”, Operating Mode Full Touch+Press Button, Bluetooth Version BT 4.2, Brand DT NO.1, “Size: 1.09inch Type: IPS Resolution: 240*240pixels”.
Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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Popular Puerto Rico Singer Ozuna Keychain for Women Accessories Reggaeton Music Hey Mor Keying Jewelry Latin Fans Friends Gifts | $1.37 | – |
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.
Link: Banggood product page
1. ($32.26): BGc70579
2. ($32.26): BGbf11dd
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): BGc94b75, BG1cb3e0, BG3d3f40, BG51f436, BG54ec5d
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for DT NO.1 DT66 Smart Watch is here. The lowest price was: $15.99.
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)).