Heart Rate Monitor Comparison Chart

HRM Triax Inspire, HRM Triax 15, HRM Triax 100 Digital, Triax Elite

A1, A2, A3, M21, M22, M51, M52, M71ti, M91ti, Protrainer XT, S210, S410, S510, S610, S710, S810

Active Trainer, Fitness Trainer, Precision Trainer

$ 90-275

$59-399

$89-159

Continuous HR Display

All

All

All

Adjustable HR Range w/Alarm

All

All but A1

Fitness, Precision

Time In Target Zone

All

All but A1

Fitness, Precision

Average Heart Rate

All

All

All

Stop Watch

All

M, S Series, Protrainer

Fitness, Precision

Time & Date

All

All but A1

All

Memory/Recall/Logbook

All but Inspire

All

Fitness, Precision

Recovery Rate Calculation

100 Digital, Elite

S Series

Remembers Lap/Splits w/HR

100 Digital, Elite

S Series

Fitness, Precision

Automatic HR Range

All but A1

Fitness, Precision

View HR as % of max HR

A2, A3, S410-810

Fitness, Precision

User Replaceable Battery

All

All

Smaller size option

All but Inspire

Graphing/Visual Tracking of HR

A2, A3

Precision

Calorie Counter

A3, M Series

Fitness Calculators

M Series

Programmable Workouts

S Series

Precision

Link to PC

100 Digital, Elite

S 410-810

Personal Transmission Frequency

S Series

Digital Transmission

100 Digital, Elite

Specialty Features

Elite: Speed/Distance Monitor

Key press HR reader without strap