Letsfit IW1 User manual

Smart Watch
User Manual
IW1 Lite
Thank you for purchasing our product. This manual addresses the safety guidelines,
warranty, and operating instructions. Please review this manual thoroughly before
operating your device.
All pictures in this manual are for illustration purposes only. Actual product may
vary due to product firmware upgrade and app upgrade.

CONTENTS
Getting Started...............................................................................................1
What’s in the Box..........................................................................................................1
What’s in this Document...............................................................................................1
Setting up Your Watch...................................................................................1
Charging Your Watch....................................................................................................1
Disassembling / Assembling Your Watch .....................................................................2
Disassembly ..........................................................................................................2
Assembly...............................................................................................................3
Wearing Your Watch ......................................................................................4
Using Your Watch ..........................................................................................5
App Installation .............................................................................................................5
Account Registration and Login ...................................................................................6
Pairing the Watch with Your Phone..............................................................................6
App Interfaces ..............................................................................................................8
Getting to Know Your Watch.........................................................................9
Basic Operation ............................................................................................................9
Watch Interfaces...........................................................................................................9
Function Introduction..................................................................................11
1. Tracking Sports ...................................................................................................12
2. Monitoring Heart Rate.........................................................................................13
3. Tracking Sleep.....................................................................................................13
4. Measuring Blood Oxygen Level..........................................................................14
5. Setting Alarms .....................................................................................................14
6. Controlling Phone Music .....................................................................................14
7. More Functions....................................................................................................15
7.1 Call Notification .............................................................................................15
7.2 Message Notification.....................................................................................15
7.3 Sedentary Reminder .....................................................................................16
7.4 Find My Phone ..............................................................................................16
Basic Specifications ....................................................................................16
FAQs .............................................................................................................17
Warranty .......................................................................................................19
Important Safety Instructions .....................................................................19

1
Getting Started
What’s in the Box
Smart watch
(IW1 Lite with bands)
Charging cable
Quick start guide
What’s in this Document
This manual gets you started quickly with setting up your watch. Setup ensures that your
watch can synchronize its data with the Fitdock app, where you can get detailed
information on your stats, view historical trends, log sleep, and more. As soon as setup is
complete, you’re ready to start moving. The remainder of the manual walks you through
every function on your IW1 Lite.
Setting up Your Watch
Charging Your Watch
Please fully charge your watch before initial use.
1. Insert the USB plug of the charging cable into the USB port on your computer or a
UL-certified USB wall charger.
2. Hold the other end of the charging cable near the port on the back of the watch until
it attaches magnetically.

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3. Make sure the pins on the charging cable lock securely with the port. The connection
is secure when the watch vibrates and the battery icon with percent charged appears
on the screen.
When the watch shows that the battery is low,
connect the watch to a USB port with 5V-
500mA.
While the watch charges, there is a battery
progress circle on the screen and you can
check the battery level at any time.
4. Remove the watch from the power supply once fully charged.
USB charger requirement: DC USB port (5V-500mA)
Charging time: Approximately 2 hours
Disassembling / Assembling Your Watch
Disassembly
1. To remove the wristbands, turn over the watch and find the quick-release lever.
2. While pressing the quick-release lever inward, gently pull the wristband away from
the watch to release it.

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3. Repeat on the other side.
Assembly
1. To reattach the wristbands, slide the pin (the side opposite the quick-release lever)
into the notch on the watch. Attach the wristband with the clasp to the top of the
watch.
2. While pressing the quick-release lever inward, slide the other end of the wristband
into place.
3. When both ends of the pin are inserted, release the quick-release lever.

4
Wearing Your Watch
All-day Wear and Exercise
For all-day wear when you’re not exercising, wear the device on your wrist horizontally, a
finger’s width below your wrist bone and lying flat, the same way you would put on a
watch.
For optimized heart rate tracking, keep these tips in mind:
1. Experiment with wearing the watch higher on your wrist during exercise. Because
the blood flow in your arm increases the farther up you go, moving the watch up a
couple of inches can improve the heart rate signal. Also, many exercises such as
bike riding or weight lifting require you to bend your wrist frequently, which is more
likely to interfere with the heart rate signal if the watch is lower on your wrist.
2. Do not wear your watch too tight. A tight band restricts blood flow, potentially
affecting the heart rate signal. This being said, the watch should also be slightly
tighter (snug but not constricting) during exercise than during all-day wear.

