Set-Up
Setting up
your new COROS watch should take only a few quick steps for you to be ready to
begin recording activities.
- Download the COROS app from the
iOS or Google Play store
- If your watch is not already
turned on, hold the Backlight Button (see photo in "Button
Layout) for 2-3 seconds or until the watch turns on
- Choose what language you prefer
to have on the watch
- Open the COROS app and choose
the Profile Page (4th tab on the bottom), then select “Add New
Device”
- Scan the QR code on your watch
to connect, or you can manually pair via Bluetooth if you prefer
- Choose the Wearing Hand →
Choose the Button Layout → Notifications → User
Settings
Auto-Lock
When you
first receive your COROS watch, it will be set as default to “Scroll to Unlock”
to prevent any accidental starts/cancellations of activities, etc. To unlock
your watch, scroll the dial consistently in one direction until the display
unlocks
- To change the Auto-Lock setting
hold the BACK/LAP button to access the Toolbox → Settings →
More Settings → Auto-Lock
Button Layout
1 (LIGHT):
- Long press to activate and
deactivate backlight
2 (Digital Dial/CONFIRM):
- Scroll/rotate the dial to move
your selection up and down
- Press
to confirm a selection
- Hold to finish a workout
3 (BACK/LAP):
- Press to return to the previous
screen (BACK/LAP button)
- Press to record a lap or rest
during workouts
- Hold to open Toolbox/shortcut
menu
Firmware Updates
·
To check for firmware updates, open the COROS app and
navigate to the Profile Page. To view available firmware updates, tap on the
watch icon and select Firmware Version.
How
to Charge Your COROS Watch
- Locate
the charging cable for your COROS watch.
- Plug
the charging cable into a USB power adapter or a computer.
- Connect
the charging cable with your COROS watch.
- Make
sure the cable is fully inserted into the back of your COROS watch.
- The
cable is not magnetic and will not snap in automatically.
- When
charging begins, the watch will power on automatically. Watch face will
display the current battery percentage.
- When
the charge is full, your COROS watch will display a green circle and a
100% battery status.

* COROS watches support charging during workouts. Feel
free to charge your COROS watch in the middle of the workout recording.
Charging will not interfere, stop, or restart your ongoing workouts.
Recording Your First Workout
- To start an activity, from the
main watch face, press the digital dial once to open the library of
activities to choose from.
- Please wait until the watch
indicates that you have a strong GPS signal (indicated by an “Acquired”
message at the top of the screen) and that heart rate is being measured
(indicated by a heart icon at the bottom of the screen) before starting
your activity.
- To pause an activity, with the
watch unlocked, press the digital dial button once to pause the current
workout. During the pause, a paused timer and current heart rate will
display on the page.
- To finish a workout, from the
paused workout page, scroll to “Finish” and hold the digital dial for
three seconds to end the workout.
- After finishing a workout, the
workout details page will display. If there are multiple laps or sessions
recorded, you can select to view the lap details on the bottom of this
page.
- To access the previously saved
workouts on your COROS watch, press the digital dial to open your activity
library, scroll to History on the main menu and select a workout to view
details.
Settings/Preferences
- Toolbox/Menu: From the main watch face,
press and hold the BACK/LAP button to open the Toolbox/Quick menu
- Do Not Disturb: Select to switch ON/OFF
Do Not Disturb mode
- Alarm: Select to set up a new
alarm or manage existing alarms
- Available alarm modes: Only Once | Every Day |
Custom
- Compass: Select to open the 3D
compass
- Press the CONFIRM button to
toggle between the following info:
- Compass
and current time
- Compass, GPS coordinates,
elevation and barometer
- Broadcast HR: Select to take a heart
rate measurement and broadcast HR to Bluetooth-supported devices and apps
- Altitude Performance: Select to take a blood
oxygen SpO2 measurement
- Press the CONFIRM button to
start a new SpO2 measurement
- Data available on this
page:
- Top section: Altitude performance
index (available if elevation is over 2500m or 8250ft)
- Middle section: SpO2 and time since
last reading
- Lower section: Elevation
- Scroll down to view the SpO2
(in red, yellow and green) and elevation (in blue) graph in the last 24
hours and 3 days.
