Accurate measurements the tape holder converts the reading from a straight line to a circumference. In perimeter mode, other tape measures can have significant inaccuracy (up to 0.84 inches), while this digital body tape measure provides more precise results with minimal deviation (as little as 0.01 inches or 0.1 centimeters), ensuring consistent measurements.Easy to use the well-made and smooth anthropometric tape features a locking mechanism. Pull out the tape, wrap it around your body, clip it in place, and retract until the display shows the measurement. This process is much more convenient than using a loose sewing tape.Track your progress the companion app records your measurement history and displays it in clear charts, covering 13 body parts and 12 body size metrics. By selecting any data point, you can view trends over weeks, months, or years, helping you better understand your body changes.Sync with popular fitness apps available as a free download on the App Store and Google Play. The tape measure seamlessly syncs with leading fitness platforms, including Apple Health, Google Fit, and Fitbit.Why is perimeter measurement as important as weight during weight loss? This tool helps you track both. The digital body measuring tape works well with compatible smart scales. Both devices operate through the same application.Multi-functional use ideal for weight loss tracking, exercise monitoring, waist training, sewing projects, and determining clothing sizes.Product name: Intelligent health ruler Product dimensions: 66 x 66 x 28 mm Resolution: 0.1 cm Measurement accuracy: 2% Maximum measuring range: 1.5 m Operating temperature: 0C to 50C Working humidity: 10% to 80% RH (non-condensing)