Know your numbers,trust the devicemeasuring them.
Buying guides for smartwatches, smart rings, blood pressure monitors, smart scales and home health devices, starting with what you want to track and which devices are validated or cleared to measure it.
Find devices by what you track
Activity, heart, blood pressure, weight, sleep and more. Each section starts with what the device actually measures.
Smartwatches & trackers
Smartwatches, bands and fitness trackers
Smart rings
Rings for sleep, recovery and activity
Blood pressure & heart
BP monitors and ECG devices
Smart scales
Weight and body composition
Home monitors
Oximeters, thermometers and glucose
Sleep tech
Sleep trackers and smart alarms
Apps & platforms
Health apps, platforms and privacy
Aging & safety
Fall detection and medical alerts
Understand the measurements
Health Tech questions, answered
Can a smartwatch measure blood pressure?
Features and regulatory status vary. The FDA warns against unauthorized devices that claim to measure or estimate blood pressure. Check the exact model and ask your doctor.
Read: Blood Pressure Monitor vs Smartwatch →Does every smart scale support Wi-Fi?
No. Connection options are model-specific.
Read: Bluetooth vs Wi-Fi Smart Scale Chart →Can a smartwatch diagnose sleep apnea?
Do not treat a consumer sleep summary as a diagnosis. Ask a doctor about symptoms, testing or a diagnosis.
Read: Can a Sleep Tracker Diagnose Sleep Apnea? →Can a smart ring measure glucose without a sensor under the skin?
The FDA warns against smart rings or watches that claim to measure glucose on their own without piercing the skin.
Read: Can a Smart Ring Measure Blood Glucose? →Are sleep trackers automatically FDA-cleared?
No. Regulatory status depends on the exact product and its intended use.
Read: Does FDA Clearance Apply to Every Sleep Tracker? →Do all products called pulse oximeters have the same FDA product code?
No. FDA lists distinct product codes, including oximeter and wellness oximeter entries. Check the exact device record.
Read: FDA Classification Records for Pulse Oximeters →Validation before features
Every device guide says whether a feature is FDA-cleared, validated in published studies, or a wellness estimate.
Each guide says who the device suits, who should look elsewhere, and what to check before you buy.
Brands cannot buy a review or a spot on a list. Partner codes save you money; they never decide what we recommend.
Prices are dated, codes are updated across the site at once, and pages are revised when a product, standard or rule changes.
Codes that work at checkout
The health technology index
- 01Smartwatches & trackersSmartwatches and fitness trackers for health monitoring: heart rate, ECG, SpO2, activity and battery life compared.3 pages
- 02Smart ringsSmart rings that track sleep, heart rate, temperature and activity, with sizing and subscription costs.3 pages
- 03Blood pressure & heartValidated home blood pressure monitors, cuff sizing, personal ECG devices and heart rate monitors.8 pages
- 04Smart scalesSmart scales, body composition by bioimpedance, and what the numbers can and cannot tell you.3 pages
- 05Home monitorsPulse oximeters, thermometers, continuous glucose monitors and other home health monitors.3 pages
- 06Sleep techSleep tracking wearables and bedside devices, smart alarms and what sleep scores mean.3 pages
- 07Apps & platformsHealth platforms and apps, data sharing with your doctor, subscriptions and privacy.4 pages
- 08Aging & safetyFall detection, medical alert systems, medication reminders and tech for older adults.3 pages