$41.99 – ET280 2.04inch AMOLED Display bluetooth Call ECG Function Uric Acid Blood Lipids Blood Glucose Testing Heart Rate Blood Pressure Blood Oxygen Monitor Sleep Monitoring SOS Emergency Call Multi-sport Modes Music Playback IP68 Waterproof Smart Watch – Black Steel.
I have checked all old coupons and price is $41.99 for ET280 2.04inch AMOLED Smart Watch (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Latest coupon code price check (UTC time):
Banggood ($41.99)
Banggood warehouse is located in China. Coupons for ET280 2.04inch AMOLED Smart Watch? Nope, there’re no coupons in Banggood. But wait a sec… Is it a good price? From what I can see this price is higher than average price ($34.79).
Link: Banggood product page
Price: $41.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGecd65e, BGET280
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for ET280 2.04inch AMOLED Smart Watch. The lowest price was: $21.99.
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)).