TeltoHeart First Start

Contents of the box

Note: TeltoHeart is supplied with a charging dock powered via USB Type-C connector at 5 Vdc.

Note: TeltoHeart is intended for users aged 22 and above.

How to wear TeltoHeart

Secure TeltoHeart around your left hand lower arm, 1 cm above your wrist bone, as illustrated. Avoid fastening it too tightly or too loosely.

How to charge TeltoHeart

Insert a USB Type-C cable into the charging dock. Place TeltoHeart on the charging dock included in the packaging. Insert the charging unit into the power source.

Note: The battery life lasts for at least 24 hours.

Overview

Overview

Electrodes for ECG reading

Electrodes

Start using TeltoHeart

How to use TeltoHeart

Powering on

	Press and hold the side button for at least 10 seconds until the device screen powers on.
	On first power-on, TeltoHeart will prompt you to download the TeltoHeart application.

Your device name will appear on the TeltoHeart screen so you can locate it in the app.

Visit TeltoHeart to download the app, scan the QR code below, or search for TeltoHeart by Teltonika Telemedic on the App Store or Google Play.

Note: If your mobile OS is older than the version described in the guide, the app may not be visible in the store.

Scan to download from the Apple Store

Scan to download from Google Play

After installing the app, tap to open it.

Registration

There are two registration options.

Register as a user

	Open the TeltoHeart application.
	Tap CREATE ACCOUNT.

	Fill in the required information.
	Tap Continue to proceed.

Enter your phone number.

Enter the verification code sent via SMS to your phone.

Fill in the remaining details to complete registration.

Account created successfully.

Receive an invitation

Sign in using the email address and password provided by your clinic. Tap Log in to proceed.

The app will prompt you to change the default password to one of your choice.

Fill in the remaining details to complete registration.

	Review and accept the Terms and Conditions and Privacy Policy.
	Once signed in, grant Bluetooth permissions when prompted. Tap Allow.

How to pair TeltoHeart with the mobile application

Tap PAIR YOUR DEVICE to begin the pairing process.

Accept Bluetooth permissions when prompted.

The app will scan for nearby devices.

Select your TeltoHeart by tapping its name.

TeltoHeart will display an incoming pair request.

Enter the passkey shown on your TeltoHeart into the Bluetooth pairing request window in the app.

TeltoHeart will confirm a successful pairing.

Keep the TeltoHeart application running in the background at all times to ensure uninterrupted data transfer.

Note: Closing the app will stop data transfer to the TeltoCare platform.

Recording an ECG

Recording an ECG

Before you start

• TeltoHeart uses photoplethysmography (PPG) and electrocardiogram (ECG) to measure and record physiological parameters.
• To transmit ECG data, ensure TeltoHeart and the mobile app are paired on iOS 14+ or Android 10+.
• Open the ECG function in the TeltoHeart app to activate ECG recording.

Setup

• Push the side button once to open the ECG recording feature.
• Follow the on-screen instructions.

How to take an ECG recording

	Follow the on-screen instructions and tap NEXT.
	Sit down. Ensure TeltoHeart is on your left wrist, strapped firmly but comfortably.

Place and hold the abdomen electrode on the left side of your abdomen at belly-button level.

While holding the abdomen electrode in place, rest your right hand finger on the finger electrode above the screen.

	Select 1-LEAD or 6-LEAD recording. Keep your finger on the electrode and remain still throughout.
	The recording lasts 60 seconds.
	Once finished, Recording completed will appear on the TeltoHeart screen.

Note:

• Keep the TeltoHeart app running in the background to allow data transfer.
• ECG recordings cannot be performed if battery charge is below 10%.

How to view data

Note:

• Data synchronises hourly. Measurements may take a few minutes to appear on the platform.
• ECG and Atrial Fibrillation data transfer instantly after an event or measurement.
• You can trigger a manual sync by tapping the SYNC NOW button.

	Open the TeltoHeart application.
	Enter your login credentials.

	Tap Sign in to access your account.
	You will be directed to the Dashboard, where all health data is displayed.
	Locate the ECG section.

	Review the ECG recordings in the Dashboard.
	If ECG data is missing, use SYNC NOW in the app to manually trigger a data transfer to the TeltoCare platform.

Dashboard metrics

Heart Health Score

The Heart Health Score is calculated from three components:

• Steps (S)
• Heart Rate (H)
• AFib Events (A)

For more detail, tap Learn more about Heart Health Score in the app.

