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 can't be disabled.
- Watch > System > More Settings > Vibrations > Key Vibrations | Alert Vibrations
- 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.
- Select to set up to 3 timers with the repeat feature available.
- 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.
- Select to use the stopwatch function.
- 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.
- Select to set up to 10 new alarms or manage existing alarms.
Altitude Alert
- Hold the back 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
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.
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- Hold the back 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.
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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 button to access your Toolbox -> System -> More Settings -> Light/Option Key
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"
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
Control Insta360
- To control your Insta360 from your COROS APEX Pro, 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 Pro 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 Pro 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.
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 button to open the Toolbox -> Night Mode.
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 button to open the Toolbox -> Watch Face
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 Device page from the bottom bar and select your device.
- Select Find Device to trigger the alert on the watch if it's close by.
- **Please 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.

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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.