IP67 Smart Watch Heart Rate Monitor Weather Forecast Fitness Call Reminder Waterproof Bluetooth Bracelet pk V11 | Электроника

IP67 Smart Watch Heart Rate Monitor Weather Forecast Fitness Call Reminder Waterproof Bluetooth Bracelet pk V11 | Электроника

 W8 Smart Watch Heart Rate Monitor Weather Forecast Fitness Watch Call Reminder Waterproof Bluetooth Smart Band Sleep Monitor Sport Watch Music Control Smart Bracelet pk V11 Free Shipping Support Dropshipping

Feature:Wristband Size(mm):about 255mm*20mm*2.3mm Product Net Weight (g): about 45g Main Display : 1.3 " TFT 240*240 Type of battery: li-ion battery Battery Capacity: 170mAh Standby time: about 5-7 days Normal use time : about 3-5 days Charging Time: About 2hours Alert type: Vibration Function: Step counter: Support 24h/12h time format selection: support Calories: Support Sleep Monitoring: Support Heart rate: support Alarm: Support Continuous Heart Rate Monitoring: Support Sedentary reminder: Support Blood Pressure: Support Stopwatch: Support Sports Mode: Support Find bracelet: support UI interface selection : support Music control: support "Call, SMS, WeChat, QQ, skype, whatsapp, facebook, linkedin, twitter, viber,line notification alert": Support Shake Photograph: Support "Do not disturb mode (22:00-8:00 bracelet stop receiving notification, raise the hand bright screen function has no effect)": Support Find the phone: support Factory reset: Support -The bracelet is an international version, only English, but the content of the message will synchronize the language of the phone（Support English, French, German, Japanese, Spanish, Italian, Russian, Czech, Portuguese, Turkish） - The bracelet can't touch the hot water because the hot water has water vapor. Package Contents: 1 x Smart Bracelet,1x charger , 1x English User Manual Note: For the problem that the bracelet can measure the heart rate in things and in the air, the following explanation is made: 1.At present, the mainstream heart rate bracelets on the market adopt the same measurement method. The principle is not complicated, that is, the PMG signal of the radial artery is obtained by the reflective photoelectric measurement method, and the fast Fourier transform is performed on the PPG signal to analyze the frequency domain. To achieve the detection of the human heart rate. To put it simply, it is to use a light to the artery and then reflect it back. Based on the change of the reflected light, the heart rate of the human body is calculated. 2.Due to many factors such as the physiological structure of the human body, the color of muscles and blood, green light is the color with the highest passing rate in the human body. Therefore, the light source of the heart rate sensor uses green light to achieve minimum loss and interference. 3.Heart rate wristband detection focuses on human tissue. Some data is also read for non-human objects. This is a known and normal phenomenon. After the data is based on the principle of light reflection, the heart rate detection will have a reading. This situation cannot be All avoided, so there will be problems with heart rate data in the case of heart rate bracelet (table) in the case of "air test".

why choose us  ? 【COLOR SCREEN&&THREE INTERFACES】All-touch screen, easy operation and sensitive response, the color screen the sunlight is clearly visible, the bracelet have two main interface options. 【3 EXERCISE MODES】It supports 3 exercise modes including cycling ,running, climbing 【MORE FEATURES】The fitness tracker supports more accurate heart rate monitoring, distance, weather forecast, speed, calories, sleep monitoring, SMS, SNS message, sedentary remind, incoming call, alarm, schedule, remote shutter，check the phone and more. You can read messages on the fitness tracker from Facebook, What Sapp, Instagram , Twitter, Line,  etc. 【WIDE COMPATIBILITY】The app supports most smart phones with Bluetooth 4.1,Support system: iOS 8.0 or above , Android 4.4 or above