The former is more power - efficient than the latter, so that says a lot on why the newly announced devices can go longer than
their predecessors on a single charge.
Not exact matches
In addition to fitting a heart rate sensor inside of Alta's diminutive frame, Fitbit somehow managed to fit a higher capacity battery that's capable of keeping the Alta HR going for seven days straight
on a
single charge, compared to the five days of battery life its
predecessor offered.
Of course, it has a lot of differences compared with its
predecessor, but one of the most welcome changes is that it can last up to six hours
on a
single charge rather than three.