Continuous glucose monitor · From $99 (Stelo, OTC)

Dexcom (Stelo / G7)

The most accurate consumer glucose platform.

★★★★★4.2/ 5 Vora ratingHow we rated ↓

#1 glucose

Choose your Dexcom model

Dexcom Stelo$99 / 2 sensors

OTC, 15-day wear

Recovery20

Battery Life90

Best for

Accurate real-time glucose response to food, exercise and sleep

Watch out for

Glucose alone is noisy without food and activity context

With Vora

Vora connects glucose trends with nutrition, workouts and recovery so the numbers become decisions.

CGM guide

How we rated the Dexcom (Stelo / G7)

★★★★★4.2/ 5, Vora editorial rating

Our own assessment of a device we do not sell, weighted across six dimensions: accuracy 30 percent, coverage 20 percent, battery 15 percent, value 15 percent, comfort 10 percent, app and ecosystem 10 percent. Every score links to an independent 2024 to 2026 source.

Accuracy96

Peer-reviewed G7 validation against the YSI lab analyzer puts MARD in the single digits, the best of any non-implantable real-time CGM.

Overall MARD of 8.2% (arm) and 9.1% (abdomen) across 316 participants and 77,774 CGM-YSI matched pairs; 20/20 agreement 95.3% (arm). J Diabetes Sci Technol (PMC) G7 pivotal study ↗

Coverage & features90

It fully delivers its category promise of continuous real-time glucose, but the OTC Stelo has no high or low alerts and only shows below-70 for lows.

Stelo glucose data is 93% accurate within the 20/20 YSI criterion, but the wellness biosensor omits the alerts and alarms the clinical G7 provides. Stelo by Dexcom official FAQ ↗

Battery90

Sensor-based with no daily charging; each sensor runs continuously for the full wear period, though reviewers report occasional early sensor failures.

Each Stelo sensor has an up-to-15-day lifespan with a 12-hour grace period; a 2-sensor pack covers about 30 days of continuous wear. Stelo by Dexcom store page ↗

Comfort80

A small low-profile upper-arm patch worn continuously for 15 days, though hands-on reviews note occasional adhesion and inserter issues.

Reviewer calls the small all-in-one sensor easy to wear but flags a clunky plastic inserter and occasional goosenecking that fails the sensor. Healthline G7 review ↗

App & ecosystem70

It exports to Apple Health, Health Connect and partners like Oura and Signos, but a hard 3-hour glucose delay blunts real-time coaching use.

Stelo sends glucose to health apps with a 3-hour delay while checking those apps every 5 minutes for activity and sleep events. Stelo by Dexcom health-app FAQ ↗

Value60

Highly accurate but a permanent recurring cost with no free tier, so the sensor spend never ends the way a one-time watch or ring does.

Stelo is $99 for a 2-sensor pack covering up to 30 days, or $89 per month on subscription, an ongoing recurring sensor cost. MedTech Dive Stelo pricing report ↗

Also reviewed by: Healthline (Dexcom G7 CGM review), Journal of Diabetes Science and Technology (G7 pivotal accuracy study, PMC), Healio (next-gen G7 15-day sensor)

The Dexcom (Stelo / G7) scorecard

Glucose97#1 Battery Life90#7 Stress40#21 Recovery20#23

Build a stack around the Dexcom

It is pre-loaded below. Drag in a second device to see how the combined coverage changes.

Vora · Wearable finder29 devices · 17 signals

Build your stack. Vora runs it.

Drag wearables from the ring into the arena, or tap to add. Combine up to 8, each signal takes the strongest sensor you own, and Vora reconciles them into one plan.

Budget

OuraRing

AppleWatch

WHOOPBand

FitbitBand

GarminWatch

SamsungWatch

FitbitBand

UltrahumanRing

DexcomCGM

GoogleWatch

COROSWatch

Eight SleepSleep

PolarHR strap

SamsungRing

RingConnRing

CircularRing

AmazfitRing

WithingsWatch

SuuntoWatch

PolarWatch

AmazfitWatch

GarminHR strap

AbbottCGM

LevelsCGM

WithingsSleep

WithingsScale

InBodyScale

HumeScale

GarminScale

Stack coverage / 100

A focused setup. Great at its specialty, lighter everywhere else.

Stack price~$99upfront, selected models

Score signals8/16

Gaps

VO2 Max, HRV, Sleep, Running & GPS, Steps & Activity, Cycle Tracking, Recovery, Stress

Adding glucose lets Vora connect what you eat to how you sleep, train and recover.
A single device is simplest to live with. Vora squeezes the most out of whatever it captures.

Run this stack with Vora

Popular stacks with the Dexcom

Best metabolic-health setup

A ring for sleep and recovery plus a CGM for real glucose response. Vora ties meals to glucose, sleep and training.

FAQ

What is the Dexcom (Stelo / G7) best for?

The Dexcom (Stelo / G7) is a continuous glucose monitor best for accurate real-time glucose response to food, exercise and sleep. In our scoring it is strongest at glucose, battery, stress.

What are the downsides of the Dexcom (Stelo / G7)?

The main trade-off: glucose alone is noisy without food and activity context. That is exactly why many people pair it with a second device so each tracker does what it is best at.

Does Vora work with the Dexcom (Stelo / G7)?

Vora connects glucose trends with nutrition, workouts and recovery so the numbers become decisions. You keep using Dexcom's own app to manage the device. Vora sits above it as the coaching layer that acts on the data.

Keep exploring

Best for VO2 max Best for HRV Best for sleep Best for recovery Best for running Best for steps Best for glucose Best for stress Best for cycle Best for temperature Best for AFib / ECG Best for battery

Keep your wearable. Add a coach that acts on the data.

Vora works with Oura, WHOOP, Garmin, Apple Health, Fitbit, Samsung Health, Eight Sleep, CGMs and hundreds more, turning whatever you wear into workouts, nutrition, recovery and a daily plan.

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