Letscom LCW01 User manual

Smart Watch
LCW01
User Manual
Thank you for purchasing our products. 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 purpose only. Actual product may
vary due to product firmware upgrade and app upgrade.

Table of Contents
English Version ....................................................................... 1
Deutsche Version .................................................................... 18
Versione Italianat .....................................................................38
Version Française ................................................................... 57
Versión Española .....................................................................77

English Version
Getting Started................................................................................................................................1
What’s in the Box......................................................................................................................1
What’s in This Document........................................................................................................ 1
Setting up Your Watch.................................................................................................................. 2
Charging Your Watch...............................................................................................................2
Disassembling / Assembling Your Watch............................................................................. 3
Wearing Your Watch...................................................................................................................... 4
Getting to Know Your Watch.......................................................................................................5
Button Controls......................................................................................................................... 5
Watch Interfaces.......................................................................................................................5
Function List....................................................................................................................................7
Using Your Watch...........................................................................................................................8
App Installation......................................................................................................................... 8
Account Registration................................................................................................................8
Pairing the Watch with Your Phone.......................................................................................9
App Interfaces.........................................................................................................................10
Tracking Sports.......................................................................................................................10
Tracking Daily Activity Data.................................................................................................. 11
Monitoring Heart Rate........................................................................................................... 11
Tracking Sleep........................................................................................................................12
Measuring Blood Oxygen Level...........................................................................................12
Controlling Phone Music.......................................................................................................12
Find Phone.............................................................................................................................. 12
More Functions.......................................................................................................................13
1. Call Notification.......................................................................................................... 13
2. Message Notification.................................................................................................13
3. Alarms..........................................................................................................................13
4. Sedentary Reminder................................................................................................. 13
Basic Specifications................................................................................................................... 14
FAQs................................................................................................................................................ 14
Important Safety Instructions...................................................................................................15

1
Getting Started
What’s in the Box
Smart watch Charging cable Quick start guide
(LCW01 with bands)
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 OnWear 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 LCW01.

2
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.
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

3
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.
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
Getting to Know Your Watch
Button Controls
Watch Interfaces
This is a touch screen; swipe the screen to go to different interfaces, tap to enter the
function, and swipe the screen to the right to return to the previous interface.
The home screen is the clock. On the clock:
UP button
Press to wake the screen, return to the home
screen or pause / end the sport.
Down button
Press to go to the sports interface, enter the sport
tracking mode, or pause / resume the sport.
Swipe up to see notifications.
Swipe down to go to quick settings (do not disturb, settings, find my
phone, watch information, screen brightness level).
Swipe left to see daily activity data, heart rate, and sleep data.
Swipe right to go to the function list.

6
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) Tap and hold the home screen.
2) Swipe left/right to choose one and tap to confirm.
Method 2 (in the app):
1) Open the OnWear app, go to the "Device" page → "Dial Gallery".
2) Select a watch face and tap to download or you tap on the upper right corner →
on the lower left corner to customize a dial by choosing a photo from your phone
album.

7
Function List
Records your daily activity data.
Tracks your exercise data in 8 sports modes. Choose the mode that you want
to start on the watch.
Check your exercise records.
Tracks your real-time heart rate automatically and continuously.
Check your daily sleep data.
Measure your blood oxygen level.
Control the music playing of your smartphone.
Weather forecast for the day. Weather data is obtained through your phone’s
network. Connect the watch to your phone to timely update weather data.
Use the stopwatch to make your exercise more standardized.
Customize your timer.
Check text messages or social media messages from your phone.
Use the watch to locate your phone by making your phone ring.
Some basic settings and information of the watch.

8
Using Your Watch
App Installation
Use the watch with our customized OnWear app. You can download OnWear from App
Store/Google Play or scan the QR code below to download.
Note:
OnWear app is only compatible with smartphones, not tablets or PCs.
Smart Phone System Requirements
● iOS 10.0 & higher
● Android 5.0 & higher
● Bluetooth 4.0 & higher
Account Registration
Please follow the instructions of the app to register a free account.

9
Pairing the Watch with Your Phone
Please pair the watch with your phone in the OnWear app, NOT in the Bluetooth
settings of your phone.
1. Enable the Bluetooth of your smartphone.
2. Open the OnWear app on your smartphone and go to the "Device" page.
3. Tap "Connect Device" → "Searching".
4. In the list of found devices, tap "LCW01" to pair.
Notes:
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 you unpair the watch with the app, the information on the watch will be reset and the
watch will be restarted. Please do not unpair the watch with the app 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.