- UltraMax GPS mode: Select to switch ON/OFF UltraMax GPS mode during outdoor running workouts to
extend the battery performance. We recommend only using this feature when
necessary as it greatly reduces the accuracy of your measurements

- Navigation Settings: Select to choose the
following settings:
- Select
Courses
- Course
Selection
- Start
Course
- Elevation Details
- Start
Point Direction
- Start
Point Direction
- Map
Direction
- Deviate Course Alert
- NOTE: This is not a workout
mode and no workout data will be saved.
- Map: Select to view and follow
a saved route that is closest to your current location
- Stopwatch: Select to use the
stopwatch function
- Press the CONFIRM button to
start and pause the stopwatch
- Press the BACK/LAP button to
start a new lap and reset the stopwatch
- Hold the BACK/LAP button to
exit the page without interrupting the stopwatch
- Available in daily and workout
modes
- Timer: Select to set up to 3
timers with the repeat feature
- Setup new times will overwrite
previous ones
- Press the CONFIRM button to
start and pause the timer
- Press the BACK/LAP button to
restart the timer or return to the timer setup page
- In order to repeat a timer,
select Repeat → ON
- Hold the BACK/LAP button to
exit the page without interrupting the timer
- Available in daily and workout
modes

- Watch Faces: Select to choose among 5
watch faces stored on the watch and theme color options
- Download new watch faces from
the COROS app
- Workout Settings (accessible
during workouts):
Select to access the workout settings for the current workout
- System: Select to open System
menu
- Manage
backlight and visibility
- To change backlight settings:
System → More Settings → Backlight
- With “Gesture Backlight”
turned OFF, pressing any button on the watch will still activate the
backlight for 10 seconds.
- With "Gesture
Backlight" set to AUTO or ALL DAY, raising your wrist or pressing
any button will activate the backlight.
- Due to the nature of the
Memory in Pixel (MiP) screen used on COROS
watches, visibility is the best when used in outdoor environments under
direct sunlight. The stronger the sunlight is, the better the screen
visibility is. To improve
visibility:
- Activate “Night Mode”: Hold
the BACK/LAP button to open the Toolbox, scroll to find Night Mode
- Select for low brightness
level always-on backlight
- Once switched on, the mode
will be deactivated automatically after the next sunrise.
- Use White Background: Main
watch face → System → Workout Interface → Background
Color → White
- Change
Language
- When you turn on the COROS
watch for the first time or reset the watch, you can choose the system
language.
- From the main watch face
→ System → More Settings → Language
- Change
Orientation
- Main watch face → System
→ More Settings → Wrist Hand → Left | Right
- Main watch face → System
→ More Settings → Digital Dial → Dial Location →
Right | Left Side
- Main watch face → System
→ More Settings → Digital Dial → Dial Orientation
→ Clockwise Down | Up
- Remove, change, and fasten
COROS watch bands
- COROS APEX 2 watch bands are
20mm wide and compatible with select 3rd party quick-release bands.
- Locate the metal pin on the
band.
- Slide the pin on the spring
bar to release the old band.
- Slide the pin on the spring
bar and Insert the new band to the watch.

- Change
Unit Settings
- On COROS watches: System
→ More Settings → Unit → Imperial (feet) | Metric
(meters)
- On the COROS app: Profile page
→ Settings → Units → ft/lbs |
cm/kg
- Bluetooth
Connectivity
- To pair Bluetooth accessories
with your COROS watch, hold the BACK/LAP button to access the Toolbox
→ System → Accessories → Add Bluetooth
- Please ensure that the device
which you are attempting to pair is in pairing mode and
discoverable.
- You can add multiple
accessories from the same type to the Added List on your COROS watch.
Only one accessory per type can be paired with your COROS watch during
workouts.
- Accessories from different
types can work together in one workout. For instance, a paired chest
strap and cycling power meter can both work in Indoor Bike mode at the
same time.
- Heart Rate
Broadcast
- Main watch face → press
and hold the BACK/LAP button to open Toolbox menu → Broadcast HR
- Open the pairing page on
supported devices/apps and wait to connect.
- Notifications
- To edit notification settings,
open the COROS app and navigate to the Device page, select
“Notifications”
- On this screen you have the
option to enable/disable notifications from any apps which you
choose.

- GPS
Modes
- To edit which GPS mode you are
using, hold the BACK/LAP button to open the Toolbox → System
→ More Settings → GPS → Mode
- Standard GPS: Standard GPS only takes
one GPS reading per second and typically works well for normal use when
under standard conditions.
