Fitness trackers are shaping up to be one of the hottest gadgets of 2018 and that means that there are more of them than ever before to choose from. Of course, that also means choosing a fitness tracker is harder than ever before, too.

Use this comparison chart to see how your fitness tracker choices stack up against each other. Just drag the name of the trackers into the slots to compare up to three activity trackers at the same time.

PhotoNameReviewsWaterproofHeart RateGPSBatteryAppTracksFeaturesBuy




  • Fitbit ZipFitbit Zip
  • Fitbit Flex 2Fitbit Flex 2
  • Fitbit AltaFitbit Alta
  • Fitbit Charge 2Fitbit Charge 2
  • Fitbit IonicFitbit Ionic
  • Xiaomi Mi Band 2 Xiaomi Mi Band 2
  • Garmin Vivofit 3Garmin Vivofit 3
  • Garmin Forerunner 15Garmin Forerunner 15
  • Garmin Forerunner 935Garmin Forerunner 935
  • Misfit Shine 2Misfit Shine 2
  • Misfit RayMisfit Ray
  • Bellabeat LEAFBellabeat LEAF
  • Ringly LuxeRingly Luxe
  • Apple Watch Series 3Apple Watch Series 3
  • SpireSpire
  • TomTom Runner 3TomTom Runner 3
  • Fitbit Alta HRFitbit Alta HR
  • Fitbit VersaFitbit Versa
Fitbit Zip4 Star Rating6 monthsiOS, Android, WindowsSteps, Distance, Calories Burned, Active Minutes Display Screen, Clock, Clip on
Fitbit Flex 24 Star Rating5 Day RechargeableiOS, Android, WindowsSteps, Distance, Calories Burned, Active Minutes, SleepAuto Exercise Tracking, Silent Alarm, Swappable Band, Move Reminders
Fitbit Alta4 Star Rating5 Day RechargeableiOS, Android, WindowsSteps, Distance, Calories Burned, Stairs Climbed, Sleep TrackingSmart Notifications, Auto Exercise Tracking, Silent Alarm, Move Reminders
Fitbit Charge 24.5 Star Rating5 Day RechargeableiOS, Android, WindowsSteps, Distance, Calories Burned, Floors Climbed, Sleep TrackingInterchangeable Bands, Cardio Fitness Score, Auto Activity Tracking, OLED Display, Silent Alarms, Multi-Sport Modes, Move Reminders, Guided Breathing
Fitbit Ionic4 Star Rating4 Days RechargeableiOS, Android, WindowsSteps, Calories Burned, Active Minutes, Pace, Distance, Continuous Heart Rate, Sleep, Weight, FoodFitbit Coach, Music Storage, Smart Notifications, Fitbit Pay
Xiaomi Mi Band 2 4 Star Rating20 Day RechargeableiOS, AndroidSteps, Running Speed, SleepLED Display, Move Reminders, Auto Workout Tracking, Splash Resistant, Android Smart Notifications
Garmin Vivofit 33.5 Star Rating1 Year ReplaceableiOS, Android, WindowsSteps, Calories, Distance, Intensity Minutes, Sleep, InactivityDisplay, Move Reminders, Daily Goals
Garmin Forerunner 154 Star Rating8 Hour GPS/5 Week TrackerMac or PC OnlySteps, Calories, Distance, GPS RouteWatch, Lap Counter, Inactivity Indicator, Optional Heart Rate Strap
Garmin Forerunner 9354.5 Star Rating2 Weeks (24 Hour GPS) RechargeableiOS, Android, WebSteps, Sleep, Heart Rate, VO2 Max, Running DynamicsSmart Notifications, Time/Date, Alarm, Customizable Watch Face & Band
Misfit Shine 23 Star Rating6 Month ReplaceableiOS, AndroidSteps, Calories, Distance, Sleep, Activity TypesInterchangeable Bands/Clips, Move Reminders, Vibration Alarm
Misfit Ray3 Star Rating6 Month ReplaceableiOS, AndroidSteps, Distance, Calories, Sleep, SportsSmart Alerts, Move Reminders, Interchangeable Bands
Bellabeat LEAF4 Star Rating6 MonthiOS, AndroidSteps, Activity, Breathing, Sleep, Period and Ovulation, Calories BurnedSmart Alarm, Helps Manage Stress, Inactivity Alarm, Jewelry Style Bands
Ringly Luxe4.5 Star Rating1-2 Days RechargeableiOS, AndroidSteps, Distance, Calories BurnedSmart Alerts, Guided Meditations, Fitness Goals
Apple Watch Series 35 Star Rating18 Hour RechargeableiOSSteps, Calories Burned, Standing, MeditationCellular Calling, Text Messaging, Alerts, Apps, Siri, Stream Music
Spire4 Star Rating7 Day RechargeableiOSBreathing & Respiratory Patterns, Steps, CaloriesWireless Charging, Guided Meditations, Breathing Exercises
TomTom Runner 34 Star Rating3 Weeks (5 Hour GPS) RechargeableiOS, Android, WebActivity, Time, Distance, Speed, Calories, MultisportBluetooth Music, Interval Training, Customizable Straps
Fitbit Alta HR4 Star Rating7 Day RechargeableiOS, Android, WindowsSteps, Calories, Distance, Sleep, Heart Rate, WorkoutsOLED, Move Reminders, Interchangeable Bands, Phone Alerts
Fitbit Versa4 Star Rating4 Day RechargeableiOS, Android, WindowsSteps, Calories, Distance, Sleep, Heart Rate, Workouts, Menstrual CycleTouchscreen, Music, Apps, On Screen Workouts, Notifications, Interchangeable Bands, GPS (from smartphone)

These are some of the most popular and best general purpose fitness trackers available. If your needs are activity-specific, you might want to check out some other fitness trackers offer specialty features such as waterproof fitness trackers for swimming, or cycling trackers, or fitness trackers for runners.

Each of these fitness activity trackers on this comparison chart is quite popular, judging by their rank as bestsellers fitness trackers on Amazon. The Fitbit is probably the best-known but we’ve seen plenty of Jawbone UP’s out in the wild as well. The Polar Loop Activity Band is probably the most modular and expandable fitness tracker on this comparison chart, largely due to its ability to connect to Bluetooth heart rate monitors.