Recommended reason 
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<br /> 24 hours PER sec sustained heart rate monitoring--UPGRADED fitness tracker can support 24 hours per second to monitor your heart rate, different from the past monitoring per hour; Monitoring your heart rate to help you do exercise scientifically and help you get a better understanding of your fitness level.
<br /> IP68 waterproof grade--This smart band can be used for washing, showering, swimming, and even diving underwater 60 meters; You do not need to take it off while doing these activities.
<br /> Sleep monitor--Synchronize your sleep time every night and analyze your sleep quality by the sleep trend graphs; Accurately monitor total effective sleeping time and motions every night, you can better understand your sleeping quality.
<br /> Multi functions --Pedometer, Calories, Distance, Heart Rate Monitor, Sleep quality measurement, Call reminder, Alarm clock, Search bracelet and so on, these amazing features are available, do not hesitate; App is more comprehensive, now it is updated version. Besides, it is with high quality comfortable and fashion strap.
<br /> Wide compatibility & Long-lasting battery--Full charge requires only 1-2 hours and the standby time can be up to 5-8 days with full power. App supports most smart phones with Bluetooth 4.0 or above. Support system: iOS 8.4 or above.
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<br />Main Features:
<br />- Bluetooth Synchronization
<br />With Bluetooth 4.0, this smart bracelet is available for smartphones with Bluetooth function
<br />- Professional Heart Rate Detection
<br />Whether you are resting or doing sports, detect your heart rate accurately
<br />- Intelligent Anti-lost
<br />Watch will send an alarm after leaving the mobile phone in a certain distance, no need to worry about losing your phone
<br />- Remote Camera
<br />Control your smartphone to take photos, catching every moment you want
<br />- Sport Monitor
<br />This smart bracelet can record steps, calories and distance, so you can know your sports data, adjust your exercise program and live a healthier life
<br />- Sleep Monitor
<br />Accurately monitor total effective sleeping time and motion time every night, helping you develop good living habits
<br />- Sedentary Reminder
<br />Develop scientific habits and effectively resist sub-health
<br />- APP supports languages: English, Japanese, Simplified Chinese, Traditional Chinese, French, German, Russian, Romanian
<br />- The watch not supports languages: Arabic, Thai
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<br />Function :
<br /> MAIN FUNCTION-Blood pressure blood oxygen monitor heart rate monitoring, pedometer, calories record, sleep quality monitoring, sync date and time, notifications, anti-lost alert, find Phone, sedentary alert, etc.
<br /> Lightweight 20g quite convenient even wear it sleeping.Responsive OLED Touch Screen - by short touch/long touch 5 seconds of the only key,you can easily read the steps counting, heart rate, calories, time, date, messages, etc.
<br /> Key Specifications - Bluetooth 4.0. Supports IOS 7.1 or above ( i Phone 4S,  5/5S/5C,   6/6S plus,   7/7S plus,etc.); Android 4.4 or above (Download APP from Apple Store or Google Play. Smart phone only, not for PC or Tablet).
<br /> High quality polymer rechargeable battery guarantees long battery life: about 7-10 days standby time/4 days operating time.Package Includes: Smart Bracelet * 1, Multi Language User's Manual *1, Charging cable *1 
<br /> Bracelet language-- Sync with your phone language OR English.Lightweisght and breathable design ,makes your life healthy and fashional,IP67 splash-proof and sweat-proof but no shower no diving with it.Stable and shackproof,you can claim for return in 6 month if there is any quality issue.
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<br />Packing list: packing box*1, bracelet *1, charging clamp *1, manual,*1
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<br />How to use : 
<br />1. Make your fittness tracker Power on  (How to power on it ? Please long-press botton 3-5 set)
<br />2.Open your Phone bluetooth , conntected bluetooth "K1***"
<br />3.Downlod APP , Please search "Wearfit 2" in your APP store and android market . and then downlod it 
<br />4.open to "wearfit app" , click "Mine"
<br />5.Click "personal data " , fill in your information 
<br />6.Click "Device management" , and the<p> <b><b><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-1-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-2-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-3-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-4-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-5-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-6-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-7-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-8-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-11-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-12-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-13-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-14-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-15-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-16-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-17-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-18-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59b116c3dbf1c91ac7fc39fe-19-large.jpg></b></b></p>