- All Systems On Mode: All Systems On mode turns on
all satellite systems simultaneously, including GPS, GLONASS, Galileo, Beidou, and QZSS. Previous generations of GPS
watches only allowed for 2-3 systems to be turned on at once, we highly
recommend that All Systems on is the GPS mode used for everyday
workouts.
- Ultra-Max GPS Mode: UltraMax
GPS mode utilizes GPS, motion sensors and proprietary algorithms to
extend the battery life without sacrificing too much of the tracking
accuracy. For every 120 seconds, the GPS is switched on for 30 seconds.
Ultra-Max mode will be the least accurate GPS tracking of all our GPS
modes and is not recommended to be used unless necessary.
- Battery Usage
Report & Prediction
- Built into every COROS watch
is a "Battery Usage" tool that allows you to view on-demand
usage reports on the consumption of your watch battery during the current
charging cycle.
- To access the Battery Usage
tool, hold the BACK/LAP button to access the Toolbox, then scroll until
you find "Battery Usage"
- The Battery Usage tool will
then display a graph that shows you the current battery percentage of
your watch, a graph showing your historical battery drain, when your last
charge was, and the estimation of how long your battery will last based
on "standard use".
- To view a more in-depth
breakdown of the battery usage statistics, press the digital dial.
- From this screen you can see
the following metrics: Remaining Power, Estimated Daily Use Left,
Estimated Max Daily Use Left, Estimated GPS Use Left, Last Charge, Since
Last Charge. You will also find the most common features which cause
battery drain here, and what percent of your recent battery drain can be
attributed to these common features. Below is an explanation of each of
the common features which consume battery:
- System: Normal operating
activities. Any type of regular maintenance on the watch or features
that are vital to maintaining a functional watch (i.e. keeping the clock
up-to-date) will fall within the "System" category
- Notifications: Any notifications which
are pushed to your watch, both for workout alerts (lap alerts, etc.) and
daily notifications (calls, text messages, etc).
This is displayed as a number rather than being included in the overall
percentage estimate.
- GPS Workouts: Any activity recorded
which uses GPS signals to measure and record distance, etc.
- Backlight: Any power used to
illuminate your watch screen. The more you use your backlight (Night
Mode, Backlight Gesture, etc.), the higher this percentage is likely to
be.
- Daily Heart Rate: Measurements taken that
consume battery to provide daily heart rate data. You have the ability
to specify this to "Real-Time" or "Every 10 Min"
- What sensors are in the
watch?
- 3D Compass, Accelerometer,
All-Satellite Dual-Frequency GNSS, Barometric Altimeter,
Electrocardiogram Sensor, Gyroscope, Thermometer, Wrist-based Heart Rate
Sensor, Wrist-based Pulse Oximeter
Wearing Your Watch
To ensure
that your watch can gather the most accurate data possible, here are a few best
practice tips to follow.
- Wear the watch tightly, but not
so tight as to cut off circulation. It should fit snug and not slide
around with movement.
- Leave a 1cm gap between your
wrist bone and the watch. The higher the watch is above the wrist bone, the more flush
the surface of your skin, and the less likely the sensor is to be impacted
by flexion in the wrist.
- Keep your hands warm. The OHR signal comes from
your blood reflection. So, the more blood flow you have, the better signal
your watch will receive. The weather doesn’t need to be freezing to impact
your OHR accuracy. As long as your hands feel cold, your blood flow is reduced
significantly. The best way to solve this is to try and keep the area
where your watch is located on your wrist warm.. Another suggestion is
always warm up your body (and your hands) before starting your workout in
the winter.
- Wait for your watch to display
a stable HR reading. Just like your body, your OHR sensor requires some warm-up
too. It’s recommended to stay on the “Start” page and wait a little longer
so the watch can filter some noise by itself. Our watches also provide an
alert beep to let you know when it’s ready to go ( if sounds are turned
off, you will see a heart symbol that will be solid and steady when
ready)
- Select the proper training
mode. The
regular running, cycling, and swimming algorithms are not specifically
built for tracking rapid changes in heart rate. When you train with
intervals, please select the Interval Training mode under Run mode for
enhanced heart rate tracking sensitivity.
3rd Party
Integrations/Data Syncing
Link your
COROS account with 3rd party apps to enjoy a fast and seamless data syncing
experience.
