The Chinese company Fobase has currently discounted its Fobase Air Smartwatch and Fobase Air Pro Smartwatch to US$29.99 and US$39.99, respectively. The obvious Apple Watch clones are packed with features such as heart-rate monitoring, pedometer, sleep tracker, camera remote control, sport modes, and Apple iPhone compatibility.
https://www.notebookcheck.net/Fobase-Air-and-Air-Pro-Smartwatches-Blatant-Apple-Watch-clones-with-1-54-inch-color-screens-and-continuous-heart-rate-monitoring-from-US-29-99.476556.0.html