Everything is ok except..
The lack of entry deletion is kind of silly if i may. I use my device for both of my parents and some of family relatives, so when my Contour Plus One model synced with their own phone, all of the data got mixed up. The simple solution is to make ‘guess mode’ available but that seems to be hassle or impossible as it may require hardware update and also planning. The next simple way is to manually delete any entry which are not from us, but the features is unavailable thus making me need to install another record app for my parents not from contour itself + turning off the bluetooth features, which is again kind of silly. Purchase this brand because of the accuracy but then i am still disappointed because of this. That would be all, thank you.