D21 Smart Sports Bluetooth Watch Call Reminder Sleep Monitoring Heart Rate Monitor

Price:
$58.67

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The product you want to order is in stock. All orders are delivered within 24 hours after they are placed.
Main Features:
nRF51822 chip and Bluetooth 4.0 technology: Adopt nRF51822 chip and Bluetooth 4.0 technology that it can quickly and efficiently meet the needs of your life.
Heart rate monitor: Give you the accurate real-time feedback, let you keep fit easily.
Sleep monitor / Sedentary reminder / Pedometer: Take care of your health, monitor your sleep, remind you to have a rest and track your sports.
Distance measurement: Measure your daily walking distance precisely.
Calorie consumption management: Calculate the consumption of calorie, record the daily burned calorie.
Call / SMS reminder: When a call or message is coming, you can check it without taking out of your mobile phone.
Specification:
Hardware
Built-in chip type NRF51822
Bluetooth version Bluetooth 4.0
Waterproof Yes
IP rating Life water resistance
Functions
Bluetooth calling Phone call reminder
Messaging Message reminder
Health tracker Heart rate monitor,Pedometer,Sedentary reminder,Sleep monitor
Alert type Ring,Vibration
Other function Alarm
Screen
Screen OLED
Screen resolution 64 x 48
Screen size 0.66 inch
Operating mode Touch Screen
Battery
Type of battery Polymer battery
Battery Capacty 80mAh
Charging time About 60mins
Standby time 3-4 days
General
People Female table,Male table
Dial and Band
Shape of the dial Rectangle
Case material Stainless Steel
Band material Silicone
Features
Compatible OS Android,IOS
Compatability Android 4.3, iOS 7.0 and above system
Language English,Simplified Chinese,Traditional Chinese
Available color Black,Pink,Purple,White
Weight and Size
Dial size 4.53 x 2.40 x 1.23 cm / 1.78 x 0.94 x 0.48 inches
Band size 12.50 x 0.95 cm / 4.92 x 0.37 inches
Product size (L x W x H) 12.50 x 2.40 x 1.23 cm / 4.92 x 0.94 x 0.48 inches
Package size (L x W x H) 15.40 x 8.80 x 3.10 cm / 6.06 x 3.46 x 1.22 inches
Product weight 0.030 kg
Package weight 0.130 kg
Package Contents
Package Contents 1 x Smart Watch, 1 x Chinese and English Manual, 1 x Charging Clip

FAQ for Smart Watch and Wristband
1. Q: I can’t charge my watch / bracelet and it doesn’t power on, what should I do?
A: If this is the first time you’ve charged your watch / bracelet, please use the adapter to power it, charge it for more than 3 hours, then press the button to start it;
If you have not used the watch / bracelet for a long time without charging it, the battery would have opened the UVP function. In this situation, you need to activate the battery before using. (You can go to the phone repair shop to activate the battery).

2. Q: Why can’t I connect with Bluetooth?
A: 1. If the phone's Bluetooth version is lower than the watch's / bracelet’s, they will
not be able to pair;
2. If the phone's Bluetooth version is equal to or higher than the watch's / bracelet’s, but is initially unable to pair, then you need to clear the Bluetooth connection history on the phone, scan and re-connect again.

3. Q: The watch / bracelet icon shows that it has paired over Bluetooth, however the APP cannot sync data. How do I resolve this?
A: Generally it is caused by the Bluetooth of the phone. Please close the APP first, restart the Bluetooth connection and re-pair the two devices. If the above step does not work, please restart your phone and try to pair the devices again.

4. Q: Why does my watch / bracelet frequently lose connection with my phone?
A: Please check if your phone or other security software has set the APP as a trusted APP or not. This is required to pair the two devices. If it hasn’t, please set it as trusted APP and try again.

5. Q: Why am I unable to connect with the APP?
A: Please making sure the OS of your phone is within the range that the smart watch / bracelet supports.

The product you want to order is in stock. All orders are delivered within 24 hours after they are placed.