Dexcom Stelo
Over-the-counter upper-arm glucose biosensor shows trends for adults not on insulin.
Keep in mind Do not use for problematic hypoglycemia. Medical decisions require consultation with a qualified professional.
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
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.
Scroll across the table to compare every model
| Biosensors & healthAdd a model |  |  |
|---|---|---|
| Prices · all markets | $99 USD≈ €89 EURECB 2026-10-12US · Store price · Listed 1 offer records & sources$99 USD≈ €89 EURECB 2026-10-12 US · Store price ListedDexcom One-time purchase, two biosensors Official displayed price; shipping destination, tax treatment and checkout not tested.Check merchant offer ↗Price source ↗ Checked 2026-10-12 | Price not verified 0 offer records & sourcesNo verified price in this audit. |
| Designed for | Over-the-counter upper-arm glucose biosensor shows trends for adults not on insulin. ↗ | Prescription glucose sensor used with a compatible MiniMed 780G system. ↗ |
| Form factor | Upper-arm CGM biosensor ↗ | Subcutaneous upper-arm sensor plus reusable on-body transmitter ↗ |
| Measurement | Continuous interstitial glucose ↗ | Not applicable to this category |
| Wear Duration | Up to 15 days ↗ | Not applicable to this category |
| Intended Users | Adults 18+ not on insulin, without problematic hypoglycemia ↗ | Not applicable to this category |
| Interface | Stelo app for compatible smartphones ↗ | Not applicable to this category |
| Vision correction | No prescription required in the US ↗ | Not applicable to this category |
| Purpose Class | OTC integrated continuous glucose monitor ↗ | Not applicable to this category |
| Sensor Duration | Not applicable to this category | Up to seven days ↗ |
| Warmup | Not applicable to this category | Two hours ↗ |
| Age Indication | Not applicable to this category | 7+ per current US comparison ↗ |
| 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 | Official product documentation checked. Country-specific fulfilment and checkout were not tested. | Exact manufacturer model verified; market and purchase eligibility follow the linked manufacturer source. |
| Important context |
|
|
| Editorial pick & release | #1 · 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.