I have a Bip as well, and aside from the silly name I love it. Even after 5 years a single charge lasts more than a month.
It tracks my sleep and steps, and is always on (other smartwatches turn the display off to save the battery).
It doesn’t do all the fanciest things. I can’t answer phone calls or send text messages (it will display received messages), but the advantages far away the drawbacks.