- On the COROS app →
Profile page → 3rd Party Apps → Log in via the pop-up browser
and follow instructions to complete the integration. Here are a few
popular apps, to view the full list see the appendix.
- Final Surge
- PWR
Lab
- Relive
- Runalyze
- Strava
- Stryd
- TrainingPeaks
Alarm, Stopwatch, Timer
Access
timer, stopwatch and alarm features from the toolbox/shortcut menu.
- Main watch face or during
workouts → press and hold the BACK/LAP button →
toolbox/shortcut menu.
Change vibration
or tone settings on your watch.
- Watch → System →
More Settings → Vibrations → Key Vibrations | Alert
Vibrations
- Alert Vibrations apply to
Timer/Stopwatch/Alarm.
- Watch → System →
More Settings → Tones → Key Tones | Message & Call Tones |
Alarm Tones | Activity Alert Tones
- Alarm Tones apply to
Alarm.
- Activity Alert Tones apply to
Stopwatch.
- Tones for Timer cannot be
disabled.
Timer
- Select to set up to 3 timers
with the repeat feature available.
- Setup new times will overwrite
previous ones.
- Press the CONFIRM button to
start and pause the timer.
- Press the BACK/LAP button to
restart the timer or return to the timer setup page.
- In order to repeat a timer,
select Repeat → ON.
- Hold the BACK/LAP button to
exit the page without interrupting the timer.
- Available in daily and workout
modes.
Stopwatch
- Select to use the stopwatch
function.
- Press the CONFIRM button to
start and pause the stopwatch.
- Press the BACK/LAP button to
start a new lap and reset the stopwatch.
- Hold the BACK/LAP button to
exit the page without interrupting the stopwatch.
- Available in daily and workout
modes.
Alarm
- Select to set up to 10 new
alarms or manage existing alarms.
- Available alarm mode in Only
Once | Every Day | Custom by day of week.
- Snooze time is not
customizable.
Altitude Alert
- Hold the BACK/LAP button
→ System → Sensors → Barometer → Storm Alert
→ OFF | ON
- Select to switch ON/OFF
Altitude Alert mode. When elevation is above 2500 meters or 8250 ft and
heart rate is higher than normal, your watch will alert you.
Battery Usage Tool
Built into
every COROS watch is a "Battery Usage" tool that allows you to view
on-demand usage reports on the consumption of your watch battery during the
current charging cycle.
To access
the Battery Usage tool, hold the back button to access the Toolbox, then scroll
until you find "Battery Usage". The Battery Usage tool will then
display a graph that shows you the current battery percentage of your watch, a
graph showing your historical battery drain, when your last charge was, and the
estimation of how long your battery will last based on "standard
use".
- System: Normal operating
activities. Any type of regular maintenance on the watch or features that
are vital to maintaining a functional watch (i.e. keeping the clock
up-to-date) will fall within the "System" category
- Notifications: Any notifications which
are pushed to your watch, both for workout alerts (lap alerts, etc.) and
daily notifications (calls, text messages, etc).
This is displayed as a number rather than being included in the overall
percentage estimate.
- GPS Workouts: Any activity recorded
which uses GPS signals to measure and record distance, etc.
- Backlight: Any power used to
illuminate your watch screen. The more you use your backlight (Night Mode,
Backlight Gesture, etc.), the higher this percentage is likely to
be.
- Daily Heart Rate: Measurements taken that
consume battery to provide daily heart rate data. You have the ability to
specify this to "Real-Time" or "Every 10min".
Control Insta360
·
To control your Insta360 from your COROS APEX 2, the
first thing that you will need to do is connect the two devices via Bluetooth.
In order to do so, power on your Insta360 and then hold the back button on your
APEX 2 to open up the Toolbox. From the Toolbox, select
Insta360 → "Confirm” to
add camera.
·
Once you have paired the two devices, you will control
your Insta360 camera through the Insta360 widget in your Toolbox. To locate
this widget, hold the back button on your watch, scroll until you find
"Insta360 Control" indicated with a camera icon and select
this.
·
After your APEX 2 connects to the Insta360 device, you
then can scroll between using photo and video mode on the watch, using the
press function on the digital dial to take photos or start/stop videos directly
from your watch.
