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Smart Band Heart Rate Monitor Smart Bracelet Wristband Fitness Tracker Wireless Activity Wristband Sport Wristband Sleep Monitor for iPhone Android Phone DF23

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Product prices and availability are accurate as of 2019-11-10 18:12:20 UTC and are subject to change. Any price and availability information displayed on https://www.amazon.com/ at the time of purchase will apply to the purchase of this product.
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Manufacturer Description

Note:
Please stop using it when any discomfort symptoms happen. If use substandard charging power supply, will shorten the battery life, and even damage the battery.
We reserve the right to modify the user manual without any notification. It is normal condition if some functions differs from different app versions.
We reserve all the right for the final explanation.
It applies to the following models: iPhone 4S/5/5C/5S/6/6P IOS8.0 and above, Android 4.3 and Bluetooth 4.0 version.
Descriptions: The bracelet shell adopts the aluminum alloy, which is with resistance fall. There is no worry for you when your bracelet fall down on the hard ground. It may be the servant even a doctor for you to monitor your heart rate and tell you how healthy you are.
Are you still worried about the bracelet or watch would fail to resist water?
Are you still worried about it would stop working when you swim or lay at the water?
Are you still worried about it would be rust when it touch water?
The bracelet can prevent water from watering inside deeply. It enjoys the function that it can monitor how much calories you consume and how many loop you swim. It would be the best one to monitor your sporting and sleeping. It would warn you that when you should stand up when you sit for a long time.
Are you still worried that you would miss your bus early in the morning?
Are you still worried that you would not get up punctually and your boss would punish you?
The bracelet would be the best clock to wake you up in the morning. You would not miss your bus and late at working time.

Product Features

1.Chip: nRF51822(Cortex M0 16Hz); Ram:256k 2.Acceleration sensor:three-axis acceleration sensor 3.Heart Rate sensor: static green light sensor 4.Display: OLED 0.91" 128*64Dots; Key type: touch key 5.Vibration motor: cylindrical vibration motor; Gesture: Palming bright screen; Battery: 80mAh