EW4
Smart Watch
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.
Mon
CONTENTS
01 Getting Started
What’s in the Box
What’s in this Document
01 Setting up Your Watch
Charging Your Watch
Disassembling / Assembling Your Watch
04 Wearing Your Watch
05 Using Your Watch
App Installation
Account Registration and Login
Pairing the Watch with Your Phone
App Interfaces
11 Getting to Know Your Watch
Button Controls
Watch Interfaces
13 Function List
1. Tracking Sports
2. Tracking Daily Activity Data
3. Monitoring Heart Rate
4. Tracking Sleep
5. Measuring Blood Oxygen Level
6. Monitoring Stress Level
7. Breath Training
8. Setting Alarms
9. Controlling Phone Music
10. More Functions
10.1 Call Notification
10.2 Message Notification
10.3 Sedentary Reminder
20 Basic Specifications
21 FAQs
23 Warranty
23 Important Safety Instructions
- 1 -
What’s in the Box
Getting Started
Setting up Your Watch
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
Letsfit 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 EW4.
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.
Charging cableSmart watch
(EW4 with bands)
Quick start guide
Quick Start
Guide
- 2 -
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 bar 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.
All-day Wear and Exercise
Wearing Your Watch
- 4 -
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.
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Using Your Watch
App Installation
Use the watch with our customized Letsfit app. You can
download Letsfit from App Store / Google Play or scan the QR
codes below to download.
AndroidiOS
Letsfit
Note:
Letsfit app is only compatible with smartphones, not tablets
or PCs.
● iOS 11.0 & higher
● Android 6.0 & higher
● Bluetooth 4.0 & higher
Smart Phone System Requirements
- 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.
15
:
05
15
:
05
Pair device
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Please pair the watch with your phone in the Letsfit app,
NOT in the Bluetooth settings of your phone.
1. Enable the Bluetooth of your smartphone.
2. Open the Letsfit app on your smartphone and go to the
"Device" page, tap "+ Pair new device".
3. Tap , and your smartphone starts scanning.
4. Use the Letsfit app to scan the QR code on the watch screen.
5. Tap "√" on the watch to connect the watch to your smartphone.
Pair the watch with your
smartphone in the Letsfit app
Do NOT pair the watch
with your smartphone
in your phone’s
Bluetooth settings
iOS Android
Pairing the Watch with Your Phone
- 8 -
Notes:
● You can also search this device in the app to pair (Go to the
"Device" page → "+ Pair new device" → tap "EW4" under
"Search Devices").
● 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.
EW4
Scan QR Code
15
:
05
- 9 -
App Interfaces
Summary
Swipe down
to sync data.
Daily Workout
Minutes
Daily Steps
Daily Target Value
Daily Active Hours
- 10 -
Training
When you start a sport mode on
your watch, detailed data and
graphs will be displayed here
after the exercise is over (swipe
down to sync data first).
Tap "EW4", you can
customize call / message /
alarm alert or set other
parameters.
Device
-11 -
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:
● Swipe down to see notifications.
● Swipe up to go to the status bar (brightness control, do not
disturb, settings, wrist sense).
● Swipe left/right to switch among function shortcuts (daily activity
data, heart rate, stress monitoring, sleep)
Up button
● Press to wake the screen, go to the
function list, return to the home
screen, or pause/resume the sport.
● Hold to end the sport mode or power
on/off the watch.
Down button
● Press to go to the Training interface,
enter the sport tracking mode, or flip
through exercise data during sports.
Mon
- 12 -
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 Letsfit app, go to the "Settings" page → "EW4" → tap
"Watch Faces".
2) Select a watch face or choose a photo in your phone album to
display on the home screen.
3) Tap "Confirm" to finish setting.