Control Insta360 GO 2
To pair
your COROS watch with an Insta360 GO 2 camera, follow the instructions below:
- Power
up Insta GO 2
- Enter Remote Pairing mode on
Insta GO 2
- Long press the Back button on
APEX 2, choose Camera Control
- Confirm on the watch and search
for the camera
- Add the camera
- Scroll between Photo and Video
mode
- Press the digital dial to take
photos or start/stop videos directly from the watch
Once
connected, you will be able to control your Insta360 GO 2 using the digital
dial. This includes starting/stopping photos and videos directly from the watch
For
information on how to pair with other Insta 360 cameras, please view this article.
When
pairing with the Insta GO 2, COROS watches will support 3 modes: Photo, Video,
and Video Pro. You are able to switch modes using the digital dial.
Downloading Maps
To download
maps to your COROS watch, please visit https://coros.com/maps/#/ to select any desired region
and follow along with the instructions for installation.
Alternatively,
you may use the Map Manager to download maps onto your COROS watch using WiFi. For detailed instructions, please visit here: Map Manager
Find My Phone & Find
My Watch
Users that
have their COROS watch and phone connected via Bluetooth can find their watch
via the COROS app and vice versa.
On the app
- Go to the Profile page from the
bottom bar and tap on the watch icon.
- Select Find
Device to trigger the alert on the watch if it is close by.
- NOTE: In order for "Find
My Phone" to work, it is required that the COROS app is running in
the background. Do not force close the COROS app if you wish to use this
feature. Force closing apps halts all Bluetooth connectivity that is
required.
- Stop the alarm once you find
the watch by pressing any button.
On the watch
- Go to the Toolbox Menu.
- From the main watch face,
press and hold the BACK/LAP button.
- Select Find My Phone.
Once COROS app receives the request, an alarm will be triggered.
Wellness Check and
HRV
·
Wellness Check is a convenient on-wrist test that
provides you with a comprehensive overview of your wellness status. To access
the Wellness Check test, press and hold the BACK/LAP button on your COROS watch
to open the Toolbox menu, then scroll to the Wellness Check option. Follow the
on-watch instructions to start the 30-60 second test. During this time,
your watch will use the optical heart rate sensor and ECG (electrocardiogram)
sensor to gather data.
·
After completing the Wellness Check, you can view the
results on your COROS watch right away, displaying key indicators such as
Stress Level, Resting Heart Rate, HRV, Breathing Rate, and SpO2. After syncing
your watch with the COROS app, you can view and track your results over time.
Light Key Shortcut
·
The Light Key shortcut creates a way to view the
feature you need most, in the most efficient way possible.
·
To create the shortcut, hold the BACK/LAP button to
access your Toolbox → System → More Settings
→ Light/Option Key
Music
·
Using your COROS charging cable, you will first want
to connect your COROS APEX 2 to a Mac or PC. Once you have done so, wait for
the APEX 2 to appear as an external hard drive on your computer. You will
likely see this either on your desktop or in the "External Hard
Drive" section of the disk management section of your computer.
·
Next, after selecting the COROS APEX 2 hard drive on
your computer you will see two folders, "Maps" and "Music".
Open the "Music" folder on your hard drive. Using MP3 files stored
locally on your computer (the APEX 2 only supports MP3 at this time), simply
select the music you wish to download to your watch, then "drag and
drop" the files from your computer into the "Music" folder on
your COROS APEX 2.
·
With the music now stored on your COROS APEX 2, you
will want to ensure that you have either a speaker or Bluetooth headphones
connected to your watch in order to play music, as the watch itself does not
have speakers. To do so, hold the back button and navigate to Settings →
Accessories → Add Bluetooth, and ensure your desired Bluetooth device is
in Pairing Mode to make a connection.
·
Once you have headphones connected and music stored on
the watch, all you will need to do is hold the BACK/LAP button, navigate to the
"Music" icon and use either the touch screen or digital dial to begin
playing music.
Night Mode
·
Night Mode provides low brightness level always-on
backlight for training at night or darker conditions. Frequently activating the
standard backlight will drain the battery life on your COROS watch.
·
To access Night Mode, hold the BACK/LAP button to open
the Toolbox → Night Mode
Storm Alert
All COROS
watches are equipped with barometers to detect air pressure changes, which can
be used to predict and detect weather changes. In the event of an incoming
storm, the Storm Alert feature on your COROS watch can notify you in time
should immediate actions be needed to keep you safe during training and daily
use.
