Product details specifications: Packing size: 90*85*32mm weight: 20 g of packing weight: 87 g of straps material: TPU rubber strap adjustment range: A 14-20cm waterproofing dust proofing class: IP68 display: OLED touch panel displacer is: 0.87 inches of OLED screen resolution: A 128*32mm battery: Lithium polymer battery battery capacity: 78mAh consecutive movement: Five days charge time: One hour wait time: I am careful on 30th: It is waterproofing, but cannot cope with hot water. As the trouble caused by the water wet becomes out of a security object, please be careful. I carry out the part of 3 of three key posts and a heart rate monitor and the with this one word instruction manual product characteristic for set contents 1* smart 1* day. Steps, walk distance, , a heart rate, sleeping hours or the state (depth of the sleep) are recorded in real time. I can record active mass and sleep quality of 24 hours every day in real time. As I download application in a terminal and I make pairing and automatically graph data and sleep data, it is useful for the improvement of the everyday lifestyle and effective training. There is it, and displays it and functions: OLED screen is equipped with, and time and open-dating, steps and distance or walk time, , a heart rate are displayed by screen. A notice function: It is an attention notice, (gentle by vibration news) other functions in a notice of message and the incoming notice of the read telephone and the state that sat down refusal for a long time: Data automatic synchronization such as the , data analysis, automatic movement identification function ( , cycling), touch screen motion gesture (I turn a wrist, and screen turns on) IP68 waterproofing IP68 waterproofing : It is not necessary to remove it at the time of the hand-washing in IP68. I cope with sweat, rain, spray. I can use the device in at the time of diving or the shower. It is waterproofing, but the hot water cannot support. It is made with the TPU material which is kind to simple design environment, and feel is the well stylish appearance very. It is available as a bracelet for the decoration as only for use regardless of the scene. As the indication is possible at time, it becomes in substitution for the watch. It incorporates optical with the reliability for data analysis and, through Powerpulse assay, tests movement and a standstill heart rate for 24 hours. Through application, a momentum, a heart rate, data including the sleep situation are clear at a glance. This wide compatibility-related supports than Android 4.3, iOS8.0 and Bluetooth 4.0. In charge simple once; let charge it, and the consecutive movement is around 5th. There is a USB connection mouth and can charge the directly. It takes only one hour until charge completion. It bathes in a shower, and the nyu ttariha result is not precocious 1 to be careful about in a bath with wearing this because it is not completely waterproofing. 2.When a bracelet does not function by any chance, by difference between each model and setting environment, please contact an exhibitor. 3.I start a measurement after around five seconds after beginning to walk to exclude trifling movement from steps. Therefore there is fewer it than real steps and is measured. 4.Because I read minute movement of the human body and cannot manage the sleep state, some errors may appear. 5.As for the product concerned, of one year is with it from a purchase day.