Before / after
Each dog is its own reference.
Every dog in the study, measured at home every day with Biotrack
Resting heart rate, breathing, HRV and arrhythmias, recorded by a collar the dog already wears, for the whole length of your studies, and a platform where your team follows the whole cohort.
- Published accuracy: 99.6% on heart rate against ECG, 98.6% on breathing.
- Nothing to ask of participants: the owner sets up the Biotracker at home, and the dog keeps it on.
- For research: a favorable rate, set with you for each study.
In a study, a dog's health is only measured at the visits, the Biotracker measures it every day
What is needed: following each dog remotely, every day, for the whole study. Resting vital signs make it possible, recorded at home by a collar the dog wears anyway.
At the visitsOne value per dog per visit, taken at the clinic
With the BiotrackerSeveral measurements a day, at home
No white-coat effect
Resting HR and RR are taken where the dog lives, at rest, not on the examination table.
Several times a day
The collar measures heart and breathing rates on its own in 2-minute windows, spread through the day whenever the dog is still, ideally asleep: about 80 minutes a day, more on request for a study.
For the whole study
One series per dog, day after day, from enrollment to the end of the study, instead of one value per visit.
Not a real-time monitor: measurements are recorded on the collar, synchronized in the background, and read as a trend over days and weeks. The chart illustrates the principle; it is not data.
In any clinical trial, cardiac or not, resting vital signs as a secondary endpoint, measured on their own
The Biotracker is added to a protocol without changing it: the measurement is automatic, the same for every dog, on the same days in every group.
Two groups, double-blind
Same measurements, same days, in both groups.
What you add
Resting HR, RR and HRV, activity and sleep: several measurements a day for each dog, instead of one value per visit.
A cardiac drug
The effect on resting HR and HRV, day after day; a decompensation seen coming between two visits.
See the clinical case ›A non-cardiac drug
A tolerance signal on HR and RR, and indirect effects: pain, anxiety, recovery show in activity, sleep and HRV.
A study design that uses it
A dog varies little around its own baseline, much more from one dog to another: the before / after design compares each dog with itself.
- Simple: the Biotracker is added to the protocol without changing it: automatic measurement, no extra visit, and the owner sets it up at home.
- Good value: a rate reserved for research, set with you for your study. Write to us: research@invoxia.com.
Five kinds of study where home measurement changes the endpoint, drug trials first
For each: what you measure, and what it changes compared with the visits alone.
Trial of a cardiac drug
- You measure
- Resting HR and RR, HRV and atrial fibrillation, before and after starting treatment or changing a dose, and from one stage to the next.
- It changes
- The effect is judged on repeated measurements at home, and decompensation is seen coming between two visits.
Trial of a non-cardiac drug
- You measure
- The same resting vital signs, activity and sleep, before and after treatment, or between a treated group and a placebo group.
- It changes
- A cardio-respiratory tolerance signal, and indirect effects the visit does not see: pain, anxiety, recovery.
Behavior, stress and anxiety
- You measure
- Sleep interruptions and their timing, daytime versus night-time sleep, chronic stress through HRV.
- It changes
- Subjective observation becomes a measured fact. A German clinic has made it a rule: every dog referred for a behavioral diagnosis wears a Biotracker for at least 14 days.
Pain and recovery
- You measure
- Resting HR and RR returning to baseline, sleep interruptions, activity resuming, classified every 5 seconds, and HRV.
- It changes
- Recovery is followed at home, every day, without bringing the dog back to measure it.
Reference values and aging
- You measure
- Each dog's baseline against the published reference values by age, sex, weight, breed, circadian rhythm and season (AI-COLLAR, 703 dogs).
- It changes
- A group is described on values measured at home, season included: without a reference, a higher RR in summer can pass for a deterioration.
In all five cases, participants have nothing to do
The collar measures on its own; the data arrives in your dashboard, and you read it when you choose to, or when an alert prompts you. Compliance does not rest on the participant's motivation: the collar stays on for its everyday features (GPS, walks, sleep, the evening report, a conversation with the dog).
