The M7C smartwatch by SMAWATCH includes a GPS module, a touchscreen display, a heart rate monitor and a host of workout modes for US$30. The SMAWATCH M7C is available from AliExpress.
https://www.notebookcheck.net/M7C-A-budget-smartwatch-with-a-touchscreen-display-GPS-and-a-heart-rate-monitor.492524.0.html