Good. Some of the results are nonsensical. I'm an average person and it said my heart rate was like 50... Take it all with a grain of salt but it is helpful if you don't want to wear a watch.
I like the design and the reading are accurate. This makes monitoring my health alot easier then wearing the watch to sleep. Only draw back is it's now chipping on the bottom due to being placed into and being taken out of the charging case. Only wear it to sleep so that issue is kind of disturbing.
I live the sleep feature! Happy that I can go without my watch o ce in a while and still get step count. The design is comfortable, wearing on my index finger.