Medtronic
Medtronic Guardian 4
$2478.3
Released 2023-04
Best Continuous Glucose Monitors · head-to-head
Medtronic Guardian 4 vs Sibionics GS3
A sourced, side-by-side comparison. Medtronic Guardian 4 is cheaper at $2478.3. Every spec and price links to its source.
Sibionics
Sibionics GS3
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Medtronic Guardian 4 | Sibionics GS3 |
|---|---|---|
| US price | $2478.3 | — |
| Brand | Medtronic | Sibionics |
| Released | 2023-04 | — |
| Wear duration days | 7 | 14 |
| Warmup time hours | 2 | 1 |
| Reading interval min | 5 | 5 |
| Water resistance | Splash-resistant only; not rated for submersion | IP38 - water-resistant to 1 m for up to 1 hour |
| App platform | iOS & Android (Guardian Connect app); also displays on the MiniMed 780G pump | iOS & Android |
| Prescription required | Yes | No |
| Mard accuracy pct | 10.6 | 8.83 |
| Sensor size | 1.50 x 2.60 x 2.00 in | 24.8 x 17.8 x 2.9 mm (0.98 x 0.70 x 0.11 in), 1.5 g |
Sources — Medtronic Guardian 4: consumerguide.diabetes.org (verified 2026-08-01). Sibionics GS3: sibionicscgm.com (verified 2026-08-01).
What's the difference between the Medtronic Guardian 4 and Sibionics GS3?
Where the two actually differ on the specs we track (7 of 8). Matching specs are omitted.
- Wear duration days: Medtronic Guardian 4 7 vs Sibionics GS3 14
- Warmup time hours: Medtronic Guardian 4 2 vs Sibionics GS3 1
- Water resistance: Medtronic Guardian 4 Splash-resistant only; not rated for submersion vs Sibionics GS3 IP38 - water-resistant to 1 m for up to 1 hour
- App platform: Medtronic Guardian 4 iOS & Android (Guardian Connect app); also displays on the MiniMed 780G pump vs Sibionics GS3 iOS & Android
- Prescription required: Medtronic Guardian 4 true vs Sibionics GS3 false
- Mard accuracy pct: Medtronic Guardian 4 10.6 vs Sibionics GS3 8.83
- Sensor size: Medtronic Guardian 4 1.50 x 2.60 x 2.00 in vs Sibionics GS3 24.8 x 17.8 x 2.9 mm (0.98 x 0.70 x 0.11 in), 1.5 g