Notifications
Status Bar
Daily Activity Data
Heart Rate
Sleep
Stress Monitoring
Sl
ee
p
Sleep du
r
ation
08
h
00
min
22:30
06:30
Heart rate
88
H
130
Max
Min
50
50
95
140
0
6
12
18
24
Str
e
ss
56
88
Max
Min
12
H
33
66
99
0
6
12
18
24
Mon
fig. 1
Mon
- 13 -
Function List
Tracks your exercise
data in up to 14 sports
modes. Choose the
mode that you want to
start on the watch.
Records your daily
training data.
Use the stopwatch
to make your
exercise more
standardized.
Tracks your
real-time heart rate
automatically and
continuously.
Customize your
timer.
Guides your
breathing for a
relaxation.
Check your daily
sleep data.
Set alarms to have
the watch vibrates
to wake you up,
take pills, and
more.
Measure your blood
oxygen level.
Monitors your daily
stress and generates
a stress score based
on your heart rate
variability.
Control the music
playing of your
smartphone.
Some basic settings
and information of
the watch.
O
2
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1. Tracking Sports
The watch tracks your exercise data in up to 14 sports modes.
Start a sport
Press the down button to go to the Training interface →
Swipe the screen to select a sports mode you want to start.
Set a target
Before beginning an exercise, you can set
training goals such as distance, duration,
calories burned, etc.
Tap beside the sport mode and set
your target.
Add a virtual running competitor
In the Outdoor run mode, you can set a virtual running competitor
and the competitor’s running pace, and check the gap between
yourself and the competitor in real time to improve your running
performance more effectively.
Use your phone’s GPS to track sports
(Only for Outdoor Run / Outdoor Walk / Outdoor Cycle / Hiking modes)
You can use the GPS of your phone to track your pace & distance
during these sports while mapping out your exercise on your phone
(take your phone with you to use the GPS function during exercise).
1) Tap "Training" in the function list.
2) Tap beside "Outdoor run".
3) Tap "Smart competitor" and enable the
function.
4) Tap "Target pace" → "Customise" to set the
competitor’s pace.
5) Tap "√" to confirm.
6) Return to the training interface and tap "Outdoor Run" to
start your running with the competitor. You can view the
running pace of the competitor and you on the watch during
the exercise.
- 15 -
Note:
GPS is required for calculating your distance in Outdoor Cycle.
Please wait for successful GPS positioning before start.
End the sport
Hold the up button until the circle is full to end
the sport.
During sports
● Swipe the screen up/down to flip through
exercise data.
● Press the up button to pause/resume the sport.
Exercise data is displayed after the exercise
has ended. Swipe up the screen to flip through
exercise data:
When you start an outdoor sport, the watch
begins searching GPS signal. Please let the
Letsfit app run in the background and allow the
location services on your phone, then move to
an open area and stand still to better receive the
signal. After the GPS is connected, the watch will
start tracking the sport.
For best results, wait for the signal to be discovered before you
start your activity.
If you don’t want to wait for the GPS signal to be discovered, tap
"Skip" to move to the activity screen and get started. But your
movement route cannot be displayed before successful
positioning. Sport starts after successful positioning or skipping
positioning.
GPS connected
successfully
- 16 -
Note:
To monitor heart rate more accurately, wear the watch on the
upper position of your wrist and a bit tighter than usual when
you exercise. In addition, complete your profile in the app.
3. Monitoring Heart Rate
Tap "Heart Rate" in the function list to enter the heart rate
interface, the watch will automatically measure your real-time
heart rate. You can also view your all-day heart rate data in the
heart rate interface of the watch or in the app.
Notes:
● After ending an exercise, you can
view detailed data and graphs in the
app (Go to the "Training" page, swipe
down the page to synchronize data,
and tap the exercise you just ended).
● After you finish the exercise in GPS
mode, your movement route will be
displayed in the app (Go to the
"Training" page of the app, and then
tap on the exercise you just ended to
view).
● Data of exercises less than one
minute will not be saved.
● When the battery level is less than
10%, the watch enters low battery
mode, at which you cannot start a sports mode. Please charge
the watch to operate it again.
