How do I replace my heartbeatz battery?

INDICATING A DEAD BATTERY:

You can monitor the battery level by connecting to your heartbeatz on the AppleWatch app.

Random red and green flashes/turning off may indicate that you need to change your battery.

A dead battery is indicated by a heartbeatz flashing red once every minute. 

REPLACING THE BATTERY:

1. If you need to change the battery, insert the rounded edge of a paperclip (or any similar object), into the notch on the short end, and twist.
2. Replace it with a Lithium CR2032 coin cell battery, making sure the positive side (with the writing) faces down.

BATTERY CAUTION

Do not ingest battery. Chemical Burn Hazard.

This product contains a coin cell battery.  If the battery is swallowed, it can cause severe internal burns in just 2 hours and can lead to death.  Keep new and used batteries away from children.  If the battery compartment does not close securely, stop using the product and keep it away from children.  If you think a battery might have been swallowed or placed inside any part of the body, seek immediate medical attention.

WARNING: This product contains one or more chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.