J-style fitness tracker bluetooth 4.0 heart rate monitor smart bracelet health sleep monitoring

J-style fitness tracker bluetooth 4.0 heart rate monitor,smart bracelet health sleep monitoring

Functions:
Time, Date, Battery Indicator,Steps (walking & running),Calories Burned ,Walking,Distance,Activity Time,The Exercise Goal %,Sleep quality & performance
Constant Heart rate Monitor (Six heart rate training zone, includes Rest HR, warming up, fat burning, Aerobics, Anerobic, Strenuous exercise),Vibration alarm (for both wake-up alarm & Activity Alarm & customized alarm like pill alarm, drink alarm, etc),Phone notifications include incoming call/ text message, WhatsApp, Facebook, twitter, VK, Wechat, QQ, etc
Packing:
1 x smart Bluetooth bracelet,
1 x standard USB charge cable,
1 x user manual
1 x gift box
Product Description
ModelJA-1638Sensors & Key Components3D accelerometer sensor,Optical Heart Rate Sensor,Touch sensor for function control 0.91’OLEDSensorBOSCH 3D accelerometer sensorWaterproofIP67Connect to IOS and Andriod with BLE 4.0Battery130mAh lithium rechargeable batteryMaterialPC for body, Silicone for wrist band, Stainless steal for the buckle,PC for charger
Company Information
APP
Download the application “J-STYLE Heart Rate“ from the Apple App Store or Google Play and install into your smart phone, then follow our instruction.
FAQ
Q1: How accurate of J-Style Heart Rate?
A1:Different from most of the competitors, we write our algorithm by ourselves. When we tune our algorithm for Heart rate accuracy, we compared it with big brand on market and also compared with the medical devices used in the hospital.
Q2: How to Measure the Heart Rate?
A2: Due to the characteristics of the optical sensor, the user has to wear very tightly to get the very accurate heart rate result. Go to the Heart Rate Display and long press to enter into heart Rate mode, then the device will measure your heart rate continuously.
Q3:How does the heart rate guide your exercise?
A3:Different heart rate in exercise means different train intensity.
For example, warming up is good for for burning fat. Aerobics is great for your cardiovascular system. This helps your muscles become stronger and more efficient and you develop your bodies ability to transport oxygen to (and carbon dioxide away from) your muscles. You should be spending the majority of your training time in this zone. Anaerobic is a sign that you have become serious about your sport. In this zone your body develops its ability to handle lactic acid.
J-Style Heart Rate Monitor will help you to exercise like a professional.
Q4: How to enter into sleep mode?
A4: The device can recognize and calculate the sleep status without any action by users. It will track your sleep hours and quality. If you wear the bracelet at night and set the alarm clock, then it will wake you up with slight vibration.
Packaging & Shipping