5
Using Your Watch
App Installation
Use the watch with our customized Fitdock app. You can download Fitdock from Apple
Store / Google Play or scan the QR codes below to download.
Note:
The Fitdock app is only compatible with smartphones, not tablets or PCs.
Smart Phone System Requirements
iOS 11.0 & higher
Android 6.0 & higher
Bluetooth 4.0 & higher

6
Account Registration and Login
Please register an account with a valid email address. After registration, check your email
box to complete email verification, and then tap "Verified" to log in.
Pairing the Watch with Your Phone
Please pair the watch with your phone in the Fitdock app, NOT in the Bluetooth
settings of your phone.
1. Enable the Bluetooth of your smartphone.
2. Open the Fitdock app on your smartphone and go to the "Device" page, tap "Pair
device".
3. Tap " ", and your smartphone starts scanning.
4. Use the Fitdock app to scan the QR code displayed on your watch to connect the
watch to your smartphone.

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Notes:
You can also search this device in the app to pair (Go to the "Device" page → "Pair
device" → "IW1 Lite").
Once the watch is connected to your app, the watch will automatically search and
reconnect itself if the connection is lost or when Bluetooth is restarted after manual
disconnection.
If the watch is unbound from the app, the information on the watch will be reset and
the watch will be restarted. Please do not unbind the connection unless there is an
issue that will require a reset.
The watch can only pair with one smartphone at a time. When pairing, please ensure
the watch and your smartphone is within 0.5 meters distance.

8
App Interfaces
Summary
Today’s data
Device
After the watch is connected to your
phone, you can customize watch face /
call / message / sleep alarm /
sedentary alert / heart rate
notifications, etc.

9
Getting to Know Your Watch
Basic Operation
Turn on / off the watch:
Press and hold the function button for 3
seconds.
Wake a dimmed screen:
Press the function button or turn your wrist
towards you.
Return to the previous interface:
Swipe the screen to the right.
Return to the home screen:
Press the function button.
Watch Interfaces
This is a touch screen; swipe the screen to go to different interfaces, and tap to enter the
function.
The home screen is the clock. On the clock:
Swipe up to view daily steps, daily distance, daily calories burned and weekly activity
data.
Swipe down to see notifications.
Swipe left to the function list, including sports mode, heart rate, sleep, blood oxygen,
records, music control, alarm, stopwatch and settings.
Swipe right to see the quick settings bar (auto heart rate monitor, screen brightness
level, do not disturb, find my phone).

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(fig. 1)
After the watch is paired with your phone, the home screen will display the time and date.
You can customize the home screen by following the steps below:
Method 1 (on the watch):
1. Hold the home screen.
2. Swipe the screen to choose a watch face and tap to confirm.
Method 2 (in the app):
Open the Fitdock app, go to the "Device" page → "Watch Faces". You can select a
watch face from "My Dials" or download a watch face from "Gallery".

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Function Introduction
Tracks your exercise data in up
to 8 sports modes. Choose the
mode that you want to start on
the watch.
Tracks your real-time heart rate
automatically and continuously.
Check your daily sleep data.
Measure your blood oxygen level.
Records your daily activity data.
Control the music playing of your
smartphone.
Set different types of alarms in
the app to make the watch
vibrate to remind you.
Use the stopwatch to make your
exercise more standardized.
Some basic settings and
information of the watch.

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1. Tracking Sports
The watch tracks your exercise data in up to 8 sports modes.
Start a sport
Tap "Sports Mode" → Swipe the screen to
select a sports mode you want to start.
During sports
Swipe the screen left or right to flip through
exercise data.
Press the function button to pause /
resume the sport.
Swipe the screen to the far left so you can
control the music playing on your phone.
End the sport
Hold the function button and tap to end the sport.
Exercise data is displayed after the exercise has ended. Swipe up the screen to flip
through exercise data:
Notes:
After ending an exercise, you can view detailed data and graphs in the app (Go to
the "Summary" page, swipe down the page to synchronize data, and tap the
exercise you just ended).
Data of exercises less than one minute will not be saved.

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2. Monitoring Heart Rate
Tap to measure your heart rate. After entering the heart rate interface, the watch
tracks your real-time heart rate automatically and continuously. You can view your
detailed heart rate data on the watch screen or in the app.
Notes:
To monitor your heart rate more accurately, wear the watch two fingers wide below
your wrist bone and wear it tighter than usual. In addition, complete your profile in
the app.
If the auto heart rate monitor is disabled on the watch, the watch will not track your
heart rate continuously.
Heart Rate Notifications: The watch will remind you when you exceed your maximum
heart rate while you appear to have been inactive. You can enable or disable heart rate
notifications in the app ("Device" page → "Heart Rate Notifications").
3. Tracking Sleep
The watch automatically tracks your sleep duration and consistency with a
comprehensive analysis of sleep quality data. Tap in the function list to check your
sleep records and improve your routine.

