# HealthTechTested > Consumer health technology guides: smartwatches and fitness trackers, smart rings, blood pressure monitors, smart scales, pulse oximeters, glucose monitors, sleep tech and health apps. HealthTechTested publishes health technology reviews, buying guides and reader discount codes. Every review states who the product suits, the current price from the brand's own store, and any active reader code. ## Key pages - [Buying guides](https://healthtechtested.com/guides): how to choose - [Glossary](https://healthtechtested.com/glossary): health technology terms defined - [Work with us](https://healthtechtested.com/work-with-us): how brands partner with HealthTechTested for reviews and reader codes - [How we test](https://healthtechtested.com/testing-methodology) ## Topics - [Smart rings](https://healthtechtested.com/category/smart-rings): Smart rings that track sleep, heart rate, temperature and activity, with sizing and subscription costs. - [Blood pressure & heart](https://healthtechtested.com/category/heart-bp): Validated home blood pressure monitors, cuff sizing, personal ECG devices and heart rate monitors. - [Smart scales](https://healthtechtested.com/category/scales): Smart scales, body composition by bioimpedance, and what the numbers can and cannot tell you. - [Apps & platforms](https://healthtechtested.com/category/apps-platforms): Health platforms and apps, data sharing with your doctor, subscriptions and privacy. ## Buying guides - [FDA-Cleared vs Wellness Features: What Health Devices Can Claim](https://healthtechtested.com/guides/fda-cleared-vs-wellness-features): Some health device features are FDA-cleared or authorized for a specific use, such as an ECG app that detects signs of atrial fibrillation. Many others, such as sleep scores, readiness and stress scores, are wellness features with no FDA review. Clearance applies to a specific feature and intended use, not the whole device. You can check a device's status in the FDA's public databases. - [How to Choose a Home Blood Pressure Monitor](https://healthtechtested.com/guides/how-to-choose-a-home-blood-pressure-monitor): Choose an automatic upper-arm monitor that has been clinically validated, in a cuff size that fits your arm. Wrist monitors are more sensitive to position. Then look at memory for multiple users, irregular heartbeat indicators and app sync. Measure seated, rested and with the cuff at heart level, and share your readings with your doctor. - [Smart Ring vs Smartwatch for Health Tracking](https://healthtechtested.com/guides/smart-ring-vs-smartwatch): Smart rings are small, comfortable to sleep in and last several days on a charge, which makes them strong for sleep and recovery tracking. Smartwatches have screens, GPS, notifications and, on some models, cleared features such as ECG, which makes them better for workouts and daily use. Check subscriptions: some rings and watches lock key insights behind a monthly fee. - [What Smart Scales Measure (and How Accurate Body Fat Is)](https://healthtechtested.com/guides/what-smart-scales-measure): Smart scales measure weight directly and estimate body composition with bioelectrical impedance analysis (BIA), sending a small current through your feet. Weight readings are usually reliable; body fat and muscle figures are estimates that shift with hydration, meals and time of day. Weigh at the same time each day and watch the trend rather than any single number. Contact: info@healthtechtested.com