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A:The deviation between the measurement value of the watch and the sphygmomanometer is determined by a variety of factors. The measurement site of the sphygmomanometer is in the radial artery, and the measurement site of the watch is the two main branches of the arteriole. Normaly, the aortic blood pressure measurement and the arteriole Blood pressure measurements will vary by three to forty; if you use a watch and a sphygmomanometer to measure at the same time, because the blood ?ows in the artery in the direction of the centrifuge, the sphygmomanometer measures the straps so that the lower part of your elbow is under pressure. Temporary blood cannot ?ow smoothly to the branch of the artery below, and the vascular tension is increased, which will make the upper and lower blood pressure measurement values more biased.
Q:Why can't the watch receive the message push?
A:Android phone settings1. Con?rm that the message push switch is enabled on the mobile client.2. The con?rmation message can be displayed normally in the mobile phone noti?cation bar. The watch message push is pushed by reading the mobile phone noti?cation bar message; if there is no message in the mobile phone noti?cation bar, the watch will not be able to receive the push(need to ?nd the noti?cation setting in the phone settings, open WeChat, QQ phone, SMS, noti?cation button of mobile client)3. Open the auxiliary function settings of the wristband client(see the auxiliary function in the settings on the phone, and open the auxiliary function settings of the wristband client)
Apple phone settings:1. Con?rm that the message push switch is enabled on the mobile client.2. the con?rmation message can be displayed normally in the mobile phone noti?cation bar(need to ?nd the noti?cation settings in the phone settings, open WeChat, QQ phone, SMS, mobile phone client noti?cation switch)
Q:Why does the pedometer not count steps when I have already started walking?
A:To reduce errors, smart watch usually sets an initial value of 10, it will count steps when we walk more than 10 steps. The APP will show the real walking steps and start counting from step 10.
Q:What application is used when connecting to a smart phone?
A:App is "Da Fit",The app is designed by the supplier. You can scan the QR code on the package or manual to download it when you get the item.
Q:Why the device cannot boot or start up properly?
A:Please charge your new device for at least 10 minutes or more before the first usage, this ensures normal device boot and optimal operation. For devices with removable batteries, ensure they are properly installed before charging.
Q: Can not find device when pairing device?
A:Please make sure the distance between phone and device less than 0.5m
Please make sure the device is not under low battey.if there is still problem after 1.5hours charging,Please cantact us.
Q:Can not connect the devicewith app?
A:Some smart phone bluetooth service will be abnormal when reboot.Please reboot the smart phone for pairing device.
Q:Why the android mobile disconnect?
A:Android mobile phone system memory management will be forced to turn off the background app,you need to turn off the power saving mode or pull the app into the ayatem housekeeping green background inside,app will not be forced to close.app must be running in the background,bluetooth will not automatically disconnect.
Q: Why couldn’t I connect the Bluetooth?
A： 1. Please download the app firstly
2. Search Bluetooth name on your APP and then connect it.
3. You can see request to connect on the phone, click “pair.
If you had connected the Bluetooth before, please clear all your phone's Bluetooth devices.
4. App Name: Da Fit.
Q：Is the watch waterproof?
A：K55 is splash-proof and sweat-proof, so it is ok while you are doing sports . But you can’t swim with it.
(please note: it does not support the brewing hot water, hot bath, and water vapor. Please avoid using and storing the device at the place of high temperature & high humidity.)
Although the bracelet can monitor your heart rate, it cannot be used for any medical purpose,it is only to help people live a healthier life.All measurements results are for reference only.They are based on seientific algorithms and sensors.So please don't compare them to medical devices,we appreciate your understanding.