ECG App comes up on watch, but won't detect my thumb and index finger

[LarryBassett]

I bring up my ECG app on the watch.  I get the instruction to place my thumb and index finger on the corners of the watch.  However, it does not detect my fingers.  I've restarted the watch with no luck, and cleaned the watch.  Any idea on how I can get it to work?

Moderator edit: updated subject for clarity

[JohnnyRow]

Maybe your fingers are too low on the watch.  They need to be up from the corners, almost to the watch face.  It's a narrow metallic ring between the face and the sides.

[DavidFitbit]

Hi @LarryBassett Welcome to the Fitbit Community! It's great to have you here! I'm glad to help you use the ECG feature on your Sense 2.

Thank you for your help @JohnnyRow 

Before you take your first reading:

1. Open the Fitbit app on your mobile, and log in to your Fitbit account.
2. From the "You" tab in the Fitbit app, find the ECG tile in the Health assessments section. Tap "Setup" and follow the instructions. After you complete the Heart Rhythm Assessment introduction, you can take an ECG reading.

To take an ECG reading:

1. Wear your Sense 2 snugly, but with enough room for comfort. It should sit a finger’s width above your wrist bone. The back of your Sense 2 should rest securely against your skin.
2. Sit down and open the ECG app on your Sense 2. Note that after you tap the ECG app icon, it can take several seconds for the app to load. During this time, the Sense 2 a black screen.
3. Follow the instructions on your Sense 2 to start the assessment.
4. Put your fingers on your Sense 2 as shown on the screen. Sit still while the test is in progress with your feet on the floor and forearms and wrists resting on a solid surface in front of you. Remain calm and relaxed, breathing regularly Continue to hold the contact points until the countdown is complete. Avoid touching other parts of the Sense 2 or your wrist.
5. When your results appear, swipe up to check the full report.

I hope this information will be helpful for you to successfully take your ECG!