Glyvon HealthCGM is a sensor placed on the arm or abdomen that reads glucose from interstitial fluid every 1–5 minutes. Bluetooth-connected to a phone app.
Summary
CGM = no finger pricks. 14-day disposable sensors typically $50–80. Standard for type 1, growing in type 2 and metabolic health.
Popular models (2026)
| Model | Wear | Calibration | Approx price |
|---|---|---|---|
| FreeStyle Libre 3 | 14 days | Factory | $50–70/sensor |
| Dexcom G7 | 10 days | Factory | $80–100/sensor |
| Medtronic Guardian 4 | 7 days | Daily | $80–120/sensor |
| Eversense (implant) | 180 days | 2x daily | $1000–1500/year |
Who should use it?
- Type 1 diabetes (standard)
- Insulin-using type 2
- Frequent hypoglycemia
- Gestational diabetes
- Prediabetes (motivation)
- Anyone interested in metabolic health
Pros
- 288 readings/day vs 4–8 finger pricks
- Trend arrows
- Hypoglycemia alarms
- Time in Range tracking
- See food/exercise effects
Cons
- Cost ($1000–2000/year)
- Skin irritation (~5%)
- Compression hypoglycemia
- Lag in fast changes
- Water/sauna limitations
Time in Range targets
| Group | TIR (70–180 mg/dL) |
|---|---|
| Type 1/Type 2 adult | > 70% |
| Elderly / at-risk | > 50% |
| Pregnancy | > 70% (63–140) |
Frequently asked questions
Does CGM hurt?
Insertion uses a thin filament ~5mm. Most users report no pain.
Is CGM covered by insurance?
Type 1 typically covered. Type 2 coverage varies. Check your plan.
I don't have diabetes — should I wear one?
No medical necessity, but valuable for behavior change in metabolic health. Consult a clinician.
Do I still need finger pricks with CGM?
Modern factory-calibrated CGMs don't require routine finger pricks.
Medical disclaimer: This content is for educational purposes only and does not replace individual medical advice.