| | FitSense | FreeStyle | Mark of Fitness |
Models | FS-1Pro + HR, FS-1 Pro + HR+Netlink | ECG 1T, 2T, 3T, 4T, 5T | MF-120, 140, 160 |
Cost Range | $249-299 | $70-140 | $69-120 |
| Basic Features | | | |
| | Continuous HR Display | All | All | All |
| Adjustable HR Range w/Alarm | All | ECG 3T,4T,5T | MF-140 MF-160 |
| Time In Target Zone | All | All but ECG 1T | MF-160 |
| Average Heart Rate | | ECG 5T | |
| Stop Watch | All | ECG 3T,4T,5T | MF-140 MF-160 |
| Time & Date | All | All | MF-140 MF-160 |
| Memory/Recall/Logbook | All | ECG 5T | MF 160 |
| Advanced Features | | | |
| Recovery Rate Calculation | | | MF-160 |
| Remembers Lap/Splits w/HR | | ECG 5T | |
| Automatic HR Range | | ECG 2T | |
| View HR as % of max HR | | | |
| | User Replaceable Battery | All | All | All |
| Smaller size option | | All | |
| | Graphing/Visual Tracking of HR | | | |
| Calorie Counter | All | ECG 4T, 5T | |
| Fitness Calculators | | | |
| Programmable Workouts | All | | |
| Link to PC | Netlink | | |
| | Personal Transmission Frequency | | | |
| | Digital Transmission | | | |
| Specialty Features | Speed/Distance Monitor | | |