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FreeStyle Libre 3 Sensor
The FreeStyle Libre 3 Sensor represents a significant advancement in continuous glucose monitoring technology. This innovative device offers real-time glucose readings with enhanced accuracy, allowing users to better manage their diabetes. With a streamlined design and simplified application process, the FreeStyle Libre 3 Sensor ensures a more comfortable and user-friendly experience. Its integration of advanced features supports individuals in achieving optimal glycemic control. The FreeStyle Libre 3 Sensor provides real-time, minute-by-minute glucose readings automatically sent to your compatible smartphone without scanning. Designed for accuracy, comfort, and discretion, it offers continuous glucose monitoring for up to 14 days with optional high and low glucose alerts.
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About this item
The FreeStyle Libre 3 Sensor is Abbott’s most advanced CGM sensor, delivering automatic real-time glucose readings directly to your smartphone every minute — with no scanning required. Its small, slim design makes it the smallest CGM sensor available from Abbott, offering improved comfort and discretion compared to previous Libre generations.
The sensor continuously measures glucose in the interstitial fluid and sends updates via Bluetooth to the FreeStyle Libre 3 smartphone app. Users can view current glucose levels, trend arrows, and up to 14 days of continuous glucose history, helping them make more informed decisions about insulin, food, and daily activity.
Customizable high, low, and urgent-low glucose alerts help notify you of important changes, even when you’re sleeping or active.
Important: Always follow the manufacturer’s instructions for insertion and usage. If your symptoms do not match the displayed glucose reading, confirm using a blood glucose meter before making treatment decisions.
PRODUCT DETAILS
System Type: Continuous real-time glucose monitoring (no scanning required)
Glucose Measurement Frequency: Measures every minute; transmits readings automatically
Wear Duration: Up to 14 days
Indicated Age Range: 4 years and older (pediatric + adult)
Application Site: Back of the upper arm (approved for all ages)
Calibration: No fingerstick calibration required
Alerts: High glucose, low glucose, urgent-low, and signal-related alerts
Connectivity: Bluetooth-enabled direct-to-smartphone communication
Reader/Display Compatibility:
- FreeStyle Libre 3 smartphone app (required)
- No reader available for Libre 3
Water Resistance: Designed for water exposure such as showering, exercise, and light swimming
Intended Use: Continuous glucose monitoring for diabetes management with automatic real-time updates
| Feature | Dexcom G6 | Dexcom G7 | Libre 14-Day | Libre 2 | Libre 2 Plus | Libre 3 | Libre 3 Plus |
| Wear Duration | 10 days | 10 days + 12hr grace | 14 days | 14 days | 15 days | 14 days | 15 days |
| Real-Time Data (No Scan Needed) | ✔ Yes | ✔ Yes | ✖ No (scan required) | ✖ No (scan required) | ✖ No (scan required) | ✔ Yes (auto) | ✔ Yes (auto) |
| Alerts (High/Low/Urgent Low) | ✔ All alerts | ✔ All alerts | ✖ None | ✔ High/Low | ✔ High/Low/Urgent Low | ✔ All alerts | ✔ All alerts |
| Warm-Up Time | 2 hours | ~30 minutes | 12 hours | 1 hour | 1 hour | 1 hour | 1 hour |
| Accuracy (MARD) | ~9% | ~8% | ~9.4% | ~9.2% | ~9.2% | ~7.9% | ~7.9% |
| Age Indication | 2+ years | 2+ years | 18+ | 4+ years | 2+ years | 4+ years | 2+ years |
| Sensor Design | Slim, low-profile, smallest Libre sensor to date |
|---|---|
| Transmission Range | Typical Bluetooth range within personal space |
| Trend Data | Real-time glucose + trend arrows + 14 days of history |
| Warm-up Time | 1-hour initialization after insertion |
| Adhesive | Skin-friendly adhesive designed for full 14-day wear |
| Packaging | Individually packaged sensor with applicator |
| Smartphone Compatibility | Device-dependent; check Abbott’s list |
| SKU (Internal Use) | FL3-Sensor |
| Single-use | Must be replaced every 14 days |
3 reviews for FreeStyle Libre 3 Sensor
4.67 out of 5 stars
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Marcus D. –
Great system, app could be improved
The sensor works flawlessly and gives constant updates. The only downside is that the app drains a bit of battery, but the data and alerts are worth it.
Jennifer P. –
Small, discreet, and reliable
The sensor is tiny and barely noticeable. Bluetooth alerts work perfectly and help me catch highs and lows early. Lasts the full 14 days with no issues.
Ethan W. –
Real-time data without scanning is a game changer
Libre 3 feels like a huge step forward. Getting readings every minute on my phone without scanning makes it so much easier to stay in range. Super comfortable and very accurate.