- Hold the BACK/LAP button
→ System → Sensors → Barometer → Storm Alert
→ OFF | ON
- Once enabled, your COROS watch
will receive a Storm Alert even if you are tracking an outdoor workout or
in Do Not Disturb mode.
- A drop of 4 hPa or more in 3 hours will trigger the storm
alert.
Watch Faces
From the
COROS app: To
change the watch faces available on your COROS watch, open the COROS app and
choose the Watch Icon/Device Page (4th tab on the bottom), then select
“Watch Faces”.
- Once in the Watch Face Library,
you can select any face of your choice to save to your watch, up to five
faces can be stored on the watch
From the
watch: Hold
the BACK/LAP button to open the Toolbox → Watch Face
Widgets
Widgets can
easily be accessed from the main watch face by scrolling up and down. Press the
CONFIRM button on certain widget pages for additional information. Use either
the dial or touch screen to view the recent history of the selected widget data
page.

To
customize these widgets first open the COROS app. Next, select the
"watch" icon in the bottom right-hand corner of the screen, then
"Customization" within the COROS APEX 2 Device section. Now choose
"Daily Data" which will display the full list of widgets that can be
displayed.
Using the
three white horizontal lines on the right-hand side of the screen, you can drag
and drop the different fields into any order that you would like. The widget
which is shown at the top of the screen on the COROS app will appear as the
first data available when scrolling down on your COROS APEX 2 watch.
To remove
or add widgets, you can use the +/- buttons on the left-hand side of the COROS
app. All of the widgets that are currently appearing on your watch will appear
under the "Manage Daily Data display order" heading. Widgets that are
not displayed on your watch will appear under the "Hidden Daily Data"
field.
After
customizing your widgets to your preference, make sure to choose the
"Save" button in the upper right-hand corner of the app to populate
these changes to your watch. If you want to reset the widgets to factory
settings, choose "Restore Defaults" at the bottom of the COROS
app.
- Active
Calories
- Active Calories measurement
displayed on COROS watches and within the COROS app is an estimation of
the calories burned during recorded workouts and times where your watch
records a cadence over 130 steps/minute, most common when walking
quickly.
- In order to change or set your
daily goals (both Calories and Exercise time), open the COROS app and
navigate to your profile page. Next, scroll to the very bottom of the
page to find where you can change your goals.
- Exercise Time
- Exercise Time is a measurement
showing the amount of time in which you have recorded exercises during
the day
- Sunrise/Sunset
- Solar
Noon
- Sunrise
- Sunset
- Dawn
- Dusk
- Date
- Heart Rate
- Real-time heart rate in
1-second rate.
- The HR graph on the watch and
the COROS app is not affected by this setting but the accuracy will
increase.
- Maximum, minimum and average
heart rate in the last 6 hours.
- Heart rate graph in the last 6
hours.
- Press the digital dial and
scroll to view the heart rate data in the last 24 hours.
- Heart rate is recorded every
10 minutes in daily use and every second in workouts.
- Elevation
- Last updated elevation in
meter (metric) or foot (imperial).
- Change the unit on your COROS
watch – main watch face → System → More Settings →
Units → Imperial | Metric.
- Maximum, minimum and average
elevation in the last 6 hours.
- Elevation graph in the last 6
hours.
- Press the CONFIRM button and
scroll to view the elevation data in the last 24 hours. Swipe left and right to view.
- Elevation is recorded every 10
minutes in daily use and every 5 seconds in workouts.
- Press and hold Digital Dial to
calibrate the elevation.
- Barometer
- Last updated
barometric/atmospheric reading in hPa
(Hectopascal Pressure) or mmHg.
- Maximum, minimum, and average
barometric/atmospheric reading in the last 6 hours.
- Barometric/atmospheric graph
in the last 6/12/18 hours.
- Press the CONFIRM button and
scroll to view the barometric/atmospheric data in the last 24/48/72
hours. Swipe left
and right to view.
- Change the history data
display range – main watch face → System → Sensors →
Barometer → Schedule → Last 6 | 12 | 18 Hours.
- Switch between Sea-level
Pressure/Station Pressure.
- Main watch face →
System → Sensors → Barometer → Data Source →
Station Pressure | Sea-level Pressure.
- Station pressure is measured
at a station without any altitude adjustment like from a house or the
top of a mountain. It will change at various altitudes.
