Smart Measure Tool Easy Measure : Smart Measure Tape shows you the distance to objects seen through the camera lens of your Android device. All without a tape measure or ruler! Use your mobile phone as a measurement tool, accurate and efficient. It can measure length, spacing, angle and other parameters. The unit can select cm and inch, use ID card or bank card to calibrate the mobile ruler, and save and view the measurement record with one key. As a portable ruler, it has complete functions,