2. Tracking Daily Activity Data
The watch tracks your all-day activity data,
including steps, calories burned and distance.
Exercise record
Heart rate
Training
Heart rate
88
H
130
Max
Min
50
50
95
140
0
6
12
18
24
- 17 -
4. 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.
5. Measuring Blood Oxygen Level
Before measuring, wear the watch a finger-width below the
wrist bone and a bit tighter than usual.
1) Tap "Blood Oxygen" 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.
Blood Oxygen
Stress
Sleep
O
2
Sleep
Sleep duration
08
h
30
min
22:30 06:30
6. Monitoring Stress Level
Based on your heart rate variability, your stress score helps you
see if your body is showing signs of stress on a daily basis. The
score ranges from 1 to 100, where a higher number means your
body is showing more signs of physical stress. To see your daily
stress score, wear your watch to sleep.
1) Tap "Stress" in the function list to enter the stress measuring
mode.
Blood Oxygen
Stress
Sleep
O
2
Note:
The measurement data may be incorrect due to movement or
finger tapping. Please keep still and tap to measure again.
- 18 -
7. Breath Training
Tap "Breath training" in the function list to enter breathing mode.
Select the rhythm and duration of the breathing training. Then
tap to start and follow the instructions to breathe. If you
want to end the breathing training, press the up button to exit.
8. Setting Alarms
Method 1 (On the watch):
1) Tap "Alarm" in the function list.
2) Tap "+" to add an alarm. Set the alarm time,
and repeat days.
3) Tap to add the alarm.
Notes:
● You can set up to ten alarms on the watch.
● To enable/disable the alarm, tap "Alarm" on the watch and
then choose to turn on/off the alarm you set.
Blood Oxygen
Stress
Sleep
O
2
Str
e
ss
56
88
Max
Min
12
H
33
66
99
0
6
12
18
24
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.
- 19 -
9. 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.
10. More Functions
10.1 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 "Notification alerts" is enabled in the app ("Settings"
page → "EW4" → "Notification alerts", turn on "Notification
alerts"), will calls be notified.
● When the "Do not disturb" function is enabled in the app
("Settings" page → "EW4" → "Do Not Disturb") or on the watch
(Status bar → ), calls will not be notified on the watch
during the do-not-disturb period.
Method 2 (In the app):
1) Go to the "Settings" page in the Letsfit app and tap "EW4".
2) Tap "Sleep Alarm" to enter the alarm setting interface.
3) Tap "Add" to add an alarm.
4) Set the alarm time, title, vibration period and repeat days.
5) Tap "Confirm" to save your settings.
- 20 -
10.2 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.
10.3 Sedentary Reminder
The watch vibrates to remind you to get up and move around
when you have been sitting too long ("Activity" page → "Active
Hours" → "Sedentary Alert Settings", enable the movement
reminders function and set the remind interval.)
Notes:
● Only when "Notification alerts" is enabled in the app ("Settings"
page → "EW4" → "Notification alerts", turn on "Notification
alerts"), will messages be notified.
● When the "Do not disturb" function is enabled in the app
("Settings" page → "EW4" → "Do Not Disturb") or on the watch
(Status bar → ), messages will not be notified on the watch
during the do-not-disturb period.
Basic Specifications
Model No.: EW4
Sync: Bluetooth 5.0
Screen: 1.28" color LCD
Battery Capacity: 300mAh
Working Voltage: 5V-500 mA
Working Temperature: -10℃ to 40℃
Weight: 1.48oz (42g)
Waterproof Rating: 5ATM
Working Time: about 10 days
- 21 -
FAQs
Failure to pair the watch with the Letsfit app on your
smartphone again
1. Tap "Settings" → "Reset" on the watch, and tap "√" to
confirm.
2. Use the Letsfit app to scan the QR code displayed on your
watch to pair.
If you still fails 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. 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 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 Letsfit app, and enable
the Location and all Notifications.
