Unlike the traditional tapes, RENPHO digital smart measure tape can connects to RENPHO app via Bluetooth, it can automatically send and store data to the app, so you won't miss any measurements to find out the physical change of your body. You could also view the measurements in graph in a weekly, monthly or yearly basis to track the trends on your phone for the 8 body parts. The users of the RENPHO smart tape is unlimited, one smart tape can be used by the whole family to record and memorize all member's information. It can also be used as a sewing tape. Dual measuring way allows measuring both the length and the circumference. It has a large bright large LCD screen, which is easier to read. The Lock pin and retractable button help to get accurate measurements. smart tape with its small size and lightweight body, it's easy to carry and store. Color: White.