Ref: 8376345

ONcoach 100

The ONCOACH 100 connects to your phone using the DECATHLON CONNECT application.

To discover and download DECATHLON CONNECT, click here.


How should I position my ONcoach 100 on my wrist?
How can I read my progress towards my daily steps target?
How can I record a sports session with workout mode?
How can I read the time on my ONcoach 100?
How can I measure my sleep?
How can I pair my ONcoach 100 with the ONcoach application?
How can I set my step and/or sleep goals?
How can I synchronise my sports sessions?
When creating my account, I get a message"Email address already taken", what should I do?
I cannot see a period of activity or sleep on the application, why is this?
Which application to use with my ONcoach 100?


Does my ONcoach 100 count my steps when I push a pushchair?
Does my ONcoach 100 count my steps when I am in the car?
My ONcoach 100 counts my steps when I am not walking?


What is the degree of precision of my ONcoach 100 when running (in workout mode)?
What are the different phases of sleep?
What is the degree of precision of my ONcoach 100 for everyday walking?
The distance measured when running does not appear to be precise (in workout mode)
Are my naps recorded?


What is the battery life of my ONcoach 100?
How should I change the battery in my ONcoach 100?
The LED display is weak or absent when I press the button, why is this?


Is my ONcoach 100 waterproof?
Four lights forming a cross come on when I press the central button. What does this mean?
How much memory does my ONcoach 100 have?
What is workout mode?


it is recommended to rinse your watch with clear or slightly soapy water because sweat, chlorine or salt water can deteriorate materials such as that of the bracelet over time
Then, using a cloth, wipe and dry the watch.

Avoid certain exposures:
- Has a magnet because the watch contains a magnetometer which could be damaged
- In the sun because prolonged exposure to the sun can have various repercussions, such as the loss of colors or the degradation of the battery and its lifespan.
- Chemical products because they are aggressive (household products, cosmetics, etc.)
- To children: the product contains a battery which can be fatal if swallowed.


Here you will find the troubleshooting sheet for the ONCOACH 100.
By following the steps in this sheet, you can check if there is a possible problem with your product. If necessary, you will find in the "I REPAIR" section the tutorials indicated for the repair. You can also come to the workshops of your DECATHLON store.

Link to download the watch troubleshooting sheet (coming soon).


On this product, it is possible to carry out the following repairs:

Replace battery
End of product life
ONcoach 100

spare parts

Here is the list of spare parts for the ONCOACH 100:

- CR2032 BATTERY :
Reference: 5867205

You can order spare parts (depending on availability) on our decathlon.co.uk site by clicking on one of the buttons below or contact the after-sales team at your usual DECATHLON store.

ONcoach 100