Freestyle Libre 3 Plus
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 more risk-heavy user reports for Freestyle Libre 3 Plus and mixed user reports for Medtronic Guardian 4.”
Key Differences
| Dimension | Freestyle Libre 3 Plus | Medtronic Guardian 4 |
|---|---|---|
| Use type | Prescription | Prescription |
| Insulin-use fit | High | High |
| Wear duration (days) | 15 | 7 |
| Warmup (minutes) | 60 | Varies / not emphasized |
| Calibration | none | none |
| Alert depth | standard | full |
| Discretion | High | Medium |
| Community signal focus | night alerts, accuracy | signal, ecosystem |
| Community signal tone | more risk-heavy user reports | mixed user reports |
References
- 1.Abbott FreeStyle Libre 3 / 3 Plus provider infoofficial
- 2.Libre 3 safety informationofficial
- 3.Medtronic 780G + Guardian 4 calibration guidanceofficial
- 4.Reddit: Libre nighttime false lowscommunity
- 5.Reddit: Libre 3 false low discussioncommunity
- 6.Reddit: Guardian 4 reliability complaintscommunity
- 7.Reddit: Guardian 4 positive in-range outcomescommunity
- 8.Reddit: CGM falling off patterns and fixes (r/diabetes_t2)community
- 9.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.