Study Watch vs Zio AT ECG Monitoring System

Similar category, different focus. These tools serve overlapping but distinct needs. Comparability 78/100 Comparability is an AI-graded 0–100 score of how directly these two tools compete — higher means a more apples-to-apples comparison.
by Verily
VS
by iRhythm Technologies, Inc.

AI Verdict

Study Watch is designed for continuous, multi-sensor physiological monitoring primarily in clinical research settings, collecting a broad range of data for analysis. In contrast, the Zio AT ECG Monitoring System is a dedicated diagnostic service focused on long-term arrhythmia detection through continuous ECG monitoring with real-time data transmission. While both leverage AI and wearables for cardiac health, their core applications diverge between research data collection and specific clinical diagnosis.

Choose Study Watch if…

Choose the Verily Study Watch if your clinical research requires continuous, multi-modal physiological monitoring beyond just cardiac rhythm, such as electrodermal activity and inertial movements. This device is ideal for studies focused on developing new algorithms or understanding complex physiological responses where a diverse dataset is crucial for long-term observational studies.

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Choose Zio AT ECG Monitoring System if…

Choose the Zio AT ECG Monitoring System if your primary goal is the long-term, AI-powered detection and diagnosis of cardiac arrhythmias with real-time data transmission for clinical management. This system is best suited for patients needing comprehensive ECG monitoring and detailed clinician reports to identify and manage symptomatic or asymptomatic cardiac events over an extended period, up to 14 days.

View Zio AT ECG Monitoring System →

Reviewed by Pouyan Golshani, MD — Interventional Radiologist

Quick Comparison

Feature Study Watch Zio AT ECG Monitoring System
Pricing Unknown Contact for pricing
Deployment The Study Watch is a wrist-worn, multi-sensor wearable device used for data collection in clinical trials. Data from the watch is encrypted and sent securely to the Verily Cloud using a USB syncing and charging cradle and a wireless connectivity bridge (Verily Study Hub). Cloud-based (data analytics and clinician portal)
BAA Available Unknown Yes AI-estimated
FDA Status Cleared AI-estimated Cleared AI-estimated
HIPAA Unknown Yes AI-estimated

Head-to-Head

AI-generated assessment across six dimensions based on each tool's documented features and compliance posture. Grounded in public data — not a substitute for hands-on evaluation.

Usability

Zio AT ECG Monitoring System

Tool B provides a comprehensive ecosystem with a clinician portal and a patient mobile app for symptom logging and education, enhancing user interaction and management. Tool A, while having an E-ink display for simplicity, focuses more on data collection for research without explicitly detailing similar user-facing applications for patient or clinician engagement.

Clinical Value

Zio AT ECG Monitoring System

Tool B offers an FDA-cleared deep-learned AI algorithm (ZEUS System) specifically for long-term arrhythmia detection and provides comprehensive end-of-wear reports for clinicians, directly addressing a critical diagnostic need in cardiology. While Tool A also has FDA clearance and monitors physiological data for research across multiple specialties, Tool B's explicit focus on a validated AI for diagnosis provides a more direct and defined clinical value for its target application.

Pricing & Value

Tie

Neither tool provides publicly available pricing information, making a direct comparison of their value propositions impossible. Both require direct contact for pricing details, indicating a partnership or service-based model rather than a standardized, transparent cost structure.

Enterprise Readiness

Zio AT ECG Monitoring System

Both tools claim HIPAA compliance and BAA availability, and are cloud-based. However, Tool A's description explicitly mentions an ongoing lawsuit alleging BAA breaches and HIPAA violations, which, despite Verily's denials, introduces a potential risk factor for enterprise adoption that is not present in Tool B's stated facts.

Innovation

Study Watch

Tool A demonstrates broader innovation through its multi-modal sensor suite, collecting ECG, heart rate, electrodermal activity, and inertial movements for comprehensive physiological monitoring in clinical research. While Tool B features an FDA-cleared deep-learned AI algorithm for arrhythmia detection and extended wear time, Tool A's diverse data collection capabilities suggest a wider scope of innovative data capture for future AI applications.

Support & Docs

Zio AT ECG Monitoring System

Tool B explicitly details a 'ZioSuiteu00ae clinician portal' and 'MyZiou00ae patient mobile app' for patient management, report interpretation, symptom logging, and education, indicating a structured approach to user support and documentation. Tool A's description focuses on the device and cloud platform for research, without mentioning comparable explicit support mechanisms or user-facing documentation beyond its core functionality.

Feature-by-Feature

Detail beyond the Quick Comparison summary. For pricing, deployment, BAA, FDA, and HIPAA see the Overview tab.

Feature Study Watch Zio AT ECG Monitoring System
Name Study Watch Zio AT ECG Monitoring System
Description Prescription-only, sensor-based wearable for non-invasive, continuous physiological monitoring in clinical research, collecting data like ECG, heart rate, and movement for analysis in Verily's cloud platform. FDA-cleared, wearable mobile cardiac telemetry (MCT) service offering continuous, AI-powered ECG monitoring for long-term arrhythmia detection and comprehensive reporting.
Company Verily Life Sciences iRhythm Technologies, Inc.
Categories Cardiology AI, Wearables & Remote Monitoring (RPM) Cardiology AI, Wearables & Remote Monitoring (RPM)
Key Features (Selected) Continuous physiological monitoring; Multiple physiological sensors (ECG, heart rate, electrodermal activity, inertial movements); Long battery life (up to one week); Cloud-based data processing with algorithms and machine learning; On-demand single-channel ECG; Irregular pulse monitor. Wearable Zio AT patch for continuous ECG recording; Wireless gateway for real-time data transmission; FDA-cleared deep-learned AI algorithm (ZEUS System) for arrhythmia detection; Continuous, uninterrupted ECG recording for up to 14 days; Comprehensive end-of-wear reports for clinicians; ZioSuiteu00ae clinician portal and mobile app.

Videos

Demos, reviews, and walkthroughs featuring Study Watch and Zio AT ECG Monitoring System.

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Frequently Asked Questions

The Verily Study Watch is a prescription-only wearable designed for non-invasive, continuous physiological monitoring in clinical research. The Zio AT ECG Monitoring System is an FDA-cleared mobile cardiac telemetry (MCT) service for continuous, AI-powered ECG monitoring specifically for long-term arrhythmia detection.
The Verily Study Watch has a long battery life of up to one week for continuous physiological monitoring. The Zio AT ECG Monitoring System offers continuous, uninterrupted ECG recording for up to 14 days.
The Verily Study Watch utilizes cloud-based data processing with algorithms and machine learning. The Zio AT ECG Monitoring System features an FDA-cleared deep-learned AI algorithm (ZEUS System) specifically for arrhythmia detection.
The Verily Study Watch collects multiple physiological sensors data including ECG, heart rate, electrodermal activity, and inertial movements. The Zio AT ECG Monitoring System primarily focuses on continuous ECG recording.
The Verily Study Watch is intended for use in Cardiology, Neurology, and Sleep Medicine research. The Zio AT ECG Monitoring System is primarily focused on Cardiology.

Backers

Who funded each tool's parent company.

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