For more detail on individual models and features, visit each company's website (just click on the manufacturer name below)
Acumen
Models
Basix ES, Plus ES, Excel ES, TZ-Max 100, TZ-Max 50
E-10, E-15/16, E-20, E-300, E-350/351
Cost Range
$79-299
Continuous HR Display
All
Adjustable HR Range w/Alarm
Time In Target Zone
All but Basix ES
E-300, E-350/351
Average Heart Rate
TZ-Max 50,100
Stop Watch
Time & Date
Memory/Recall/Logbook
Recovery Rate Calculation
TZ Max 100
Remembers Lap/Splits w/HR
Excel ES, TZ-Max 50,100
Automatic HR Range
View HR as % of max HR
User Replaceable Battery
Smaller size option
Basix ES, Plus ES, Excel ES
Graphing/Visual Tracking of HR
Calorie Counter
All but TZ -Max 50
Fitness Calculators
Basix Plus ES, Excel ES
Programmable Workouts
Link to PC
Personal Transmission Frequency
Specialty Features