10
App Interfaces
Home Exercise Device Profile
Tracking Sports
The watch tracks your exercise data in 8 sports modes.
Start a sport
Press the down button to go to the sports interface → Swipe the screen to select a sports
mode you want to start → Tap to start.
During sports
Swipe the screen up/down to flip through exercise data.
Press the down button to pause/resume the sport.
End the sport
1. Press the up/down button to pause the sport
2. Press the up button or tap on your watch to end.
Exercise data is displayed after the exercise has ended. Swipe up
the screen to flip through exercise data:

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Notes:
Data of exercises less than 1 minute and calories
burned less than 5 kcals, or less than 1 minute and
distance less than 100 meters will not be saved.
You can also view detailed data in the app (Go to the
"Exercise" page and choose the exercise type you just
ended).
Tracking Daily Activity Data
The watch tracks your all-day activity data,
including steps, calories burned and distance.
Monitoring Heart Rate
Tap "HR" in the function list to enter the heart
rate interface, the watch will automatically
measure your real-time heart rate. You can
swipe up the HR interface to view your all-day
heart rate data or view the data in the app.
Notes:
To monitor heart rate more accurately, wear the watch two fingers-width below the
wrist bone and a bit tighter than usual when you exercise. In addition, complete your
profile in the app.
Automatic heart rate monitoring is ON by default. You can disable/enable automatic
heart rate monitoring in the app ("Device" page → "Health Monitor").

12
Tracking Sleep
The watch automatically tracks your sleep
duration and consistency with a comprehensive
analysis of sleep quality data. Tap "Sleep" in the
function list so you can check your sleep records
and improve your routine.
Measuring Blood Oxygen Level
Before measuring, wear the watch two fingers-width below the wrist bone and a bit tighter
than usual.
1) Tap "SPO2" 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.
Note:
The measurement data may be incorrect due to movement or finger tapping. Please keep
still and measure again.
Controlling Phone Music
After the watch is connected to your phone, tap "Music" in the function
list and control the music playing on your phone.
Note:
You can only control the music player that’s running on your phone.
Find Phone
You can use the watch to locate your phone by making your phone ring when the distance
between your phone and the watch is within 10 meters (33 feet).
Tap "Find phone" in the function list to use the function.
Note:
The phone will not ring when in silent mode.

13
More Functions
1. Call Notification
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.
Notes:
Only when "Call Reminder" is enabled in the app ("Device" page), will calls be
notified.
When the do-not-disturb function is enabled in the app ("Device" page → "DND
Mode") or on the watch (quick settings → ), calls will not be notified on the watch
during the do-not-disturb period.
2. Message Notification
When messages (like Facebook, Twitter, and Instagram messages)
come in, the watch vibrates to alert you, and the screen displays the
message content.
Notes:
Only when "Notification Reminder" is enabled in the app ("Device" page →
"Notification Reminder"), will messages be notified.
When the do-not-disturb function is enabled in the app ("Device" page → "DND
Mode") or on the watch (quick settings → ), messages will not be notified on the
watch during the do-not-disturb period.
3. Alarms
1) Go to the "Device" page in the app and tap "Alarms".
2) Tap "+" to add an alarm.
3) Set the time and repeat days.
4) Tap "Save" to save your settings.
4. Sedentary Reminder
The watch vibrates to remind you to get up and move around when you have been sitting
too long ("Device" page → "Sedentary Reminder", enable the reminder and set the start
and end time.)

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Basic Specifications
Model No.: LCW01
Sync: Bluetooth 5.0
Screen: 1.28" color TFT
Battery Capacity: 300mAh
Working Voltage: 5V-500mA
Working Temperature: -10℃to 40℃
Weight: 1.66oz (47g)
Waterproof Rating: IP68
Working Time: about 10 days
FAQs
Failure to find the watch when pairing
1. Make sure your smartphone’s Bluetooth is enabled and your smartphone’s system
meets the requirements of Android 5.0 or higher, iOS 10.0 or higher, and Bluetooth
4.0 or higher.
2. Make sure the distance between your smartphone and the watch does not exceed
0.5 meters and that Bluetooth communication is also within range (10 meters max).
3. Make sure your watch has enough battery life. If there is still a problem after being
fully charged, please contact us.
Occasional failure to connect with Bluetooth
Reboot your smartphone or restart your smartphone’s Bluetooth.
Failure to receive message / calls notifications
Message / calls 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 OnWear app, and enable the Location and all
Notifications.
2. Enable your phone’s Bluetooth and go to the OnWear app to pair the watch.
3. Open the app. Go to the "Device" page, turn on "Call Reminder" and "Notification
Reminder".
4. Make sure the do-not-disturb function is not enabled in the app or the watch.

