Support
Need help with Respirix? Find answers to common questions below.
Frequently Asked Questions
How do I connect a heart rate monitor?
Go to Settings > Heart Rate Monitor and tap "Scan for Devices". Make sure your HR strap is worn and active. Respirix supports any Bluetooth Low Energy heart rate monitor that follows the standard Heart Rate Profile.
What is HRV coherence?
Heart Rate Variability (HRV) coherence measures how synchronized your heart rhythm is with your breathing pattern. A higher coherence score indicates better alignment between your cardiovascular and respiratory systems.
Can I create custom breathing patterns?
Yes. On the Breathe tab, switch to "Custom" mode to configure individual durations for inhale, hold in, exhale, and hold out phases. You can set each phase from 0 to 12 seconds.
Does the app work in the background?
Yes. Voice cues and haptic feedback continue when the screen is off or when you switch to another app. The session will complete as configured.
Is my data stored anywhere?
All data stays on your device. Respirix does not transmit any data to external servers. There are no accounts, no analytics, and no tracking. See our Privacy Policy for details.
I feel dizzy during a session. What should I do?
Stop the session immediately and breathe normally. Dizziness can occur with certain breathing patterns, especially those with long holds. Start with shorter durations and work up gradually. If symptoms persist, consult a healthcare professional.
Heart Rate Strap Troubleshooting
Heart rate chest straps detect tiny electrical signals through the skin. During rest, lying down, or slow breathing, the signal can weaken and cause disconnections. This is a physiological issue, not a software bug. Respirix will automatically reconnect and resume monitoring when the strap becomes available again.
Why does my heart rate strap disconnect during breathing exercises?
During rest and slow breathing, your skin conductivity drops (less sweat), your heart rate decreases, and the electrical signal from your heart becomes smaller. Many sports-focused straps are tuned for exercise conditions and will stop transmitting when the signal gets too weak. This makes breathing exercises and rest the hardest scenario for chest straps.
How can I prevent my heart rate strap from disconnecting?
These fixes are ordered by effectiveness:
- Wet the electrodes:Use ECG/ultrasound gel or water on the electrode pads. This is the single most effective fix and often completely eliminates dropouts.
- Replace the battery:Use a fresh battery even if the strap reports "OK". Coin cells can report adequate voltage but fail under continuous BLE transmission.
- Tighten slightly and position lower:A snug fit slightly below the chest muscles improves contact.
- Try semi-reclined instead of flat:Side-lying or semi-reclined postures often work better than lying flat on your back.
- Stabilize Bluetooth:Disable Low Power Mode, keep the app in the foreground, and disconnect other Bluetooth devices.
Which heart rate straps work best for breathing exercises?
Recommended for low-movement use:
- Polar H10 / H9 (strongest analog front-end)
- Garmin HRM-Pro Plus (improved low-signal handling)
- Movesense Medical / HR+
These have stronger analog front-ends and more tolerant firmware that maintains ECG lock at low signal amplitudes.
More likely to disconnect during rest:
- Garmin HRM-Pro / HRM-Dual (optimized for running/cycling)
- Wahoo Tickr (many generations)
- Generic gym-bundled BLE straps
These are excellent for sports but may lose signal when you're lying still with low heart rate.
How do I perform a full Bluetooth reset?
If your strap connects briefly then drops repeatedly:
- Forget the strap in your phone's Bluetooth settings
- Unpair the strap in Respirix (Settings → Unpair)
- Remove the strap battery for 30 seconds
- Reinsert the battery
- Re-pair only inside Respirix
This clears stale encryption keys that can cause silent disconnections.
How does Respirix handle disconnections?
Respirix automatically attempts to reconnect when a heart rate strap disconnects. It monitors for stalled connections (connected but no data), resubscribes to notifications, and validates the connection when the app returns to the foreground. No manual intervention is needed. Just keep the strap on and the app will reconnect when the strap resumes transmitting.
When should I replace my heart rate strap?
Consider replacement if: a new battery plus electrode gel plus a full reset does not help, disconnects occur across multiple phones or apps, the strap fails even while sitting upright, or dropouts happen during movement. For breathing and HRV apps, Polar H10-class sensors significantly reduce connection issues.
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