The accompanying paper[1] claims the phone lasts four hours running the current version of fingerIO, but also that improvements could be made to preserve power

The accompanying paper[1] claims the phone lasts four hours running the current version of fingerIO, but also that improvements could be made to preserve power (such as reducing the sampling rate). [1] http://fingerio.cs.washington.edu/fingerio.pdf http://fingerio.cs.washington.edu/fingerio.pdf