2. Enable your phone’s Bluetooth and go to the Letsfit app to
pair the watch.
3. Open the app. Go to the "Settings" page → "EW4" →
"Notification alerts", turn on "Notification alerts".
4. Make sure the "Do not disturb" function is not enabled in the
app or the watch.
- 22 -
The watch is disconnected from the Letsfit 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 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 "EW4",
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.
We strive to build our products with the highest attention to detail and
craftsmanship. However, sometimes there are occurrences of a defect, so we are
happy to offer a ONE-year hassle-free warranty on all our devices as we continue to
make amazing products. Please contact us if you have any questions about our
devices.
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.
• Consult your doctor before use if you have any preexisting conditions that might
be affected by using this device.
• 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.
• 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.
• 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.
Warranty
Important Safety Instructions
- 23 -
- 24 -
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 recreational purposes and 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 accepted for the consequences of any erroneous 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.
Safety Instructions for Skin Irritation
If you experience discomfort or skin irritation when wearing your smart watch, then we
recommend you try cleaning your device. Sometimes residue or foreign materials build
up
around your device and may aggravate your skin. It's also possible that you are not
wearing the watch correctly. We recommend making sure to clean and adjust your
watch regularly for a more comfortable fit.
Caution:
• If you experience skin irritation when wearing your watch, please refrain from
wearing, and wait two to three days to see if your symptoms ease. If symptoms
persist or worsen, please consult a physician.
• If you have eczema, allergies or asthma, you may be more likely to experience a skin
irritation or allergy from a wearable device.
Clean your watch
Clean your wrist and watch band.
• Please clean your wrist and watch band after exercising or sweating. You can clean it
with fresh water, wipe it with a little rubbing alcohol, and dry thoroughly.
• When you wear sunblock, lotion, or oil, please clean your watch with soap-free
detergent, making sure to rinse and dry thoroughly.
- 25 -
• If the watch gets stained or contains any foreign materials, wipe it with a moistened,
soft bristle toothbrush.
Avoid certain cleaning substances and products.
• Do not use soap, cleaning agents, abrasive materials, or compressed air to clean your
watch.
• Skin irritation may be caused by soap, detergent, hand sanitizer, or cleaning agents
left on your watch.
• Do not clean the watch using ultrasonic waves or external heat sources.
Note: Moisture or the build-up of any substance on the back of your watch can cause
the device to charge slowly, or not at all. It may also cause inaccurate heart rate
measurements, and skin irritation.
Keep your watch dry
To help the watch run its best and prevent skin irritation, you'll need to keep your watch
nice and dry. Whenever it gets wet, dry it thoroughly with a clean, soft cloth. Also dry
the charging surface on the backside of your watch before attaching it to a charger or
wearing it.
Please also keep in mind:
• If you sweat for more than two hours while wearing your watch, be sure to wash your
band and your wrist using the directions above to avoid skin irritation.
• Prolonged rubbing and pressure may irritate the skin, so give your wrist a break by
removing the watch regularly.
• If your watch is exposed to any liquid other than fresh water (like salt water), rinse it
with fresh water immediately and dry it thoroughly with a clean, soft cloth.
• To minimize damage to your watch, avoid any direct contact with sunscreen or insect
repellent sprays. Remove your watch while applying these sprays.
Wear your watch properly
• 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.
• When exercising, wear the watch higher on your wrist. The blood flow in your arm
increases the further up you go, moving the watch up a couple of inches (about 2-3
finger widths above your wrist bone) can improve your heart rate signal.
• Do not wear your watch too tight. Wear it loose enough so that it can move back and
forth on your wrist. The watch should also be slightly tighter (snug but not
constricting) during exercise than during all-day wear. Lower the watch on your wrist
and loosen it after exercise.
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.
201-02-SH-EW4-V2
Europe business name: AMZLAB GmbH
Europe business address: Laubenhof 23, 45326 Essen, Germany
Europe phone number: +491745298066
