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.
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The differences that matter
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.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| 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 | Medical interstitial glucose monitoring for people age 2+ with diabetes, including pregnancy per UK labelling. ↗ | Prescription glucose sensor used with a compatible MiniMed 780G system. ↗ |
| Form factor | Upper-arm wearable glucose sensor ↗ | Subcutaneous upper-arm sensor plus reusable on-body transmitter ↗ |
| Sensor Duration | 15 days ↗ | Up to seven days ↗ |
| Readings | Every minute to compatible LibreLink app ↗ | Not applicable to this category |
| Age Indication | 2+; children 2-12 require adult caregiver supervision ↗ | 7+ per current US comparison ↗ |
| Interface | Existing Libre 2 reader or compatible LibreLink app ↗ | Not applicable to this category |
| Alerts | Optional high/low glucose alarms ↗ | Not applicable to this category |
| Location | Back of upper arm ↗ | Not applicable to this category |
| Warmup | Not applicable to this category | Two hours ↗ |
| Components | Not applicable to this category | Guardian 4 sensor, Guardian 4 transmitter, reusable serter ↗ |
| Insertion | Not applicable to this category | Two-handed serter procedure ↗ |
| Site | Not applicable to this category | Back of upper arm only in US instructions ↗ |
| 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 |
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| Editorial pick & release | #9 · Our Top 10 Health sensors and monitoringRelease date not verifiedDocumented product in the stated source market; destination availability and checkout not tested. | No editorial ranking recorded |
| Evidence | Manufacturer source Checked 2026-10-12 | Manufacturer source Checked 2026-10-13 |
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.