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4. Measuring Blood Oxygen Level
Before measuring, wear the watch two fingers below the wrist bone and a bit tighter than
usual.
1. Tap to enter the blood oxygen level detection mode.
2. When measuring, keep your arm flush with your chest and the watch screen facing
up. Keep your arm still to ensure the accuracy of the data.
5. Setting Alarms
1. Go to the "Device" page in the Fitdock app.
2. Tap "Alarm" to enter the alarm setting interface.
3. Tap "Add" to add an alarm.
4. Set the alarm time and repeat time.
5. Tap "Confirm" to save your settings.
You can enable / disable the alarm on your watch (Tap "Alarm" on the watch and then
tap to turn on / off the alarm you set.)
6. Controlling Phone Music
After the watch is connected to your phone, tap on the watch to enter the function
and control the music playing on your phone.
Alarm is enabled
Alarm is disabled

15
Note:
You can only control the music player that’s running on your phone.
7. More Functions
7.1 Call Notification
Notes:
Only when "Notification Alerts" is enabled in the app ("Device" page → "Notification
Alerts", turn on "Notification Alerts"), will calls be notified.
When the "Do not disturb" function is enabled on the watch (Quick settings bar → ),
calls will not be notified on the watch during the do-not-disturb period.
7.2 Message Notification
Notes:
Only when "Notification Alerts" is enabled in the app ("Device" page → "Notification
Alerts", turn on "Notification alerts"), will messages be notified.
When the "Do not disturb" function is enabled on the watch (Quick settings bar → ),
messages will not be notified on the watch during the do-not-disturb period.
When there is an incoming call, the watch vibrates to
alert you, and the screen displays the caller ID.
Tap on the watch screen to reject the call.
When messages (like Facebook, Twitter, and
Instagram messages) come in, the watch vibrates
to alert you, and the screen displays the message
content.

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7.3 Sedentary Reminder
The watch vibrates to remind you to get up and move around when you have been sitting
too long ("Device" page → "Sedentary Alert", enable the movement reminders function
and set the remind interval.)
7.4Find My Phone
When the watch is connected to your phone, you can use the watch to locate your phone
by making your phone vibrate. Tap in the quick settings of the watch to use the
function.
Basic Specifications
Model No.: IW1 Lite
Sync: Bluetooth 5.0
Screen: 1.4" TFT LCD
Battery Capacity: 180mAh
Working Voltage: 5V-500mA
Working Temperature: -10℃ to 40℃
Weight: 1.2oz (34g)
Waterproof Rating: IP68
Working Time: about 7 days

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FAQs
Failure to re-pair the watch with the Fitdock app on your
smartphone
1. Swipe the screen of watch to enter settings mode. Tap "Settings" → "System settings"
→ "Reset". The information on the watch will be reset and the watch will be restarted.
2. Use the Fitdock app to scan the QR code displayed on your watch to pair.
If you still fail to connect the watch to the app, please kindly take the following steps:
1. Make sure your smartphone’s Bluetooth is enabled and make sure the watch is not
connected to other smartphones.
2. Search this device in the app to pair (Go to the "Device" page → "Pair device" → "IW1
Lite").
3. Make sure the distance between your smartphone and the watch does not exceed 0.5
meters and keep the watch screen always on when pairing.
Occasional failure to connect with Bluetooth
Reboot your smartphone or restart your smartphone’s Bluetooth.
Failure to receive SMS / calls notifications
Calls / SMS notification function works when the watch connects to your smartphone via the
app. Please kindly refer to the following tips:
1. Go to your smartphone Settings, find the Fitdock app, enable the Location and all
Notifications.
2. Enable your phone’s Bluetooth and go to the Fitdock app to pair the watch.
3. Open the app. Go to the "Device" page → "Notification Alerts", turn on "Notification
Alerts".
4. Make sure the "Do Not Disturb" function is not enabled on the watch.
The watch is disconnected from the Fitdock app on your
smartphone
The watch will disconnect from your smartphone in the following cases:
1. Smartphone Bluetooth is off or exceeds the Bluetooth connection range (the maximum
Bluetooth connection range is 10 meters and can easily be reduced by walls, furniture,
etc.)
2. The Fitdock 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:

18
1. Restart the Bluetooth of your phone.
2. Clear all running / background processes on your smartphone and restart the Fitdock
app. Then the watch will reconnect to your phone automatically.
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 two fingers 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.