Continuous glucose monitor · From $99 (Stelo, OTC)
Dexcom (Stelo / G7)
The most accurate consumer glucose platform.
Choose your Dexcom model
OTC, 15-day wear
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.
Where Dexcom (Stelo / G7) data syncs
What reaches Apple Health on iPhone, Health Connect on Android, and Vora through a direct connection (listed as Dexcom and Stelo).
| Metric | Apple Health (iPhone) | Health Connect (Android) | Vora direct connection |
|---|---|---|---|
| Blood glucose | Yes | Yes | No route |
How we rated the Dexcom (Stelo / G7)
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 its source: independent testing, or the brand's own page for current-model specs and prices.
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). Diabetes Technology & Therapeutics 2022 (Garg et al., G7 pivotal study) ↗
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 ↗
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 ↗
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 ↗
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 ↗
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), Diabetes Technology & Therapeutics 2022 (G7 pivotal accuracy study, Garg et al.), Healio (next-gen G7 15-day sensor)
The Dexcom (Stelo / G7) scorecard
Build a stack around the Dexcom
It is pre-loaded below. Drag in a second device to see how the combined coverage changes.
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.
OuraRing
AppleWatch
WHOOPBand
CIRQABand
FitbitBand
GarminWatch
SamsungWatch
FitbitBand
UltrahumanRingDexcomCGM
GoogleWatch
COROSWatch
Eight SleepSleep
PolarHR strap
SamsungRing
RingConnRing
CircularRing
AmazfitRing
WithingsWatch
SuuntoWatch
PolarWatch
AmazfitWatch
GarminHR strap
AbbottCGM
LevelsCGM
WithingsSleep
WithingsScale
InBodyScale
HumeScale
GarminScale
A focused setup. Great at its specialty, lighter everywhere else.
- 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.
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?
What are the downsides of the Dexcom (Stelo / G7)?
Does Vora work with the Dexcom (Stelo / G7)?
Keep exploring
Oura RingUltrahuman RingSamsung Galaxy RingRingConnCircular Ring 2Amazfit Helio RingApple WatchGalaxy WatchGoogle Pixel WatchWithings ScanWatchGarminCOROSSuuntoPolarAmazfitWHOOPFitbitFitbit AirGarmin CIRQAPolar H10Garmin HRMAbbott Lingo / LibreLevelsEight SleepWithings SleepWithings Body ScanInBodyHume Body PodGarmin Index S2Keep 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.