Atrial Fibrillation

TeltoHeart continuously monitors your pulse rhythm via light-based sensing. If the heartbeat pattern becomes consistently irregular in a way typical of atrial fibrillation, the system flags a possible AF episode and recommends taking an ECG. AF events can be reviewed in the Possible AFibs detected tab.

Events

The Events tab displays logged health events:

• High Heart Rate
• Low Heart Rate
• Atrial Fibrillation event

Electrocardiogram (ECG)

TeltoHeart records your heart's electrical activity through skin-contact electrodes and reconstructs it into 6 different ECG views. Multiple perspectives detect rhythm problems more accurately than single-lead wearables.

Download an ECG report

Tap Download to save your ECG report.

Heart Rate

TeltoHeart measures heart rate by shining light into your skin and tracking blood flow. Each pulse creates a waveform peak, and the time between peaks is used to calculate beats per minute. Heart rate is only measured when there is no movement present, for maximum accuracy.

Steps

TeltoHeart counts steps using a built-in motion sensor that detects wrist movement, identifying individual steps and continuously updating your daily step count.

AFib Burden

AFib burden shows what percentage of your monitoring period was spent in atrial fibrillation. It is calculated by dividing total AFib time by total monitoring time.
Example: 1 hour of AFib in a 24-hour period = ~4.2% AFib burden.

Sleep Quality

Sleep Quality is estimated from nighttime heart rate patterns. The score reflects how much your heart rate decreases during sleep and how low it becomes before waking, indicating the level of overnight recovery.

Stress Level

Stress Level is estimated from heart rate variability measured by ECG. Lower variation between heartbeats indicates higher stress; higher variation indicates better recovery.

TeltoHeart application status icon

	Connected and paired — TeltoHeart is connected and actively syncing data with the app.
	Disconnected — TeltoHeart is paired but not currently connected. Ensure the device is charged, turned on, nearby, and that Bluetooth is enabled.
	Not paired — TeltoHeart has not yet been paired with the application.

How to power off or restart TeltoHeart

	From the main screen, swipe up and navigate to Settings.
	Tap Power and hold the POWER OFF button to turn off TeltoHeart.

Cleaning instructions

Technical specifications

Body

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Dimensions (W × L × H)	40.5 × 47 × 14.7 mm (1.6" × 1.9" × 0.6")
Weight	52 g
Main CPU	nRF5340 — 2× ARM Cortex M33 cores (application + network)
Platform (OS)	Zephyr RTOS

Display

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Type	LCD TFT
Size	1.3"
Resolution	240 × 240 px
Brightness	250 NITS
Cover lens	Corning Gorilla Glass 3
Surface hardness	>8 H
Display area	547.56 sq mm

Memory

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Capacity

128 Mb

Connectivity

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Bluetooth version	5.3
Remote access	Cloud
Operating frequency	2402 – 2480 MHz
Max. output power	3 dBm

Features

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• ECG sensors for electrocardiogram
• PPG sensors for AFib detection
• Heart rate monitoring (when inactive)
• Low / High heart rate alerts
• Cloud-based firmware updates, Bluetooth configuration
• Water resistant: 1 m for 30 minutes — IP67
• SpO2: 70–100%; ±4% (excluding high motion artifacts and low perfusion cases)

Power supply

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Battery	Built-in Li-Po 410 mAh / 1.56 Wh (non-replaceable)
Charging voltage	5 V ⎓
Operating voltage	Internal: 3.8 V ⎓ · External: 5 V ⎓
Max. input current	0.5 A

Sensors & components

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• Accelerometer
• Gyroscope

Buttons

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Side button — Turn on, Restart, Back

Straps

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Material	Silicone rubber with integrated stainless-steel electrode
Size S	Fits wrist 14–20 cm
Size M	Fits wrist 16.5–22 cm
Size L	Fits wrist 19–24.5 cm

* Strap size depends on the purchased set.

Supported peripherals

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Accessory	TeltoHeart charging dock
Wall charger compatibility	Any CE-marked 5 V⎓/1A charger with USB Type-A connector
Cable compatibility	Any CE-certified USB-A to USB-C cable
Android	Android 10 or later with Google Play Services
iOS	iOS 14 or later
Bluetooth compatibility	Bluetooth v5.0+ in 2.4 GHz band with SMP protocol

⚠ MRI / CT: Compatibility with MRI or CT was not checked. Use of this device in an MRI or CT environment is prohibited.

