Tandem’s t:slim X2 gains a FreeStyle Libre option (US)
Tandem confirmed the t:slim X2 pump is gaining FreeStyle Libre 3 Plus support in the US, with early access from mid-2025 and wider release by year end.
Tandem’s t:slim X2 insulin pump is adding a new sensor option: Abbott’s FreeStyle Libre 3 Plus, in the United States. Until now, people ran the pump mainly with a Dexcom sensor, so this gives more choice of which sensor drives it. It is a US rollout, with early access from mid-2025 and wider availability by the end of 2025. If you use a Tandem pump in the UK, this does not change your setup today, and your team can tell you which sensors are supported here.
- The t:slim X2 is an automated pump that uses a CGM (continuous glucose monitor) to help adjust your insulin.
- It is gaining the FreeStyle Libre 3 Plus sensor as an option, so users are not tied to a single sensor brand.
- This is a US rollout being phased in through 2025, not a UK change.
- UK availability of this pump-and-sensor pairing is decided separately, so ask your diabetes team what is supported here.
What Tandem confirmed
Tandem confirmed that the t:slim X2 pump is getting FreeStyle Libre 3 Plus support in the US, with early access starting in mid-2025 and broader availability by the end of the year. In practice it means someone using this pump in the US can choose an Abbott Libre sensor to run it, alongside the Dexcom option they already had.
Sensor choice is not a small thing. The sensor a pump talks to affects wear time, how the app looks and feels, and simple things like which sensor sits best on your skin. Having more than one option means a pump can suit more people without them having to switch pumps entirely. People often get on better with one sensor than another, whether that comes down to comfort, how well it stays stuck, or the phone app they use every day, so being able to change the sensor without changing the whole pump is a genuinely useful kind of flexibility.
What it means for UK Tandem users
If you are in the UK, treat this as background. It is a US rollout, and UK availability of the Tandem and Libre 3 Plus pairing is a separate question with its own timing. Nothing about your current pump or sensor changes because of a US announcement, and you should not change your setup based on it.
The useful takeaway is that pumps are slowly becoming less tied to one sensor brand, which over time tends to mean more flexibility for you. What is actually supported with your pump in the UK, though, only your diabetes team can confirm, so that is the place to check before assuming a pairing you read about is available here.