Treadmill is 100% accurate. The treadmill will be more accurate from your watch since it's actually measuring your distance, while your watch is more or less calculating your distance based on your movement and run speed, activity, etc.
For most people, jumping on a treadmill and going by feel is more than good enough. Distance is typically figured on a treadmill by simple multiplication (time multiplied by speed). However, effort on a treadmill with no incline is not an "accurate" measurement of how you would perform running outside.
Is Running on a Treadmill Harder or Easier Than Running Outside? The research concludes that when runners speed up on a treadmill, they have higher heart rates and report feeling more fatigued than when they run the same speed on land. Runners display more endurance running outside than on a treadmill.
Getting started. Firstly, using Zwift Run is free – no subscription required.
GPS watches are built to track outdoor running movement. So, they won't offer accurate metrics when tracking movement indoors on a treadmill. To make the reading more accurate on treadmills at home or the gym, you'll ultimately need to get a Foot Pod that links up to your GPS watch or use a pedometer.
Will the Apple watch track the number of steps taken walking on a treadmill? Yes, the Apple Watch will track your indoor walk on a treadmill. You can help the accuracy of the Apple Watch by calibrating it, and also using the Indoor Walk workout in the Workout app.
If you've changed the way you workout recently, your Apple Watch might need a quick calibration. For instance, your Watch might record a much slower pace on a treadmill indoors compared to when you run outside, even if your pace and distance are very similar (or vice versa).
Fitbit has a built-in exercise mode for treadmills which can be used during running Treadmill. You will follow your steps as well as your cardiac rate during the exercise if you are using a Fitbit with “treadmill” mode. In order to obtain more precise steps, you can also calibrate the treadmill steps.
Garmins show a pace on treadmill using an accelerometer. I've seen it show about the same pace no matter how fast I run and is inaccurate enough to be useless. The Garmin footpod is accurate at the speed you calibrate it on, and inaccurate otherwise. Stryd is accurate always.
Calibrating the Treadmill Distance
- Start a treadmill activity (Starting an Activity), and run at least 1.5 km (1 mi.) on the treadmill.
- After you complete your run, select .
- Select an option: To calibrate the treadmill distance the first time, select Save.
- Check the treadmill display for the distance traveled, and enter the distance on your device.
Speed calibration is a process that is used to correct imbalances in the machine's operating speed. Please note that this procedure involves pushing the machine to its maximum speed very quickly. Do NOT stand on the treadmill while performing this procedure. First, you need to enter calibration mode on the console.
Hold the touchscreen. Select Settings > Sensors & Accessories > Compass > Calibrate > Start. Follow the on-screen instructions. TIP: Move your wrist in a small figure eight motion until a message appears.
While Garmin's wrist heart rate monitor technology is state of the art, there are inherent limitations with the technology that may cause some of the heart rate readings to be inaccurate.
Calibrating Your Speed Sensor
- Hold .
- Select. > Sensors > Speed/Cadence > Wheel Size.
- Select an option: Select Auto to automatically calculate your wheel size and calibrate your speed sensor. Select Manual, and enter your wheel size to manually calibrate your speed sensor (Wheel Size and Circumference).
You can manually calibrate the barometric altimeter if you know the correct elevation.
- Hold MENU.
- Select Settings > Sensors & Accessories > Altimeter.
- Select an option: To calibrate automatically from your GPS starting point, select Auto Cal., and select an option. To enter the current elevation, select Calibrate.
Overall accuracyThe reading doesn't change because of the weight of the user, the intensity of the workout, or the incline of the treadmill. It's important to note, however, that treadmills may not always provide an accurate measurement of distance. In these cases, the treadmill may calculate distance inaccurately.
Enabling These Features
- From the watch face, press and hold Up/Menu to access the main menu.
- Select Settings.
- Select Activities & Apps.
- Select activity profile to be customized.
- Select the activity settings.
- Select 3D Speed and/or 3D Distance.
- Press GPS to Enable.
While Strava does not work on treadmills in settings that have no access to GPS, individuals can manually enter data from treadmills into Strava. Although Strava does not seamlessly work on treadmills, there are other alternatives to track mileage, as well as other alternatives to treadmills.
The GPS location accuracy of Garmin fitness devices is around 3 meters (10 feet), 95% of the time. This means, at any given time, your device will save your location within 3 meters of your actual location.
Recording with the Strava Mobile AppOn the mobile app, is it not currently possible to record indoor runs, indoor rides, or measure distance using a pedometer or other sensors. However, you can record indoor runs with the Strava Apple Watch App using your watch's pedometer to measure distance.
The chart represents well over 10,000 measurements, which I believe is enough to give a good indication of accuracy. The Garmin HRM4 has a trueness of -1.0 steps per minute (SPM), which suggests that over the course of a run, it will give you an average reading that is only one SPM too low.
Manual InputThe most straightforward and sensible stand-in for tracking treadmill sessions using Strava is to track your distance and time using the treadmill, then insert it into the Strava website using a laptop or computer.
Many runners still own the classic Garmin footpod, the latest version of which was only officially discontinued in 2019. Over time GPS became the standard for measuring speed and distance.
Automatic Calibration
- Power on the Foot Pod and go to the main menu.
- Select "Settings," "General" and then "Accessories."
- Select "Foot Pod" and "Calibrate." Choose "800 m" and select "Continue."
- Press "Start" to begin calibration.
- Press "Stop" when you finish walking to complete the calibration.
A small, replaceable watch battery powers the foot pod for a year of training. Unlike simple pedometers, this foot pod uses advanced MEMS inertial-sensor technology to analyze your movements and is responsive to stride-length changes to achieve 98 percent accuracy for speed and distance.
The foot pod counts cadence (steps per minute) that would be the foot with the pod attached. As noted in answer to your other (same) question, if you need actual step-counting, buy the Garmin 410 -AND- the Garmin Foot Pod. The Pod will count the steps and the 410 will record them.
