Amazfit Watch faces

I always walk or run with my mobile. For several reasons: music, safety... calls
If I would find a watch without GPS but with a good screen I had purchase instead of my GTS, It would be cheaper and what about the battery lasting? But even better, the mobile GPS is faster and more accurate so....
Is there any chance to run the watch using only the mobilephone GPS? I mean, when walking or running.

Try out the "treadmill" mode instead of the "outdoor running" mode.... here is no gps in use.