Found in the wild: absurdly low price → $30.99 (Banggood). TK79 1.47-inch HD Screen ECG Micro Physical Examination Pulse Therapy Five Oragan Examination Heart Rate Blood Pressure Blood Oxygen Monitor Sleep Monitoring Uric Acid Function Blood Lipid Blood Glucose Measurement IP68 Waterproof Smart Watch – Black.
Updated: 04-08-2025
Banggood
Warehouse in China.
Link: TK79 1.47-inch Smart Watch
Regular price: $32.99
$30.99 with coupon: BG4ee124
Additional Banggood coupons:
1. First page
2. Second page
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
Price history (for all/most countries) for TK79 1.47-inch Smart Watch is here. The lowest price was: $30.99.
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)).