Mobvoi has presented the TicWatch GTK, an affordable smartwatch with a 1.3-inch display. Supposedly, the TicWatch GTK should last up to 10 days between charges too and supports over 100 pre-loaded watch faces.
https://www.notebookcheck.net/Mobvoi-TicWatch-GTK-launches-with-up-to-10-days-of-battery-life-at-a-budget-price.588406.0.html
Please do not buy inexpensive Ticwatch watches, I have a GTH, it never tracked sleep worth a dam. I offered to assist them in fixing their problems, never heard from them . Thanks for listening Ted
Is that 10 days between charges provided that you turn off every useful feature?