Dexcom G7
VS.
Medtronic Guardian 4
Quick Verdict
“No single winner across all users. Specs and community evidence suggest deciding by your top constraint: alert depth, day-1 trust, signal stability, and real cost path. Current user-report tone is mixed user reports for Dexcom G7 and mixed user reports for Medtronic Guardian 4.”
Key Differences
| Dimension | Dexcom G7 | Medtronic Guardian 4 |
|---|---|---|
| Use type | Prescription | Prescription |
| Insulin-use fit | High | High |
| Wear duration (days) | 10 | 7 |
| Warmup (minutes) | 30 | Varies / not emphasized |
| Calibration | none | none |
| Alert depth | full | full |
| Discretion | Medium | Medium |
| Community signal focus | night alerts, accuracy | signal, ecosystem |
| Community signal tone | mixed user reports | mixed user reports |
References
- 1.Dexcom G7 Overview (official)official
- 2.Medtronic 780G + Guardian 4 calibration guidanceofficial
- 3.Reddit: Dexcom compression lowscommunity
- 4.Reddit: Dexcom compression low patternscommunity
- 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.