Bluetooth Devices4 min read

Bluetooth Device Troubleshooting

Fix common Bluetooth pairing and connection issues in VitalSync, including devices not appearing in the scanner, dropped connections, and readings not transferring.

For informational and educational purposes only. VitalSync is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. All content presents health data against established clinical reference ranges. Always consult a qualified healthcare professional for medical advice, diagnosis, or treatment.

Bluetooth Device Troubleshooting

Device Not Appearing in the Scanner

Check Bluetooth is on — Settings > Bluetooth > On.

Check VitalSync has Bluetooth permission — Settings > VitalSync > Bluetooth > Allow.

Put your device in pairing mode — refer to your device's manual. Most devices require you to hold a button until an LED flashes.

Move closer — keep the device within 1 metre of your iPhone during initial pairing.

Restart Bluetooth — toggle Bluetooth off and on in Control Centre, then retry.

Device Appears But Will Not Connect

Remove the device from iOS Bluetooth settings — Settings > Bluetooth, tap the (i) next to your device, tap Forget This Device.

Remove the device from VitalSync — Settings > Bluetooth Devices > swipe left > Remove.

Restart VitalSync and re-pair from scratch.

Reading Not Transferring After Connection

Ensure you take the measurement after the device shows as connected in VitalSync (not before).

Some devices require you to tap a Sync or Transfer button after measuring.

Check that the reading appears on your device's display — if the device itself did not register a reading, nothing will transfer.

Connection Drops Mid-Reading

Keep your iPhone and device within 3 metres.

Avoid areas with heavy wireless interference (e.g., near a microwave or crowded Wi-Fi environment).

Ensure your device battery is above 20%.

Readings Appear Twice

If a device syncs via both BLE and Apple Health/HealthKit, you may see duplicate entries. Disable one source: either turn off HealthKit write permission for that metric in the device's companion app, or disable BLE in VitalSync for that device.