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The watch is disconnected from the OnWear 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 OnWear 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 OnWear app, and enable the
Location and Bluetooth.
2. Clear all running / background processes on your smartphone. Open the OnWear
app, go to the "Device" page, tap "LCW01", and then the watch will reconnect to your
smartphone and update data. You can also forget the device in your smartphone
settings, restart your smartphone and Bluetooth, and then re-pair the watch in the
app.
Important Safety Instructions
The device contains electrical equipment that may cause injury if not used properly. For
example, prolonged contact may contribute to skin allergies for some users. To reduce
irritation, please read the safety guidelines on the following pages to ensure proper use
and care.
Do not expose your device to liquid, moisture, humidity or rain while charging; do not
charge your device when it is wet, as this may result in electrical shock and injury.
Keep your device clean and dry. Do not use abrasive cleaners to clean your device.
Consult your doctor before use if you have any preexisting conditions that might be
affected by using this device.
Do not wear it too tight. If your device feels hot or warm, or if it causes any skin
irritation or other discomforts, please discontinue using your device and consult your
doctor.
Do not expose your watch to extremely high or low temperatures.
Do not leave your watch near open flames such as cooking stoves, candles, or
fireplaces.
This product is NOT a toy – never allow children or pets to play with this product.
Always store the product out of the reach of children. The devices themselves or the
many small parts they contain may cause choking if ingested.

16
Never try to abuse, crush, open, repair or disassemble this device. Doing so will void
the warranty and can result in a safety hazard.
If any parts of your product require replacement for any reason, including normal
wear and tear or breakage, please contact us.
Do not use your device in a sauna or steam room.
Dispose of this device, the device’s battery and its package in accordance with local
regulations.
Do not check any notifications, GPS, or any information on your device’s display
while driving or in other situations where distractions could cause injury or hazard.
Always be aware of your surroundings while exercising.
Battery Warnings
A lithium-ion battery is used in this device. If these guidelines are not followed, batteries
may experience a shortened life span or may cause fire, chemical burn, electrolyte
leakage, and/or injury.
Do NOT disassemble, modify, remanufacture, puncture or damage the device or
batteries.
Do NOT remove or attempt to remove the non-user-replaceable battery.
Do NOT expose the device or batteries to fire, explosion, or other hazards.
Health Warnings
If you have a pacemaker or other internal electronic device, consult your physician
before using a heart rate monitor.
The optical wrist heart rate monitor emits green light and flashes occasionally.
Consult your physician if you have epilepsy or are sensitive to flashing lights.
Always consult your physician before beginning or modifying any exercise program.
The device, accessories, heart rate monitor, blood oxygen level measurement and
related data are intended to be used only for general fitness and wellness purposes,
not for medical purposes, and are not intended to diagnose, monitor, treat, cure, or
prevent any disease or condition.
The heart rate and blood oxygen level readings are for reference only, and no
responsibility is assumed for the consequences of any false readings.
While the optical wrist heart rate monitor technology typically provides the best
estimate of a user's heart rate, there are inherent limitations with the technology that
may cause some of the heart rate readings to be inaccurate under certain
circumstances, including the user's physical characteristics, fit of the device, and type
and intensity of activity.
The smart watch relies on sensors that track your movements and other metrics. The
data and information provided by these devices are intended to be a close estimation
of your activity and metrics tracked, but may not be completely accurate, including
step, sleep, distance, heart rate, blood oxygen, stress and calorie data.
If you have eczema, allergies or asthma, you may be more likely to experience skin

17
irritation or allergies from a wearable device.
Whether you have the conditions above or not, if you start to experience any
discomfort or skin irritation on your wrist, remove your device. If symptoms persist
longer than 2-3 days of not using your device, contact your doctor.
If you sweat for more than two hours while wearing your watch, be sure to clean and
dry your band and your wrist to avoid skin irritation.
Prolonged rubbing and pressure may irritate the skin, so give your wrist a break by
removing the band for an hour after extended wear.
Maintenance
Regularly clean your wrist and the smart watch, especially after sweating during
exercise or being exposed to substances such as soap or detergent which may
adhere to the internal side of the watch.
Do NOT wash the watch with household cleanser. Please use soapless detergent,
rinse thoroughly and wipe with a soft towel or napkin.
While the watch is water resistant, wearing a wet band is not good for your skin.
If your bands get wet—for example after sweating or showering—clean and dry them
thoroughly before putting them back on your wrist.
Be sure your skin is dry before you put your bands back on.
Do not bring your device into contact with any sharp objects, as this could cause
scratches and other damage.
For light-colored arm bands, minimize direct contact with dark-colored clothing, as
color transfer can occur.