Biotracker: HR, RR, HRV and arrhythmias, from a standard accelerometer
Seismocardiography: one AI on the collar, one AI in the cloud on the raw signal. No contact electrode, no rigid housing, nothing for the owner to do.
Published accuracy
99.6%
heart-rate accuracy, against ECG
98.6%
respiratory-rate accuracy, against annotated video
Worn, not just bought
A sensor measures nothing if the dog doesn't wear it. On sale to owners for two years, the Biotracker is kept for the GPS, the walk log, the sleep score and the story of the day: the cardio-respiratory measurement rides on a collar the dog was already wearing.
>20h
a day, every day: how long most dogs actually wear the collar
25%
of dogs wear it more than 98% of the time
331days
on their dog so far, on average, for current users
Invoxia installed base, all generations of health collars.
What it measures
HR, RR, 8 HRV indices, atrial fibrillation, activity and sleep. GPS included.
When
Activity and sleep are computed every 5 seconds. Cardio-respiratory vital signs are measured in 2-minute windows, at regular intervals, when the dog is still, ideally asleep: about 80 minutes of measurement a day. For a study, the windows can be brought closer together on request (beyond 80 minutes a day) through a server-side setting.
How the data arrives
The Biotracker has its own cellular connection (LTE-M, SIM and data included): no Wi-Fi to set up, no phone to keep nearby. Recorded on the collar, synchronized in the background.
Calibrated for dogs, with published accuracy, and data used in peer-reviewed veterinary studies (Frontiers in Veterinary Science, 2025). The Biotracker is not a certified medical device.
Biotrack measures 38 metrics per dog, day after day
The full list, taken from the Biotrack demo and grouped by family of measurements.
38metrics per dog, day after day
Heart and respiratory rate
13 metricsResting heart rate and respiratory rate (all day, day, night), with their standard deviation, minimum and maximum · AFib, the atrial fibrillation risk (%) · tachycardia and bradycardia, and their number of episodes.
HRV
5 metricsRMSSD, SDNN and normalized RMSSD (all day, day, night and at wake-up) · VVTI · triangular index.
Arrhythmias
8 metricsThe Poincaré plot, day by day · the Poincaré angles In, Ex, InEx and their ratio · the minimum RR interval (ms) · the number and duration of pauses.
Activities
7 metricsExercise duration, in minutes a day · duration by gait: walk, trot, run · distance · calories · barking.
Sleep
5 metricsSleep score (0–100) · sleep duration · bedtime · wake-up time · sleep interruptions.
Dog by dog, and across the whole cohort
The “Details” table lines these metrics up for every dog, with 10-day averages and the 30-day trend; each curve shows over 10, 30 or 90 days, or the whole history. Eight of them carry alert thresholds set for each dog. All the data visible in Biotrack, and more if your study needs it, can be exported as a spreadsheet for your analyses.
Biotrack, the platform where your team follows the study
Smart alerts
Prioritized by AI against each dog's own baseline, with email notifications.
Trends, not spikes
A sustained rise in resting RR over days or weeks: you see the drift, and you decide whether a visit should come sooner.
Annotated events
Enrollment, treatment, dose change, visit: the effect reads before and after, dog by dog.
AI assistant and reports
PDF follow-up reports, drafted by AI and editable by the veterinarian.
A published measurement, and researchers to assess it
The Biotracker is evaluated and used by veterinarians and researchers, in published or open-access work, with a scientific board.
59bpm
AI-COLLAR: the study redefining cardiac norms
Frontiers in Veterinary Science, 2025
Led by Prof. Valérie Chetboul (Alfort National Veterinary School) with Invoxia's teams between 2022 and 2025, on the resting cardiac values of 703 dogs in 29 countries.
Read the study ›bioRxiv, 2023, preprint
Measurement accuracy, compared with the electrocardiogram
On 40 dogs: 99.6% accuracy for heart rate, 98.6% for breathing.
