User's Manual
Table Of Contents
- Important Safety Instructions
- Battery Warnings
- Health Warnings
- Maintenance
- Getting Started What’s in the box
- What’s in this document
- Setting up Your Watch Charging your watch
- Disassembling / Assembling Your Watch Disassembly
- Assembly
- Wearing Your Watch
- Using Your Watch App Installation
- Note:
- Smart Phone System Requirements
- Account Registration and Login
- Pairing the Watch with Your Phone
- Notes:
- App Interfaces
- Watch Interfaces
- Function List
- 1)Tracking Sports
- Start a sport
- Set target
- GPS connecting (Only for outdoor running / outdoor
- During sports
- End the sport
- Notes:
- 2)Recording Training Data
- 3)Monitoring Heart Rate
- Note:
- 4)Measuring Blood Oxygen Level
- 5)Tracking Daily Activity Data
- 6)Tracking Sleep
- 7)Breathing Guide
- 8)Setting Alarms Method 1:
- Note:
- Method 2:
- 9)Controlling Phone Music
- Note:
- 10)More Functions
- Notes:
- •Message Notification
- Notes:
- •Sedentary Reminder
- •Stopwatch
- •Timer
- FAQs
- Occasional failure to connect with Bluetooth
- Failure to receive SMS / calls notifications
- The watch is disconnected from the Letsfit app on
- To reconnect the watch to your smartphone, please
- Blood Oxygen Level Measurement Accuracy
- FCC Statement
Bluetooth connection range is 10 meters and can easily be reduced by walls, furniture,
etc.)
2.
The Letsfit app is closed on the phone. (This can occur automatically under certain
circumstances.)
To reconnect the watch to your smartphone, please kindly take the following steps:
1.
Go to your smartphone system Settings, find the Letsfit app, and enable the Location and
Bluetooth.
2.
Clear all running / background processes on your smartphone. Open the Letsfit app, go to the
"Settings" page, tap "IW2, IW3", and then the watch will reconnect to your smartphone and
update data. You can also restart your smartphone and Bluetooth, then re-pair the watch in the
app.
Blood Oxygen Level Measurement Accuracy
The Blood oxygen level will be affected by factors such as motion, watch placement on the wrist,
skin temperature and skin perfusion. These factors will cause fluctuations in blood oxygen
measurements.
For a single measurement on the watch, please wear the watch a finger-width below the wrist
bone, snug but comfortable on your wrist. When measuring, stay still and make sure your wrist is
flat with the watch facing up. If you are sitting, you can rest your arm on a table with the watch
facing up.
The smart watch blood oxygen sensor isn’t a medical device and won’t be able to diagnose or
monitor any medical conditions. If there is a problem with the measurement, we recommend you
consult your doctor.