A digital heart
on your sleeve

SamaBeat Band advanced cardiac wearable for AI-powered heart monitoring and emergency response

5 on-wrist sensors to track 25+ parameters on your baseline, not a population average. Alerts caregivers and emergency services without the Internet.

Clinical-grade sensorsWorks in 2GAI cardiac predictions
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Global Ecosystem

Every metric.
Every moment.

Display
Estimated Blood Pressure

PPG + BioZ fusion. <3.3 mmHg MAE. Continuous, cuffless, complexion-agnostic.

Display
Heart Rate

+/-1 BPM accuracy. Real-time tachycardia and bradycardia detection with instant alerts.

Display
SpO2 / RR

Multi-wavelength PPG. Blood oxygen +/-2%. Continuous respiratory rate estimation.

Display
Emergency SOS

30-second confirmation. Auto-alerts loved ones and emergency services with GPS and ECG over 2G.

Five modalities.
One 2.82mm chip.

PPG 530 / 660 / 940nm - 8ch
Multi-lambda PPG

HR +/-1 BPM - SpO2 +/-2% - pulse wave velocity - BP estimation

ECG 250Hz - Lead I equivalent
Single-Lead ECG

95% AF sensitivity - QTc - PVC detection - 30-sec on-demand

BIOZ 50kHz - 120dB SNR - <1uA
Bioimpedance

Body composition - fluid status - cuffless BP contribution

TMP TMP117 · +/-0.1C medical-grade
Clinical Temperature

Core body temperature - early fever + infection signal - circadian baseline

IMU BMI270 - <0.4g fall threshold
6-Axis IMU

Fall detection - 4-stage sleep - activity - AF AUC +4.3%

Looking at data over the long-term… [we can] dial it in to the individual patients in their individual lives and give people the best overall prediction of risk.
— Dr Joe Jensen, MD (Minneapolis Heart Institute Foundation)

Cardiac Intelligence for Everyone

Every 90 seconds, an American suffers an out-of-hospital cardiac arrest.

7 in 10 happen at home, unwitnessed.

<1 in 10 people survive.

CPR within 2 mins gives an 81% higher chance of survival.

After the next 10 golden minutes, it makes no difference.

SamaWritten provides real-time context and alerts contacts, empowering every Good Samaritan.

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What makes SamaBeat different?

SamaBeat vs typical wearables
SamaBeat Clip
Clinic-grade. Alerts for help on its own.
Typical wearable
Great for runs. Quiet in emergencies.
Sensors
Five medical-grade sensors reading your heart, oxygen and pulse all day.
One optical sensor counting steps and the odd heart rate.
2G
Alerts for help on its own. No Bluetooth, no Wi-Fi.
Useless the moment its host device is dead, charging, or out of range.
Escalation
Alerts your loved ones and medical team, alerts nearby with high-pitch buzzer and blinking flash, and shares vitals instantly.
Buzzes on your wrist and alerts limited contacts with no other information.
Usability
A stranger can read your name, meds and emergency contact in seconds.
Locked behind a passcode and an app you have to know how to open.
Equity
Validated on darker skin tones — Monk 4–10, not as an afterthought.
Calibrated on light skin. Misreads SpO₂ on the people most at risk.

Trusted by leading doctors, experts, and paramedics:

Trusted by leading doctors, experts, and paramedics. From cardiology to paediatrics, OB/GYN to blood banks — the clinicians who triage emergencies told us what they need.

Often the patient party arrives in a rush without proper history. This gives us the exact data we need, though adding a feature for direct lab system uploads down the line is required.

Honestly, I haven't seen anything quite like this in the market for at-risk patients.

In pediatric emergencies, the parents usually panic and can't give proper history. Having something that simply shows vitals is very important.

In city traffic, you lose time fast. A band like this is good for patients and their families, and there is really nothing else out there doing exactly this.

Getting ECG and PPG readings so easily is very helpful, though it would be great if it could eventually sync directly to our ward monitors.

A band that just gives us those basic but vital info during emergency is a potential game-changer.

We get so many requests for blood every single day, specially for anemia cases, and it gets very busy. This tech is really important because it takes just seconds to read.

Adolescent and young women, especially following pregnancy, face huge burden of anaemia. The SamaBeat Clip helps in such situations — especially in remote areas, and in emergencies in remote patient care.

Your heart's digital twin, now 24×7 on alert.

How it works
Sensing, AI, and escalation, end to end.
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How it works
  • Five on-wrist sensors fuse PPG, ECG, BioZ, EDA/GSR, and a 6-axis IMU into a continuous physiological stream.
  • On-device inference runs on a 2.82 mm chip — anomalies get flagged in seconds, not hours.
  • When something serious is detected, the band escalates over 2G: caregivers get a push, then a follow-up alert. Emergency services get GPS + ECG over 2G if the wearer doesn't respond.
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The science
Validation, comparators, and what we've proven.
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The science
  • Validated in a 182-participant study against an accredited reference lab.
  • SpO₂ mean bias −0.31% vs reference oximetry; haemoglobin r = 0.91 vs venous CBC; AF detection AUC 0.92.
  • Skin-tone equity: SpO₂ bias stays within ±1.5% across all Monk Skin Tone categories, including Monk 8–10 where most commercial pulse oximeters fail.
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Conditions monitored
What we watch for now and what comes next.
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Conditions monitored
  • 20+ cardiac conditions watched continuously: AFib, bradycardia, tachycardia, PVCs, QTc prolongation, and decompensation precursors.
  • Respiratory and metabolic add-ons: SpO₂, respiratory rate, anaemia screening, BP estimation.
  • Roadmap: post-ictal recovery, sleep apnea, and stress-tonic patterns from EDA.
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Clinical trials
Open studies, cohorts, and ongoing research.
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Clinical trials
  • Indiana clinical trial — now enrolling residents aged 50+ for a 90-day validation study.
  • Compares SamaBeat Band real-time monitoring against clinical-grade diagnostics across screening, onboarding, active monitoring, and follow-up phases.
  • Apply to participate or read the eligibility criteria in full.
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Why this matters
The cardiac care gap, and what changes at scale.
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Why this matters
  • The hardest constraint in cardiac monitoring isn't sensor accuracy — it's the $300 price floor that excludes the bottom 70% of at-risk patients.
  • Most cardiac emergencies happen when no one is watching: at home, at night, in transit. A wearable that only measures isn't enough — it has to escalate.
  • Built for everyone the wearable industry priced out and miscalibrated for.
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Our story
Principles, constraints, and the mission.
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Our story
  • Started by founders who watched family members wait too long for cardiac help — and who had access to better engineering than the people who needed it most.
  • Every architectural choice — e-ink display, sub-$10 BOM, on-device inference — falls out of refusing to design above the $300 line.
  • The product we'd want available to our own families: bystander-readable, accurate on every skin tone, priced for everyone.
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Clinic-grade vitals
on your sleeve.

5 sensors. 15+ conditions. 2G built in.
For the millions of people whose hearts need a guardian that never sleeps.

Talk to us →
$199 for SamaBeat Band · +$49 for the Clip