The obvious advantage of a 24 bit instrument such as the IviumStat.h, compared to a 16 bit instrument, is the possibility to use much smaller increments in applied and measured values (i.e. resolution). This results in better control of your electrochemical process and enables slower scan rates. But did you know that increased resolution also leads to improved accuracy and linearity, better stability and control, and smaller gain drifts?
Additionally, a better resolution allows you to use a larger current range for measuring smaller signals. This means that you can measure a larger signal range without having to switch current ranges. It also means that you can better measure small signals on top of large background signals.
Furthermore: switching current ranges is undesirable because of discontinuities/noise and because it is slow.

The are also significant advantages for EIS/impedance measurements:

• Faster acquisition - less 're-measurements' required
• Higher dynamic range - measurement of AC and DC signal component simultaneously
• Lower amplitude and phase noise - less bit noise/linearity errors, better background noise suppression