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Support

LEEK Pulse Support

Get the app, user guide and help for your LEEK Pulse Pro. Everything you need for setup and everyday use.

Download the app

The app connects to the band over Bluetooth, shows readings and history, and installs firmware updates.

Android only

The LEEK app is available for Android smartphones only (Android 8.0 or later). The band cannot be used with an iPhone.

Please note: the app is called LEEK

There is no app named “Syrax Pulse” in the Play Store. Your band is set up through the LEEK app, built in cooperation with Syrax. So look for LEEK in the store.

Get it on Google Play

Android 8.0 or newer · Bluetooth 5.0 · around 18 MB

User guide

Setup, how to wear it, readings and care – as a PDF to download.

Quick access
Open guideen

More languages are being added step by step. Planned versions are marked in the list and cannot be downloaded yet.

Support

Safety information

Please read before first use. The band is a fitness device, not a medical device.

The readings are meant for everyday orientation and do not replace a medical diagnosis. Do not base medical decisions on them alone.

  • If you have a pacemaker, an implanted defibrillator or another active implant, consult your doctor before use.
  • Wear the band loosely enough that it can be moved about a finger's width. Wearing it too tight for long periods can irritate the skin.
  • Take the band off if you notice redness, itching or swelling, and let the skin dry.
  • Charge only with the supplied cable. A damaged or opened battery must not be used any further.
  • IP68 means protection against immersion, not against saunas, steam rooms, pressure washers or diving.
  • Not suitable for children under 12. Small parts can be swallowed.
  • At the end of its life, dispose of the device at a collection point for electrical waste, not in household refuse.

FAQ

Frequently asked questions

The answers people ask for most often.

The band will not connect to the app.

Restart your phone and the band first – that clears around 95 percent of all connection problems. If it persists: make sure Bluetooth is on and the band has charged for at least 15 minutes. Remove any existing pairing in your phone's Bluetooth settings and start pairing again from inside the app – the band is not paired through the system settings.

How long does the battery really last?

The Pulse Pro reaches up to 30 days. Continuous heart rate measurement at short intervals, frequent notifications and regular training shorten that noticeably.

How accurate is the sleep measurement?

Sleep phases are derived from movement and heart rate variability. That works well for observing trends over weeks, but it does not match the accuracy of a sleep laboratory.

Where is my health data stored?

On your own devices only. There is no cloud synchronisation: raw data stays on the band until the app collects it over an encrypted connection, and the analysis happens on your phone. Your health data never reaches a server at any point – not even ours. You can export your data from the app at any time, and the file then stays with you.

How do I install a firmware update?

The app reports available updates automatically. Keep the band within range of the phone during the transfer and charge it to at least 50 percent first. An update takes two to ten minutes depending on its size.

Can I wear the band in the shower or while swimming?

Showering and swimming are fine, the housing is protected to IP68. Saunas, steam rooms and diving are excluded, because heat and pressure strain the seals.

The band has stopped responding. What now?

First hold the button on the band for three seconds. If there is no reaction, leave the band on the charging cable for 30 minutes, then press and hold the button for three seconds again. If that fails too, write to us with your model and serial number – we will look into it under warranty.

Contact support

Write to us with your model, serial number and a short description. The more precise the details, the faster the fix.

Next step

Question not covered?

Write to us with your model and serial number. You will usually hear back within two working days.