Frequently Asked Questions

CALM. will initially be available in Japan, US and Canada. Availability in other countries will follow once we clear certification.

CALM.’s warranty is 1 year, and does not cover consumables and accessories. Details are available here

CALM. is not a medical device, and should not be used to diagnose or treat medical conditions.

Electrocardiogram
3 axis Acceleration
Heart rate and heart rate zones
Resting heart rate when worn while sleeping*
Irregular heart rhythms
Respiration rate*
Sleep stages and quality*
Autonomic nervous state (CALMness Score)

Check out our getting started guide here: Guide to using CALM.

The primary information from CALM. is your ECG wave, which is the electrical signal from your heart beat. The CALM. App uses this signal to calculate your heart rate, detect possible irregularities, and other statistics, but to really understand the ECG, you may want to get to know the science better. Here are some good sources of information.

Videos:

The Basics of ECG by Interactive Biology https://www.youtube.com/watch?v=4vkbywows-o

More about irregularities from tootRN https://www.youtube.com/watch?v=mUY2nWqdPxA

Online Courses:

A very comprehensive course about using ECG for athletes from BMJ Learning: http://learning.bmj.com/learning/course-intro/.html?courseId=10042239

CALM. does not have a on/off switch, and simply goes to sleep if not used for a while. You can double tap CALM to wake it up from sleep.

CALM. uses Bluetooth LE to sync. Under real world conditions, It will work up to 3 meters, but will depend on your smartphone, and other interference in the environment.

CALM. is rated IPX3. It is water resistant against splash and sweat. It is not designed for swimming or diving; submersion in water can cause damage.

Make sure the gel pad or the chest belt is firmly attached to your body. Clean your skin and make sure it is free of dirt and oil before application. If you have dry or hairy skin, conductive wet gel such as these might help improve signal quality.

Make sure the gel pad or the chest belt is firmly attached to your body. Clean your skin and make sure it is free of dirt and oil before application. Follow this video guide for more details.

Make sure the gel pad or the chest belt is firmly attached to your body. Clean your skin and make sure it is free of dirt and oil before application. Follow this video guide for more details:

CALM. will work continuously for up to 72 hours.

The CALM. App supports the following Operating systems:
Android 4.4 and up

iOS 10 and up

We have tested the CALM. App with the following phones:

• Apple iPhone 5c
• Apple iPhone 6
• Apple iPhone 7
• Huawei P9
• Motorola G4
• Xiaomi Redmi 3

The CALM. App will support English and Japanese*.

You can find it on our compliance page.

We currently do not have the feature to share data across other apps.

We have custom designed foam electrodes, and chest belts. We are working on more accessories for the future.

It is possible; however due to limited manpower, we cannot support all commercial developments for CALM. Please contact us for details.