INDEPENDENT
CGM ANALYSIS
“We believe the best data comes from the people who live with these devices every day.”
Device Details Library
Head-to-Head Comparisons
Dexcom G7
Dexcom
Freestyle Libre 3 Plus
Abbott
Dexcom Stelo
Dexcom
Abbott Lingo
Abbott
Medtronic Guardian 4
Medtronic
Dexcom G6
Dexcom
Freestyle Libre 2
Abbott
| Dimension | Dexcom G7 | Freestyle Libre 3 Plus |
|---|---|---|
| Use type | Prescription | Prescription |
| Insulin-use fit | High | High |
| Wear duration (days) | 10 | 15 |
| Warmup (minutes) | 30 | 60 |
| Calibration | none | none |
| Alert depth | full | standard |
| Discretion | Medium | High |
| Community signal focus | night alerts, accuracy | night alerts, accuracy |
| Community signal tone | mixed user reports | more risk-heavy user reports |
| Accuracy score | 5/5 | 4/5 |
| Adhesion score | 3/5 | 4/5 |
| Comfort score | 3/5 | 5/5 |
Frequently Asked Questions
Fingerstick vs CGM: which is better for day-to-day decisions?
+
Fingerstick vs CGM: which is better for day-to-day decisions?
This comparison explains when spot checks are enough and when continuous trends meaningfully change user behavior.
Read Full Answer →vs implantable sensors: what is the real difference?
+
vs implantable sensors: what is the real difference?
Users comparing patch sensors with implantable options usually weigh insertion burden, replacement cadence, and long-horizon stability.
Read Full Answer →Why does my CGM show low readings at night when I feel fine?
+
Why does my CGM show low readings at night when I feel fine?
Compression lows are one of the highest-frequency user complaints across CGM communities.
Read Full Answer →Why does my CGM sensor keep falling off?
+
Why does my CGM sensor keep falling off?
Adhesion failure is a major cost and trust issue for active users.
Read Full Answer →Why can CGM readings feel off in the first 24 hours?
+
Why can CGM readings feel off in the first 24 hours?
Many users report day-1 variability before sensors stabilize.
Read Full Answer →Why does my CGM alarm low at night when my glucose is not low?
+
Why does my CGM alarm low at night when my glucose is not low?
Night alarms that do not match symptoms are repeatedly discussed on Reddit.
Read Full Answer →Why does my CGM keep losing Bluetooth signal?
+
Why does my CGM keep losing Bluetooth signal?
Signal dropouts remain a practical friction point in daily CGM use.
Read Full Answer →Do I need an overpatch for my CGM?
+
Do I need an overpatch for my CGM?
Overpatch strategy is one of the most practical adhesion levers users control.
Read Full Answer →What can I do if my CGM adhesive irritates my skin?
+
What can I do if my CGM adhesive irritates my skin?
Skin reactivity is a major reason users switch brands or patch routines.
Read Full Answer →Can I shower, swim, and work out with a CGM?
+
Can I shower, swim, and work out with a CGM?
Water, friction, and sweat are common stress tests for sensor adhesion.
Read Full Answer →Why does rice spike me so differently on CGM?
+
Why does rice spike me so differently on CGM?
Rice remains one of the most discussed meal experiments in CGM communities.
Read Full Answer →