Note: Commissions may be earned from the links below. Best Fitness Trackers Under $100 Fitbit Inspire 3 Fitbit Inspire 3 Health &-Fitness-Tracker with Stress Management, Workout Intensity, Sleep Tracking, 24/7 Heart Rate and more, Morning Glow/Black, One Size (S & L Bands Included) Price: $89.00 24 used & new available from $73.04 Check Price View on Amazon Fitbit Charge 5 Fitbit Charge 5 Advanced Health & Fitness Tracker with Built-in GPS, Stress Management Tools, Sleep Tracking, 24/7 Heart Rate and More, Lunar White/Soft Gold, One Size (S &L Bands Included) Price: $142.99 2 used & new available from $142.99 Check Price View on Amazon Whoop 4.0 WHOOP 4.0 with 12 Month Subscription – Wearable Health, Fitness & Activity Tracker – Continuous Monitoring, Performance Optimization, Heart Rate Tracking – Improve Sleep, Strain, Recovery, Wellness Price: $127.00 15 used & new available from $122.65 Check Price View on Amazon Wyze Band WYZE Band Fitness Tracker with Alexa Built-in, Activity Tracker Watch with Heart Rate Monitor, Smart Fitness Band with Step Counter, Calorie Counter, Pedometer Water Resistant, Black Price: $56.90 1 used & new available from Check Price View on Amazon Garmin Vivosmart 5 Garmin vívosmart® 5, Fitness Tracker, Long-Lasting Battery, Simple Design, Black Price: $149.99 12 used & new available from $139.99 Check Price View on Amazon 0