About Health Tech Reviews
Founded in 2021 with a simple premise: health technology deserves to be evaluated by people who understand both health and technology. Five years later, we've reviewed more than 200 products without accepting a single sponsored review placement.
Our Mission
Consumer health technology — smartwatches, calorie tracking apps, continuous glucose monitors, sleep trackers — is increasingly used to make real health decisions. Yet the publications that review these products most frequently have no clinical staff, no standardized testing protocols, and no mechanism for validating manufacturer claims against actual measurement standards.
Health Tech Reviews was founded to fill this gap. We believe that a publication reviewing an ECG-capable smartwatch should have a cardiologist or physician on staff. A publication reviewing calorie tracking apps should include a registered dietitian. A publication evaluating blood pressure monitors should be able to compare them against validated sphygmomanometers.
We are not anti-technology. We are enthusiastic about the potential of health tech to improve lives. But enthusiasm has to be grounded in evidence.
Our Testing Environment
Wearable Accuracy Protocols
Wearables are tested against reference-grade equipment: medical-grade ECG for heart rate validation, polysomnography for sleep staging, laboratory GPS receivers for positioning accuracy. We run a standardized 5K course, a 30-minute stationary bike session, and a resistance training session on every wearable we evaluate.
App Testing Framework
Health apps are evaluated over a minimum six-week period by the relevant subject-matter expert on our team. We test with both real-world usage and standardized scenarios — for nutrition apps, this includes 40 meals prepared to precise weights and photographed under controlled lighting conditions.
Medical Device Validation
Blood pressure monitors, pulse oximeters, and glucose monitors are compared against clinically validated reference devices. Our protocol follows Association for the Advancement of Medical Instrumentation (AAMI) guidelines for blood pressure device validation.
Privacy & Security Review
Every app we review undergoes a privacy policy analysis. Chris Martinez uses a standardized 25-point checklist covering data collection, third-party sharing, encryption standards, data deletion provisions, and HIPAA compliance posture. Apps that fail the security review are penalized in their overall score.
Editorial Independence
Health Tech Reviews has never accepted payment for a review, a ranking, or editorial coverage of any kind. We purchase all products at retail unless a product is not commercially available (in which case we borrow a review unit and note this in the review). We do not participate in affiliate marketing programs for products we review. We accept no advertising from companies whose products appear in our rankings.
We publish corrections prominently when our testing data is found to contain errors. See our methodology page for the complete testing framework.
The Team
Dr. Nathan Cross, MD, MPH
Dr. Cross practiced internal medicine for six years before moving into the health technology sector. He served as medical director at a digital health startup (2018-2021), where he became deeply familiar with the gap between how health tech companies describe their products and how those products actually perform on clinical metrics. He founded Health Tech Reviews in 2021 with a mandate to apply the same evidence standards to consumer health tech that clinicians apply to medical interventions. He holds an MD from Johns Hopkins School of Medicine and an MPH from Harvard T.H. Chan School of Public Health.
Sarah Kim
Sarah spent seven years as a consumer electronics journalist, including four years as a senior editor at Engadget covering wearables. She has reviewed more than 150 wearable devices and developed a proprietary GPS accuracy testing protocol adapted for outdoor and indoor conditions. At Health Tech Reviews, she leads all wearable evaluations and is responsible for establishing our standardized testing framework for heart rate accuracy, sleep staging, and activity recognition. Her coverage has been cited in IEEE Transactions on Consumer Electronics.
Dr. Priya Sharma, PharmD
Dr. Sharma is a clinical pharmacist who spent eight years in hospital pharmacy before joining Health Tech Reviews. Her clinical background makes her uniquely qualified to evaluate medical devices against the standards set by clinical-grade equipment. She has deep expertise in continuous glucose monitor technology, having consulted on CGM implementation protocols for several hospital systems. She evaluates all FDA-cleared consumer medical devices and provides clinical context that distinguishes our coverage from purely tech-focused publications.
Chris Martinez
Chris has been covering mobile apps and digital health for nine years, previously as a contributing editor at The Wirecutter and then as health tech correspondent for a major digital publication. He brings a software engineer's technical eye to app evaluation — he can read privacy policies, understand API architectures, and identify when an app's claimed features don't match its technical implementation. He leads our health app reviews, including mental health apps, telehealth platforms, sleep applications, and fitness software.
Dr. Megan Liu, RDN
Dr. Liu is a Registered Dietitian Nutritionist with nine years of clinical practice in hospital and outpatient settings. Her research background includes dietary assessment methodology, and she has published on the accuracy of consumer nutrition tracking tools in peer-reviewed journals. At Health Tech Reviews, she leads all nutrition app evaluations, applying a clinical dietitian's perspective to assess whether apps make recommendations that would be appropriate in a clinical context. Her testing protocol for calorie tracking app accuracy — based on standardized meal preparation and USDA reference comparisons — is the most rigorous methodology published by any consumer review publication.
Our History
Founded
Dr. Nathan Cross launches Health Tech Reviews with two collaborators and a mission to bring clinical rigor to consumer health tech journalism. First six reviews published.
Team Expands
Sarah Kim joins as Wearables Editor, bringing deep consumer electronics expertise. Testing lab protocols formalized. 40 products reviewed.
Medical Device Coverage
Dr. Priya Sharma joins to lead medical device reviews. CGM coverage launches as consumer glucose monitoring goes mainstream with Dexcom and Abbott. 90 products reviewed.
App Coverage Deepens
Chris Martinez and Dr. Megan Liu join to expand health app coverage. Nutrition app testing protocol published. 150 products reviewed. Named "Best Health Tech Publication" by a leading industry association.
AI Health Tech Focus
AI health applications proliferate. Health Tech Reviews develops the industry's most rigorous AI accuracy testing methodology for consumer health apps. 200+ products reviewed across wearables, apps, and devices.