Dexcom Stelo
VS.
Medtronic Guardian 4
Quick Verdict
“Specs + reference evidence point to Medtronic Guardian 4 as the stronger insulin-safety workflow fit. Dexcom Stelo can still be a better match when simpler onboarding matters more than alert depth. Current user-report tone: Medtronic Guardian 4 is mixed user reports, Dexcom Stelo is mixed user reports.”
Key Differences
| Dimension | Dexcom Stelo | Medtronic Guardian 4 |
|---|---|---|
| Use type | OTC | Prescription |
| Insulin-use fit | Low | High |
| Wear duration (days) | See official labeling | 7 |
| Warmup (minutes) | Varies / not emphasized | Varies / not emphasized |
| Calibration | none | none |
| Alert depth | limited | full |
| Discretion | Medium | Medium |
| Community signal focus | accuracy, night alerts | signal, ecosystem |
| Community signal tone | mixed user reports | mixed user reports |
References
- 1.Dexcom provider FAQ with Stelo indicationsofficial
- 2.Medtronic 780G + Guardian 4 calibration guidanceofficial
- 3.Reddit: Stelo user accuracy variancecommunity
- 4.Reddit: New sensor first-night false lowscommunity
- 5.Reddit: Guardian 4 reliability complaintscommunity
- 6.Reddit: Guardian 4 positive in-range outcomescommunity
- 7.Reddit: CGM falling off patterns and fixes (r/diabetes_t2)community
- 8.Reddit: CGM falling off recent discussion (r/type2diabetes)community
Medical Disclaimer
This content is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before making decisions about your diabetes management or CGM device selection.