Though they look similar, the firmware is different in the MIR SmartOne and the ZEPHYRx Spirobank.
- The MIR SmartOne only measures Peak Flow (PEF) and FEV1 values
- The ZEPHYRx Home Spirometer (Spirobank), measures FVC, FEV1, FVC/FEV1, FEV6, FEF2575, PEF, FIVC, FET and is able to generate a full flow volume curve by measuring the final inhale.