Zepp Life huge amount of GB

Hi, I am using a bracelet Mi (supported by Zepp Life APP). In one year it generated over 70 GB. Do you have tips about to only partially remove or the data. It appears that we can only remove all data or, data per data (which would be crazy), but not for periods. Any tip how to reduce the impact of the data in the iPhone storage? I think I will have to get an Apple watch...

Zepp Life huge amount of GB
 
 
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