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Humboldt IW2, User Manual

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Humboldt IW2 User Manual Download Page 16

1. Swipe the screen of the watch, and tap "Timer" in the function list to enter the setting
interface.
2. Choose the countdown time or customize your timer.

Basic Specifications

Model No.: IW2,IW3
Sync: Bluetooth 5.0
Screen: 1.4" TFT LCD
Battery Capacity: 250mAh
Working Voltage: 5V-500 mA
Working Temperature: -10

℃

to 40

℃

Weight: 1.34oz (38g)
Waterproof Rating: IP68
Working Time: about 10 days

FAQs
Failure to pair the watch with the Letsfit app on your smartphone again

● Swipe the screen of watch and tap "Settings" to enter settings mode. Tap "System Menu" and
choose "Factory Reset". The information on the watch will be reset and the watch will be
restarted.
● 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. Search this device in the app to pair (Go to the "Settings" page → "+ Pair new device" → "IW2,

IW3"

→ tap "Search Devices").
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 Letsfit app, 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

→

"IW2, IW3"

→

"Notification alerts",

turn on "Notification alerts".
4. Make sure the "Do not disturb" function is not enabled in the app or the watch.

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

Summary of Contents for IW2

Page 1: ... 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 wa...

Page 2: ... 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 mov...

Page 3: ...etup 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 IW2 IW3 Setting up Your Watch Charging your watch Please fully charge your watch before initial use 1 I...

Page 4: ...find the quick release lever 2 While pressing the quick release lever inward gently pull the wristband away from the watch to releaseit 3 Repeat on the other side Assembly 1 Toreattach 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 th...

Page 5: ...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 yourwrist 2 Do not wear your watch too tight A tight band restricts blood flow potentially affecting the heart rate signal This bei...

Page 6: ...her 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 Letsfit app NOT in the Bluetooth settings of your phone 1 Enable the Bluetooth of yoursmartphone ...

Page 7: ...device IW2 IW3 tap SearchDevices 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 ...

Page 8: ...terfaces 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 switch function interfaces including training training record heart rate blood oxygen today sleep breath alarm stopwatch timer music control and settings Swipe down to seenotifications Swipe left to view today s data heart rate data or s...

Page 9: ...ap and hold the home screen 2 Swipe to choose one and tap toconfirm Method 2 1 Open the Letsfit app go to the Settings page IW2 IW3 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 finishsetting Function List Tracks your exercise data in up to 10 sports modes Choose the mode that you want to start ...

Page 10: ...tart a sport Tap Training Swipe the screen to select a sports mode you want to start Set target Before beginning an exercise you can set training goals such as distance duration calories burned etc GPS connecting Only for outdoor running outdoor walking outdoor cycling modes When you start an outdoor sport the watch begins searching GPS signal Please let the Letsfit app run in the background and a...

Page 11: ... screen to flip through exercise data 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 outdoor running outdoor walking or outdoor cycling exercise in GPS mode your movement track will be displayed in the app Go to the Training page of the app and t...

Page 12: ...ta including steps distance clories burned average pace average speed and etc 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 theapp Note To monitor heart rate more accurately wear the watch on the...

Page 13: ...day activity data including steps calories burned and distance 今日数据图片 6 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 7 Breathing Guide Tap Breath in the function list to enter breathing mode Select the speed and duratio...

Page 14: ... 4 Set the alarm time title vibration period and repeat time 5 Tap Confirm to save yoursettings You can enable disable the alarm on your watch Tap Alarm on the watch and then choose to turn on off the alarm you set 9 Controlling Phone Music After the watch is connected to your phone tap Music control in the function list and control the music playing on your phone Note You can only control the mus...

Page 15: ...he message content Notes Only when Notification alerts is enabled in the app Settings page IW2 IW3 Notification alerts turn on Notification alerts will messages be notified When the Do not disturb function is enabled in the app Settings page IW2 IW3 Do Not Disturb or on the watch Status bar messages will not be notified on the watch during the do not disturbperiod Sedentary Reminder The watch vibr...

Page 16: ...tphones 2 Search this device in the app to pair Go to the Settings page Pair new device IW2 IW3 tap Search Devices 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 notificati...

Page 17: ...phone 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 com...

Page 18: ...s 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...

Page 19: ... suivantes 1 l appareil ne doit pas produire de brouillage et 2 l utilisateur de l appareildoit accepter tout brouillageradioélectriquesubi mêmesi le brouillageest susceptible d encompromettre le fonctionnement l appareil numérique du ciem conforme canadien peut 3 b nmb 3 b This device meets the exemption from the routine evaluation limits in section 2 5 of RSS 102 and compliance with RSS 102 RF e...

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