Conditions for use

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Operating temperature	−10 to +45 °C
Charging temperature	0 to +45 °C
Storage temperature (1 month)	−20 to +35 °C
Storage temperature (6 months)	−20 to +30 °C
Humidity (extreme low / high)	15% / 90%
Atmospheric pressure (extreme low / high)	700 hPa / 1060 hPa

PPG / ECG measurement specifications

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PPG function	Continuous heart rhythm and atrial fibrillation monitoring
ECG features	6-lead Electrocardiogram
ECG electrode locations	Bottom surface · Top surface · Wrist strap
ECG electrodes	Lead I and Lead III directly measured; Lead II, aVL, aVR, aVF calculated
AFib method	Non-invasive — PPG (Bio-optical sensing) + 6-lead ECG
Heart rate range	40–200 BPM
Heart rate accuracy	±5 BPM

Safety

Contraindications, Cautions, Warnings and Notes

CONTRAINDICATIONS

	Users with pacemakers, implantable cardioverter-defibrillators (ICDs), or other active implanted medical devices that could stimulate the heart.
	Users with other active implantable or non-implantable medical devices that may interfere with the device's electromagnetic field.
	Not intended for users with dementia or other cognitive inability to use the device unless supervised.
	Users with conditions restricting their ability or willingness to use the device as intended.
	Users with exaggerated emotional instability, elevated anxiety disorders, panic attacks, or other mental disorders that may be triggered by the device.
	Absence, severe deformations, or paralysis of one or both upper limbs.
	Allergy or increased sensitivity to the device materials.
	Compromised local tissue conditions (wounds, fractures, ruptures, etc.) at the contact location.

CAUTIONS

Handling and care

	Do NOT use on wounds — this may cause infection and pain. Treat wounds first.
	Patients with skin photosensitivity conditions should not use the device.

Warranty and claims

	Any third-party modifications will void the warranty.
	Failure to use or maintain the device as instructed may exclude warranty claims.

Connectivity and data management

	If data cannot be saved locally on your smartphone, clear the cache and try again.
	The device requires a stable internet connection to function properly.

Environmental and safety precautions

	Avoid sandy environments. Do not submerge in salt water or conductive liquids. Do not use in MRI or CT environments.
	TeltoHeart is not intended for underwater use.

Device usage and limitations

	Do not use near strong electromagnetic fields or ultrasound equipment.
	Do not use during strong vibration (e.g. rammer compactors, hammer drills).
	For use on intact skin only. Do not wear over moles, birthmarks, psoriasis, or skin defects.
	Intended for adults aged 22 and older. Not for use during medical procedures (MRI, diathermy, lithotripsy, defibrillation, surgery).
	If heating occurs, stop using immediately. Do not expose to temperatures above 45 °C.
	Do not apply paint or stickers; do not cause mechanical shock or excessive pressure.
	Do not use corrosive chemicals for cleaning. Keep the docking station magnetic connection free of metallic bodies.
	Oily, muddy, or contaminated skin will worsen ECG/PPG quality. Clean skin before recording.
	Darker skin tones on the wrist may affect PPG performance. Factors including motion, tattoos, low blood flow, body fat, body hair, and dry skin may reduce recording quality.
	Do not self-diagnose or self-medicate based on device readings. Readings are potential findings, not a diagnosis. Always consult a qualified physician.
	After unpairing or resetting TeltoHeart, all data (settings, ECG, HR) is permanently deleted.

WARNINGS

Battery safety

	If the device starts heating, stop use immediately to prevent battery or component damage.
	Do NOT short-circuit charging contacts. Contact with metal objects (coins, clips, keys) can cause short-circuits and damage the device.

Charging safety

	Use only USB Type-C cables compliant with USB 2.0 or later and applicable safety standards. Using damaged cables or charging with liquid/moisture present can cause electric shock or fire.
	Ensure the cable or dock is fully inserted into the power adapter before connecting to an outlet. The Li-Po battery must be serviced by Teltonika Telemedic or an authorised provider only.

Environmental and user safety

	Do NOT use outside operating temperature range (e.g. in a sauna).
	Comply with all regulations on mobile device usage while driving. Safe vehicle operation is always the first priority.
	Exaggerated movement impairs measurement accuracy. Users with bruised skin, cuts, scars, excessive body fat, or very dry skin may experience reduced sensor performance.

