You might want to look into the Amazfit and Mi Band Devices that are supported by Gadgetbridge[1] I haven't looked into the process of watchface creation but t

You might want to look into the Amazfit and Mi Band Devices that are supported by Gadgetbridge[1] I haven't looked into the process of watchface creation but there is a huge collection[2] that can be installed via Gadgetbridge. It also has the benefit that its privacy friendly without any cloud connections and fully opensource. [1]https://www.gadgetbridge.org/ https://www.gadgetbridge.org/ [2]https://amazfitwatchfaces.com/ https://amazfitwatchfaces.com/