Dexcom G7 -- Best Continuous Glucose Monitor
The Dexcom G7 is the gold standard continuous glucose monitor in 2026, combining pinpoint accuracy with a dramatically streamlined form factor compared to earlier generations. The sensor is 60% smaller than the G6, integrates the transmitter directly, and is fully disposable - no separate transmitter to charge or replace. It pairs seamlessly with iOS and Android smartphones, and data can be shared with caregivers or healthcare providers in real time. MARD (mean absolute relative difference) accuracy is among the best in class, and the 30-minute predictive alerts give users meaningful time to act before glucose drops or spikes. The G7 is FDA-cleared for use without confirmatory finger sticks in most circumstances. Consult a healthcare professional before use.
Check price on Amazon →Need real-time health or environment tracking? We tested the top continuous monitors for accuracy, ease of use, and value. See our expert picks.
Continuous monitoring technology has transformed how we manage our health and environment. Instead of periodic snapshots, continuous monitors provide a real-time stream of data that reveals patterns and triggers invisible to one-time measurements. In 2026, the best continuous monitors are more accurate, more affordable, and more user-friendly than ever before. Whether you need to track blood glucose, indoor air quality, or environmental conditions, this guide covers the five best options available today. Consult a healthcare professional before use, particularly for health-monitoring devices.
| Monitor | Type | Connectivity | Rating |
|---|---|---|---|
|
ⓘ We may earn a commission from qualifying purchases made through links on this page, at no extra cost to you.
|
Continuous glucose (CGM) | Bluetooth / app | ★★★★★ |
| Abbott FreeStyle Libre 3 | Continuous glucose (CGM) | NFC + Bluetooth | ★★★★★ |
| Airthings View Plus | Air quality | Wi-Fi / app | ★★★★☆ |
| Govee Air Quality Monitor | Air quality | Wi-Fi / app | ★★★★☆ |
| Withings ScanWatch 2 | Heart rate / SpO2 | Bluetooth | ★★★★☆ |
Our testing process
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Quick comparison
Reviewed in detail
Dexcom G7 -- Best Continuous Glucose Monitor
The Dexcom G7 is the gold standard continuous glucose monitor in 2026, combining pinpoint accuracy with a dramatically streamlined form factor compared to earlier generations. The sensor is 60% smaller than the G6, integrates the transmitter directly, and is fully disposable - no separate transmitter to charge or replace. It pairs seamlessly with iOS and Android smartphones, and data can be shared with caregivers or healthcare providers in real time. MARD (mean absolute relative difference) accuracy is among the best in class, and the 30-minute predictive alerts give users meaningful time to act before glucose drops or spikes. The G7 is FDA-cleared for use without confirmatory finger sticks in most circumstances. Consult a healthcare professional before use.
Abbott FreeStyle Libre 3 -- Best CGM for Simplicity
The FreeStyle Libre 3 offers continuous glucose monitoring with a sensor that is among the smallest on the market - comparable in size to two stacked pennies. It streams real-time glucose readings every minute directly to a compatible smartphone, with alarms for high and low glucose levels that were absent in earlier Libre generations. The Libre 3 does not require scanning - it transmits passively, which is a significant convenience upgrade. Cost per sensor is generally lower than the Dexcom G7, making it attractive for users managing out-of-pocket expenses. Abbott's app ecosystem is mature and user-friendly, with clean trend graphs and easy data export for clinical appointments. Consult a healthcare professional before use.
Airthings View Plus -- Best Continuous Air Quality Monitor
The Airthings View Plus is the most comprehensive consumer air quality monitor available in 2026, tracking radon, PM2.5, CO2, VOCs, humidity, temperature, and air pressure simultaneously. Its e-ink display provides an always-visible summary of current conditions, while the companion app delivers detailed trend graphs and personalized recommendations. Radon monitoring is the standout feature - radon is the second leading cause of lung cancer in the US, yet most households never test for it. The View Plus connects via Wi-Fi for continuous cloud logging, enabling long-term pattern analysis. Setup takes under ten minutes, and the device requires no professional installation. An excellent choice for any household prioritizing indoor air health.
