Overview of the M7

Thank you for selecting the Morpheus M7 Bluetooth/ANT+ chest strap to be a part of your training.  We've designed it to give you everything you need to get the most out of each and every workout.  

Below you can find all the info you need to get started using it.  Attached to this article you will also find a PDF User Guide for the M7.

The M7 features the most accurate ECG and sensor in the industry packed into a slim and lightweight design.

It includes 10 hours of built-in memory and up to 200 hours of battery life on a single charge.  The M7 is designed to work with the Morpheus Recovery system, but it can also be used with:

  • ALL Bluetooth devices and apps

  • ANT+ devices made by Garmin, Suunto, Samsung and more

  • Cardio equipment that accepts ANT+ or Bluetooth heart rate transmission (such as Octane, Woodway, Technogym, and more)

Follow the steps below to start using the M7 to get the most out of your training.  You can also contact support with any questions not covered in the guide by clicking here to send an email to us.

Getting Started with the M7

1. Before you use the M7 for the first time, it may need to be charged before it can be turned on.

2. Please use a DC 5V power adapter to charge the M7

3. The LED shows red when charging, and green when fully charged.

Connect the M7 to the Morpheus Recovery app

**Note:  Before the M7 can store workout data in its memory, the time must be set by connecting it to the Morpheus recovery app.  Until you do this, it will not save workout data.

Note:  DO NOT connect the M7 directly to your phone through Bluetooth settings.

1. Put the M7 on to activate the heart rate sensor.  

2. Open the Morpheus Recovery app.

3. Press SYNC in the Morpheus menu to connect to the M7 and set its internal clock.


4. Press the blue CONNECT button at the bottom.  You will see a list of any nearby Bluetooth devices.  Choose your M7.  The number in the app will match the number on the back of your M7 transmitter.  Check the box next to your M7 and then press OK.

Note:  The M7 cannot be used for the Morpheus Recovery test.  Only the Morpheus M5 HRV armband can be used for the recovery test.  The M7 is designed specifically for training.

How to wear the M7

Making sure that you're wearing the M3 correctly is the most important step to getting consistent and accurate data.  There are three simple keys to wearing the M3 properly: placement, sensor orientation, and skin contact.

Proper placement:

The M7 should be placed directly underneath the pectoral muscles with the sensor over the bottom of the sternum as seen below. It's recommended to put the chest strap and then snap the sensor into place before each workout.

Sensor Orientation:

Important: In order to read accurately, the heart rate sensor must be snapped into the chest strap so that the Morpheus logo is right side up and could be read by someone facing you.  This means when you snap the sensor into the chest strap, the Left snap should be on the left side of your body and the Right snap should be on the right.  The back side of the sensor also has L and R next to the pins.

Good skin contact

To get the most accurate heart rate reading, the M3 needs to have good skin contact. First, you should add either water or electrode gel to the chest strap as shown below.  Electrode gel will provide the best contact possible.

Second, it's important to make sure the strap is tightened to fit snugly. If the strap is too loose, it may move around when you're training and lose skin contact.

Note: When you are not wearing the M7, always unsnap at least one side of the sensor from the chest strap to save battery life.  It will turn on automatically when you snap it back in and put it on.

M7 LED Color

Once the M7 is worn correctly, the LED will begin flashing white to indicate that it is searching for heart rate.

When it has found your heart rate, it will flash blue for 10 seconds. This lets you know the M7 is working correctly and recording your heart rate. 

When you take the M7 off or it's unable to monitor heart rate, it will beep three times to let you know it is no longer receiving or recording heart rate.

Connecting the M7 to your devices


To connect to a phone or tablet, DO NOT pair the M7 to the phone/tablet itself through Bluetooth settings.  Instead, make sure to pair directly to the app that you're trying to connect to.

The M7 connects via Bluetooth using the standard Bluetooth protocols.  You need to first put the chest strap on before connecting to a device or app. 

When connecting via Bluetooth, note that the M7 device name will show up including the unique ID number that can be found on the back of the sensor to avoid confusion with other devices that may be in the area.

If you're using the Morpheus Recovery app, you will connect in the “TRAIN” screen prior to your workout.

When training with your phone nearby, it is recommended that you turn Bluetooth off in the phone to prevent any inadvertent connection.


Many devices like Garmin, Suunto and more use the ANT+ protocol in order to transmit heart rate. To connect to an ANT+ device, follow the instructions of your device to find and pair to the M3.

Note that some devices support connections to the M3 by either Bluetooth or ANT+.


Morpheus doesn't see the M7 when I try to connect to it

If you're not seeing the M7 show up in your Bluetooth devices list when trying to connect to it, then it's generally caused by one of three things:

  1. You don't have the M7 in the correct place across your chest and/or you don't have good skin contact

  2. You have paired the M7 directly to the phone or to another app (or someone else nearby you has it paired to their phone or device).

  3. The battery has been fully discharged

Start by making sure you are wearing the band in the correct placement across your chest and you have good skin contact by ensuring the electrodes are moist.  You can also unsnap the sensor and then snap it back in.

Open Bluetooth settings in your phone or device and make sure it's not paired directly to the phone.  Also, check to see if you have any other apps open that might have automatically paired to it.

If you verify the above, then it might be that the battery has fully discharged.  The M7 can last about 200 hours of use from a full charge to fully discharged.

I'm losing connection during my workout

The most likely causes for the M7 to lose connection to your phone or other device are that either the strap is losing skin contact, or your device is out of range.

Tighten the strap to ensure that it will not move around during your workout. Add water or electrode gel to the strap to improve connectivity.

Make sure that your phone or other Bluetooth device is within 30ft of the M7. It can begin to lose connection if this range is exceeded, or if there are objects in the way of the signal.

My heart rates seem inaccurate

Inaccurate heart rates are almost always caused by poor skin contact and placement, or wearing the sensor upside down.  Follow the steps listed above to impact skin contact and make sure that the Morpheus logo is facing right side up so that someone facing you could read it.