Read ›Veterinary thesis, 2025 · Vet IN Tech NUManima 2026 award
Recovery in elite working dogs
Two years of monitoring Malinois from an elite unit, by Alice Ruellan under the supervision of Prof. Valérie Chetboul. A pilot study.
Read ›Scientific board
Professor Valérie Chetboul
Head of the Cardiology Department at the Alfort Veterinary School (France)
Dr. Daniel Promislow, PhD
Canine longevity researcher at the University of Washington (USA)
Sydney Moïse, PhD
Professor of veterinary cardiology at Cornell University (USA)
A one-time set-up, then the same cycle for every dog in the study
Light logistics, nothing to install on your side: the owner sets up the Biotracker at home, like any buyer.
Once: the set-up
Account
The laboratory creates its account on biotrack.invoxia.ai.
Devices
The laboratory orders the study's Biotrackers, on the terms agreed with Invoxia.
Linking
Invoxia links the ordered Biotrackers to the laboratory's Biotrack account before shipping.
For each dog in the study
For each dogas many as the study enrolls
“Your dog will wear a Biotracker during the study.” at the visit
Enroll
At the enrollment visit, the investigating veterinarian explains to the owner what the Biotracker measures and what they will have to do: set it up, then nothing.
Hand over
The owner leaves with one of the laboratory's Biotrackers, already linked to the study account.
Set up
At home, the owner downloads the Invoxia app and sets up the Biotracker in a few taps, like any buyer. No time taken from your team.
Monitor
The dog appears on its own in your dashboard: vital signs day after day, alerts when something drifts.
Report
At the end of the period, Biotrack prepares a report for each dog, AI-assisted; the curves stay available dog by dog.
A few minutes at enrollment, then the measurements arrive on their own.
For research, a rate set with you
Every study is different: we set a favorable rate with you, based on the number of dogs, the duration and what you measure. The device is the one owners buy, and it is set up the same way.
A rate suited to your study
Based on the number of dogs, the length of the study and what you measure, we set favorable terms together, reserved for research.
Quoted on request: research@invoxia.com
What is included
- The Biotrack platform for the whole study team
- Biotrackers linked to the laboratory's account before shipping
- Technical support: Invoxia answers the owners
- Training for your team
- Follow-up by the Invoxia team's veterinarian
Why a dedicated rate. It is in our interest that the measurement serves research: every published study that uses it strengthens the evidence everything else rests on.
See the clinic offers, for comparison ›Frequently asked questions
- No. It is a collar calibrated for dogs, with published accuracy (99.6% on heart rate against ECG, 98.6% on breathing, bioRxiv 2023), whose data has been used in peer-reviewed studies. It is not certified as a medical device: in a protocol, it adds an endpoint followed at home, alongside the clinical examinations.
- Activity and sleep are computed every 5 seconds. Heart and respiratory rates are measured in 2-minute windows, at regular intervals, when the dog is still, ideally asleep (not while it pants or fidgets), for about 80 minutes of measurement a day. For a study, these windows can be brought closer together on request, beyond 80 minutes a day, through a server-side setting. It is not a real-time monitor: measurements are recorded on the collar, synchronized in the background, and read as a trend over days and weeks.
- It depends on your protocol: number of dogs, duration, measurements. We offer a favorable rate reserved for research, set with you: write to us at research@invoxia.com.
- Clip the Biotracker onto the usual collar and pair it in the Invoxia app, in a few minutes, like any buyer, then charge it every 7 to 15 days depending on use. Invoxia answers their technical questions.
- 38 metrics per dog (resting heart and respiratory rate, HRV, arrhythmias, activity, sleep) in the Biotrack dashboard, dog by dog or across the whole cohort, with alerts against each dog's own baseline and PDF reports. A demo account takes under a minute to create, with no commitment.
- Yes. All the data visible on the Biotrack platform can be exported in spreadsheet format for your statistical analyses, and more if your study needs it: write to us at research@invoxia.com.
Let's talk about your study
Tell us how many dogs, for how long, and what you want to measure: we will offer you a rate suited to your study. You can create a Biotrack demo account right now, in under a minute and with no commitment.