Medtronic Guardian 4
Prescription glucose sensor used with a compatible MiniMed 780G system.
Keep in mind Not a stand-alone OTC CGM. Current US comparison and Guardian 4 instructions govern the exact compatible system.
Compare wearables
Compare up to 10 devices across categories. Keep the purpose and the source beside the numbers.
Search & choose modelsAdd models to your comparison
Build your comparison
2 / 10 models676 models available. Showing nine - search to narrow the list.
Comparison settingsMarket, sorting & differences
How price order works
Lowest recorded store prices take priority over announced or launch prices, within the selected source market. Currencies use the dated EUR reference rates. Deposits and recurring charges are excluded from price order; missing prices stay last. Original price records remain visible.
At a glance
The differences that matter
Abbott FreeStyle Libre 2 Plus
Medical interstitial glucose monitoring for people age 2+ with diabetes, including pregnancy per UK labelling.
Keep in mind Manufacturer specifications; no hands-on testing or independent clinical efficacy assessment.
Published specifications and documented constraints. See the full comparison below for prices and sources.
Scroll across the table to compare every model
| Biosensors & healthAdd a model |  |  |
|---|---|---|
| Prices · all markets | Price not verified 0 offer records & sourcesNo verified price in this audit. | Price not verified 0 offer records & sourcesNo verified price in this audit. |
| Designed for | Prescription glucose sensor used with a compatible MiniMed 780G system. ↗ | Medical interstitial glucose monitoring for people age 2+ with diabetes, including pregnancy per UK labelling. ↗ |
| Form factor | Subcutaneous upper-arm sensor plus reusable on-body transmitter ↗ | Upper-arm wearable glucose sensor ↗ |
| Sensor Duration | Up to seven days ↗ | 15 days ↗ |
| Warmup | Two hours ↗ | Not applicable to this category |
| Age Indication | 7+ per current US comparison ↗ | 2+; children 2-12 require adult caregiver supervision ↗ |
| Components | Guardian 4 sensor, Guardian 4 transmitter, reusable serter ↗ | Not applicable to this category |
| Insertion | Two-handed serter procedure ↗ | Not applicable to this category |
| Site | Back of upper arm only in US instructions ↗ | Not applicable to this category |
| Readings | Not applicable to this category | Every minute to compatible LibreLink app ↗ |
| Interface | Not applicable to this category | Existing Libre 2 reader or compatible LibreLink app ↗ |
| Alerts | Not applicable to this category | Optional high/low glucose alarms ↗ |
| Location | Not applicable to this category | Back of upper arm ↗ |
| Availability | Exact manufacturer model verified; market and purchase eligibility follow the linked manufacturer source. | Exact manufacturer model verified; market and purchase eligibility follow the linked manufacturer source. |
| Important context |
|
|
| Editorial pick & release | No editorial ranking recorded | #9 · Our Top 10 Health sensors and monitoringRelease date not verifiedDocumented product in the stated source market; destination availability and checkout not tested. |
| Evidence | Manufacturer source Checked 2026-10-13 | Manufacturer source Checked 2026-10-12 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.