just like the multiple weigh-ins per day was finally eventually added (because it's obvious)
vivosmart is smallest/lightest sleep tracker with spo2 so it makes sense for athletes to use it but athletes also "power nap" after hard workouts, etc. and there is no support for that
also 24/7 spo2 tracking would be nice, I've been trying to trick the vivosmart to do that by setting a 24 hour sleep cycle but it doesn't quite work, it seems to try it for awhile but gives up
just change the graphs to a 24 hour graph and show the multiple sleep sessions if they exist