Altitude monitoring,can record the camping site or safe location, to prevent down the mountain when lost or missed the camping site; Temperature monitoring:with the increase of height, the farther away from the ground, the air is less heat, the air temperature is gradually reduced, remind to keep warm ; Atmospheric pressure monitoring:can predict the weather according to the changing tendency of the ambient air pressure, can grasp the pressure change trend and predict the weather.</br>It can be support Bluetooth 4.0, suitable for Android 4.3 or higher devices and iOS 7 or above devices.</br>Walking, running, mountain climbing, power sports, ball games, aerobic exercise,this is very perfect for these.Support above Online heart rate data measurement,this is a best gift for you and your family .</br>OLED screen,show time date,calls vibration to remind,it also have function such as step monitor, distance, calorie consume;can test Static and dynamic heart rate,when you are exercise, can reflect your exercise intensity and physical functioning,At any time ,according to the body's response to adjust the exercise program.</br>Fashion design and high quality , we can give you full refund once you are not satisfied, 1 year warranty.</br></br>Product Description</br></br>Multi-Functions: Altitude monitor,Atmospheric pressure monitor,temperature monitor,heart rate monitor ,sports pedometer monitor ,calories ,distance,sleeping monitor , Sedentary reminder,drink water reminder,call reminder,alarm clock , data share ,Remote camera ,anti-loss, professional waterproof.</br> Specification:</br> Heart rate monitor</br> Battery:80mah Lithium polymer</br> Screen: 0.66 OLED Screen</br> Size:Length 200~250 ; Width 18mm</br> Package size:85*125*40mm</br> Material:TPSIV watch strap+ PC watch shell +Aluminum alloy buckle.</br> Standby time:15-20days</br> Charging model:charging clip</br> Waterproof grade: IP67</br> Weight: N.W 22g ; W.G 100g</br> Support device: Above IOS7.0 ;above Android4.3 ;Bluetooth4.0</br> Package including:</br> 1* bracelet</br> 1* manuel</br> 1* charging clip</br></br><br/>http://www.amazon.com/gp/product/B01N6NXMYQ