NOTES

• Device operating temperature: −10 to +45 °C. Do not use outside this range.
• Keep device electrodes clean for best performance. Do not take recordings if electrodes are dirty.
• Usage in rain or very humid environments is not recommended.
• TeltoHeart application and TeltoCare share the same login credentials.
• Keep the TeltoHeart app running in the background to allow continuous data transfer.
• ECG recordings cannot be performed if battery is below 10%.
• Do not take recordings during physical activity.
• Do NOT reset the device during a firmware update. Charge fully before initiating updates.
• The system will not back up data or send information to medical experts without an internet connection.
• Device shall be used on the left hand wrist only.
• Do not share your password with anyone. Sign-in details are cleared on logout.
• After deleting your account, all data will be lost. Support cannot restore deleted health data after 14 days.
• Implanted devices (pacemakers, defibrillators) may react to magnets and radio signals — maintain a safe distance from the charging equipment.
• Patient health information from the device represents potential findings, not a diagnosis.

Warranty

Warranty conditions and term shall apply in accordance with agreed conditions between you and your supplier. It is important to carefully read and follow all information for users (including the quick start guide, technical specifications, and user manual) and the terms and conditions provided by the manufacturer. Failure to adhere to these guidelines may result in malfunctions or damage to the product, for which the manufacturer cannot be held responsible.

Equipment symbols

	Manufacturer TELTONIKA TELEMEDIC UAB Ukmergės g. 120-1, LT-08126 Vilnius [email protected] https://www.teltonika-telemedic.com
Consult instructions for use	Protection against ingress of water or particulate matter
Type BF applied part

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Environmental conditions

Temperature limit

Humidity limit

Atmospheric pressure limit

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Certifications

	FCC ID: 2BAIF-ECG200	IC ID: 27304-ECG200

Additional information

Product page

https://teltonika-telemedic.com/products/teltoheart

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Update changelog

View update changelog

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TeltoCare manual

View TeltoCare manual

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Documentation

English

	TeltoHeart User Manual (EN) — Updated: 2024-08-08
	TeltoHeart Quick Manual (EN) — Updated: 2024-09-06
	TeltoHeart Short Instructions (EN) — Updated: 2024-06-18
	TeltoHeart Flyer — Short version (EN) — Updated: 2024-07-11
	TeltoHeart Flyer — Long version (EN) — Updated: 2024-02-07
	TeltoHeart Datasheet (EN) — Updated: 2025-02-14

Lithuanian

	TeltoHeart Quick Manual (LT) — Updated: 2024-09-06
	TeltoHeart Short Instructions (LT) — Updated: 2024-06-18
	TeltoHeart Flyer — Short version (LT) — Updated: 2024-09-25
	TeltoHeart Datasheet (LT) — Updated: 2025-02-17

Polish

	TeltoHeart Quick Manual (PL) — Updated: 2024-09-06
	TeltoHeart Short Instructions (PL) — Updated: 2024-07-10

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TeltoHeart mobile application

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Frequently asked questions (FAQ)

TeltoHeart FAQ

• TeltoHeart is not turning on
• TeltoHeart is not sending data
• Incorrect time or date
• Heart Rate signal missing
• Failure to detect wrist
• Paired device prior to registering / logging in
• Failed to pair the device
• How to turn on TeltoHeart?
• Where can I see the data?
• How to change the language?
• How to set the heart rate frequency?
• Why is my ECG bad / unreadable?
• Why are there no data on the TeltoCare platform?
• What to do if it shows an AFIB message?
• Why does the battery drain quickly?
• Why did the ECG recording stop by itself?
• How to set notifications?
• Does the bracelet automatically record ECG?
• How does the bracelet notify about AFIB?
• TeltoHeart application cannot find a firmware update

TeltoCare FAQ

• How to create a patient account?
• Where to see patient data?
• How can a patient create an account?
• How to verify a patient?
• How to print / download ECG?
• Is there a caliper function?
• Where to see AFib notifications?
• Will I see all patients or just my own?
• How to delete a patient?
• Are patient data saved after deletion?
• How to transfer a patient to another doctor or clinic?
• Forgot password for TeltoHeart app or TeltoCare platform?
• No Atrial Fibrillation data
• Cannot see my data
• Incorrect ECG data

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Promotional material

TeltoHeart Promotional material

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Certificates

Certificate	Link
CE/RED (EU)	View
UKCA (UK)	View
FCC (USA)	View
CE MDR (EU)	View
PPB	View
KZ	View
RoHS	View
REACH	View
Regulation (EU) 2023/1542	View

All newest certificates can be found on our Certifications and Approvals wiki page.