The FreeStyle Libre range of continuous glucose monitors (CGMs) has transformed diabetes care, helping millions track glucose levels without finger pricks. With the introduction of the Libre 2 Plus and Libre 3 Plus sensors, many users are asking: How do these new Plus versions compare to the original models?
In this guide, we’ll compare FreeStyle Libre 2 vs Libre 2 Plus and Libre 3 vs Libre 3 Plus, covering key features, benefits, and helping you decide which CGM suits your lifestyle.
What Are the FreeStyle Libre Plus Sensors?
The FreeStyle Libre 2 Plus and Libre 3 Plus are the latest sensor options from Abbott Diabetes Care and are compatible with their respective apps. These sensors offer 15-day wear time, real-time glucose updates, and extended age approval for younger users.
Key upgrades:
- 15-day sensor duration
- Optional glucose alarms (Libre 3 Plus only)
- Discreet, small sensor design
- Suitable for children aged 2 and older
- Seamless integration with the Libre apps
FreeStyle Libre 2 vs Libre 2 Plus
What’s the Difference?
The FreeStyle Libre 2 sensor is a scan-based CGM system with optional glucose alarms. The Libre 2 Plus keeps all those features but extends the wear time to 15 days and is now approved for children aged 2+.
| Feature | FreeStyle Libre 2 | FreeStyle Libre 2 Plus |
|---|---|---|
| Sensor Life | 14 days | 15 days |
| Glucose Alarms | Yes (optional) | Yes (optional) |
| Scanning Required | Yes | Yes |
| App Compatibility | LibreLink | LibreLink |
| Reader Compatibility | Yes | Yes |
| Streaming Data | No | No |
| Age Range | 4+ | 2+ |
Why Choose Libre 2 Plus?
- Longer wear: One extra day reduces the number of monthly sensor changes.
- Same ecosystem: Uses the existing LibreLink app and reader.
- Approved for younger children: Suitable for ages 2 and up, offering more flexibility for families.
If you’re already using the Libre 2, upgrading to Libre 2 Plus means less maintenance with no change in daily routine.
🔗 Buy FreeStyle Libre 2 Plus Sensor
FreeStyle Libre 3 vs Libre 3 Plus
Key Differences
The FreeStyle Libre 3 introduced real-time glucose streaming via Bluetooth without the need to scan. The new Libre 3 Plus adds optional high and low glucose alarms, and extends wear to 15 days.
| Feature | FreeStyle Libre 3 | FreeStyle Libre 3 Plus |
|---|---|---|
| Sensor Life | 14 days | 15 days |
| Glucose Alarms | No | Yes (optional) |
| Real-Time Data | Yes | Yes |
| App Used | Libre 3 App | Libre 3 App |
| Sensor Size | Ultra-small | Ultra-small |
| Age Range | 4+ | 2+ |
Why Upgrade to Libre 3 Plus?
- Glucose alarms: Get real-time alerts to avoid hypo- or hyperglycaemia.
- Extended wear time: 15 days reduces the cost and frequency of replacements.
- For younger users: Like the Libre 2 Plus, it’s now suitable for ages 2 and up.
If you love the real-time tracking of the Libre 3 but want alarms for extra peace of mind, the Libre 3 Plus is a natural upgrade.
🔗 Buy FreeStyle Libre 3 Plus Sensor
Libre 2 Plus vs Libre 3 Plus: Which Should You Choose?
Still deciding between the Libre 2 Plus and Libre 3 Plus? Here’s a side-by-side comparison:
| Feature | Libre 2 Plus | Libre 3 Plus |
|---|---|---|
| Real-Time Streaming | No | Yes |
| Alarms | Yes | Yes |
| Sensor Wear Time | 15 days | 15 days |
| Scanning Required | Yes | No |
| App | LibreLink | Libre 3 App |
| Reader Support | Yes | No |
| Age Range | 2+ | 2+ |
Choose Libre 2 Plus if:
- You prefer manual scanning
- You already use the Libre reader
- You want a stable upgrade without switching apps
Choose Libre 3 Plus if:
- You want real-time, scan-free monitoring
- You need customisable alarms
- You prefer a smaller, more discreet sensor
Trusted Resources
For further information on CGMs and diabetes care:
- NHS: Continuous Glucose Monitoring (CGM)
- Freestyle Libre UK Official Site
- Diabetes UK – Glucose Monitoring