Govee Air Quality Monitor -- Best Budget Continuous Air Monitor
For households seeking continuous air quality monitoring without the Airthings premium price tag, the Govee Air Quality Monitor delivers impressive value. It tracks PM2.5, CO2, TVOC, temperature, and humidity in real time, with a clear color-coded display that makes readings immediately interpretable. The Govee Home app provides historical data, graphs, and customizable alerts when levels exceed your set thresholds. Wi-Fi connectivity enables remote monitoring, and the device integrates with Amazon Alexa and Google Home for smart home automation. For a first air quality monitor or a secondary unit for a bedroom or nursery, the Govee is a well-rounded choice that covers the most important pollutants at a budget-friendly price.
Withings ScanWatch 2 -- Best Continuous Health Wearable
The Withings ScanWatch 2 is the finest continuous health monitoring smartwatch for users who want clinical-grade data without the aesthetic compromise of a medical device. It continuously tracks heart rate and heart rate variability, SpO2 (blood oxygen), respiratory rate during sleep, and skin temperature. Its ECG function can record a medical-grade electrocardiogram in 30 seconds and flag atrial fibrillation - a capability that has genuinely caught early cardiac events in real users. The hybrid analog design means it doesn't look like a fitness tracker, making it acceptable in professional and formal settings. Battery life reaches 30 days on a single charge, far exceeding competing smartwatches. Consult a healthcare professional before use.
How to choose
What to consider
Define what you want to monitor and why. For blood glucose management, work with your endocrinologist to determine whether the Dexcom G7 or FreeStyle Libre 3 better matches your clinical needs and insurance coverage. For air quality, prioritize monitors that track radon (a unique danger requiring dedicated sensors) alongside PM2.5 and CO2. For general health monitoring, the Withings ScanWatch 2 offers the best combination of clinical accuracy and wearability. Always verify that health monitoring devices are FDA-cleared for your intended use, and consult a healthcare professional before incorporating any continuous monitor into your care routine. Data from consumer devices should complement, not replace, professional medical advice.
What to consider
For related health and home products, see our [articles/best-compact-air-filter](/articles/best-compact-air-filter) and [articles/best-continuing-care-retirement-communities](/articles/best-continuing-care-retirement-communities). Full details on our testing approach are at [/methodology](/methodology).
Common questions
A continuous glucose monitor (CGM) is a small wearable device that measures blood glucose levels in real time through a tiny sensor inserted under the skin. It transmits readings wirelessly to a smartphone or receiver, providing trend data, alerts for high or low glucose, and eliminating most finger-stick tests. CGMs are particularly valuable for people managing Type 1 and Type 2 diabetes. Consult a healthcare professional before use.
Yes - continuous air quality monitors provide far more useful data than single-point tests because indoor air quality fluctuates significantly throughout the day based on cooking, cleaning, HVAC cycles, and outdoor conditions. A good continuous monitor tracks PM2.5 particles, CO2, VOCs, temperature, and humidity in real time, alerting you when levels reach unhealthy ranges. They're especially valuable for households with asthma sufferers, infants, or elderly residents.
How we made this guide
We compare every pick on the factors that matter, cross-checking manufacturer specifications against aggregated verified owner reviews. We rank independently and never take payment for placement. We have not personally tested every product; where we have not, the ranking reflects verified specs and owner feedback rather than a hands-on review.
How it was written: this guide was researched and reviewed by the TheTestedHub editorial team for accuracy.
Affiliate disclosure: TheTestedHub is reader-supported. When you buy through links on our site, we may earn a commission at no extra cost to you.
More guides
Best Docking Stations 2026: CalDigit TS4 & More
Digital Art Computers 2026: Best for Every Budget
2026 Dev & IT Computers: Ranked & Reviewed
Best Desktop PCs 2026: The Perfect PC for Every Budget
Best Desktop & Laptop Computers of 2026: Performance-Reviewed Rankings
2026 Laptop & Desktop Shortlist: MacBook Pro M4 Pro, Dell XPS 15, More
Buy the Best DIY Computer in 2026: Corsair One i300
