‘Little Circles’

They're at the bottom half of one of the watch faces on my watch.

They are pretty tiny - each is around 50mm (0.2in) in diameter. You can personalise each circle to store a different type of data - in this case, total steps today, weather and sunset time (the smaller one above shows the seconds). 

It's not the one I use - I find everything too small for my eyes - but this type is definitely trendy.