Surfr.

Calibration

Surfr.AI

CALIBRATE YOUR DEVICE

To guarantee the most accurate tracking for your sessions you have to calibrate your device. The instruction here apply to the extensive calibration that is needed on some devices. We highly recommend to do this at home. See the FAQ on the bottom of the page for more help.

Calibrate watch?

Calibrate phone?

 

On most devices only step 1 is needed for calibration. On some devices step 2 till 6 (extended calibration) is also required. 

If this step fails with a ‘ frequency error’ please see the FAQ on the bottom of this page. 

 

On most devices only step 1 is needed for calibration. On some devices step 2 till 6 (extended calibration) is also required. 

If this step fails with a ‘ frequency error’ please see the FAQ on the bottom of this page. 

Step 1

Find a level (not tilted) surface such a floor or a kitchen counter with an adjacent wall in a 90 degrees angle. 

Place the device flat, press next  and wait for the beep. 

Step 2

Now lay the device on the left side while keeping it as still as possible. A good technique for that is to pull on the bracelet whilst pushing it against the wall. It’s important to keep it straight. Press next, and wait for the beep

Step 3

Now lay the device on the right side while keeping it as still as possible. A good technique for that is to pull on the bracelet whilst pushing it against the wall. It’s important to keep it straight. Press next, and wait for the beep

Step 4

Now keep the device vertical. Use your fingers to keep it steady and as straight as possible. Press next, and wait for the beep.

Step 5

Flip the device 180 degrees. Use your fingers to keep it steady and as straight as possible. Press next, and wait for the beep.

Step 6

For the final step you can press next first. Please the device up-side down, flat, and wait for the beep to finish the calibration.

Step 1

Find a level (not tilted) surface such a floor or a kitchen counter with an adjacent wall in a 90 degrees angle. 

Place the device flat, press next  and wait for the beep.

Step 2

Now lay the device on the left side while keeping it as still as possible. If your wall is perfectly upright you don’t even need to hold the device. But in case it falls over, use your hands to push it against the wall. Press next, and wait for the beep.

Step 3

Now lay the device on the right side while keeping it as still as possible. If your wall is perfectly upright you don’t even need to hold the device. But in case it falls over, use your hands to push it against the wall. Press next, and wait for the beep.

Step 4

Now keep the device vertical. Use your fingers to keep it steady and as straight as possible. Press next, and wait for the beep.

Step 5

Flip the device 180 degrees. Use your fingers to keep it steady and as straight as possible. Press next, and wait for the beep.

Step 6

For the final step you can press next first. Please the device up-side down, flat, and wait for the beep to finish the calibration.

Frequently Asked Questions

Why is this needed?

At Surfr we have the unique mission that we want to support all devices, all brands, and all platforms. To accomplish accuracy across the board we have developed a unique calibration method that boosts accuracy and consistency.

My device didn't ask for the extended calibration, can I still do it?

If your device didn’t ask for the extended calibration (step 2 till 6) it means that your device is fairly good by default, there is no need for extended calibration. 

Is it needed to redo calibration once in a while?

Based on our tests we don’t think so. But in case you start noticing problems, you can always try to re-calibrate via Settings. If that doesn’t help your issue, please contact us. 

I get a frequency error during calibration (Wear OS)

Surfr requires a frequency of at least 100 HZ. This means that we will receive 100 measurements per second to be able to do accurate height tracking. If you get stuck at lower frequencies your device might not be good enough for Surfr. Before you give up, make sure to try to increase your screen time-out of the device. 

1) Go to the settings of the Wear OS watch

2) Find Display.

3) Change the screen timeout to as long as possible (30 seconds or more). And also check the ‘always on Display’  check box if available.

4) Try the calibration again.

Once you finish the calibration you can set the screen timeout setting back to the desired/original values.