- Sea-level pressure is the
station pressure adjusted to the sea level. It is often used for
predicting weather changes at the current altitudes.
- Provides weather forecast
using the arrow displayed on the top of the page.
- Arrow pointing downwards
indicates potential stormy weather.
- Arrow pointing upwards
indicates potential clear weather.
- The arrow consists of 2
parts. The left part shows the info 3-6 hours ago and the right part
shows the last 3 hours.
- Barometric/atmospheric data is
recorded every 10 minutes. Air conditioners and heaters can impact the
accuracy of barometric readings.
- Press and hold the Digital
Dial to access quick settings.
- Data
Source
- Display
Range
- Pressure Units
- Storm
Alert
- (i)
Baro. Direction
- Sleep
- Set up the Sleep Start Time on
the COROS app as close to when you typically fall asleep as
possible.
- COROS app → Profile
page → Profile Setting → Sleep Tracking → Start
Time.
- The watch will start checking
if you are asleep two hours before the sleep start time. If you fall
asleep 30 minutes prior to the sleep start time, the sleep tracking will
start 30 minutes before.
- If you wake up in the middle
of the night, as long as you fall back asleep within 5 hours of waking
up, the watch will continue to record sleep data.
- Temperature
- Using
the temperature
data
- Measure the water temperature
for swimming activities.
- Measure the air temperature.
- Take off the watch and let
it sit still for 30 minutes for accurate air temperature.
- NOTE: the temperature will
be affected by body heat if worn on your wrist or under the
sleeve.
- Maximum, minimum and average
temperature in the last 6 hours.
- Temperature graph in the last
6 hours.
- Press the CONFIRM button and
scroll to view the temperature data in the last 24 hours. Swipe left and right to view.
- Temperature is recorded every
10 minutes.
- Change the unit on your COROS
watch – main watch face → System → More Settings →
Units → Imperial | Metric.
- Steps
- The steps widget on your COROS
watch/app uses the hardware and proprietary algorithms to count the
number of steps you have taken in a day
- Floors
Climbed
- The floors widget on your
COROS watch/app uses the hardware and proprietary algorithms to count the
number of floors you have climbed in a day

Wi-Fi
From the
Toolbox menu, select System → Wi-Fi → Add Network. Your watch will
then search for nearby wireless networks and display the available options.
Scroll to find and select the network you want to connect to which will then
prompt you to enter the network password on the COROS app from a paired
phone.
Once you
are successfully connecting to a Wi-Fi network you will have the ability to
have your watch check for updates manually or automatically. To access these
options you will follow a similar process as before System → Wi-Fi
→ Firmware Update. Here you will see two options "Auto" and
"Check for Update". By selecting Check for Update, your watch will
then have the ability to make firmware updates without ever needing to use your
phone to do so.

Users can
update daily metrics and activity summary via Wi-Fi. This will be displayed as
"Wi-Fi Sync" in the Toolbox menu.

Can't Connect to COROS
App
A Bluetooth
disconnection icon will show up on the main watch face when the Bluetooth
connection is lost. “Please connect to the COROS App” will appear on the
Notifications widget. Additionally, you will not be able to manually sync the
data by pulling down the Progress page in the COROS app.
Please
follow the steps to fix the Bluetooth connection.
- In your phone settings, toggle
Bluetooth OFF. Wait 30 seconds and toggle back ON. Open the
COROS and try swiping down from the first page to perform a manual sync.
- If that does not work, please
turn the watch off: System > More Settings > Turn Off. Then
turn the watch on by holding down the power button for a few
seconds. Try a manual sync again.
Start, Turn Off and Restart
Start
- Press and hold the top button (LIGHT)
for 2 seconds or until the COROS logo shows up.
Turn Off
- Main watch face > System
> More Settings > Turn Off
Restart
- Turn off the watch via main
watch face > System > More Settings > Turn Off. Then turn it back on.
- Alternatively, press and hold
the top button (LIGHT) for 15 seconds or until the COROS logo shows up.
Reset
Resetting
the watch will not affect the data stored on your COROS app. However, all data
on your watch will be removed and customized settings will be cleared.
- On the app: Remove the watch from the
COROS app by going to the Profile page, selecting your watch, then
selecting "Remove" near the bottom of the page.
- On the watch: Main watch face > System
> More Settings > Reset All