
W303D User Manual
1.How to start?
Download and install the APP of W303.
2. Connecting
Turn on your Bluetooth4.0 function on your mobile phone. Launch the app
andlog in, Click on the sidebar and select the connecting iconto discover the
band, then connect to it.

3. Use your band
a. Once connected successfully,time and data will be in synchronism with APP
client automatically; when disconnected, the time and activity data can be
showed on the screen independently.
b. You can light the band by double-clickingthescreen, and thetime, data, steps
and Calories will scroll display.
c. When the phone has a call or SMS messages, the band will remind you by
vibrating (some models).
4. Charging
When the battery on the screen or APP is in low power alarm, band indicates
that the power is low, please charge to band immediately.

FCC Caution.
§ 15.19 Labelling requirements.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
§ 15.21 Information to user.
Any Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
§ 15.105 Information to the user.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
* RF warning for Portable device:
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable
exposure condition without restriction.