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Kaleido 2: A Sleek Next-Gen Pump Packed With Upgrades And Color
I got a first look at the next-gen Kaleido insulin pump that's 10% smaller, has upgraded sensors, and six brand new colors.
Justin Eastzer
March 26, 2025
The world of insulin pumps just got more advanced (and more colorful) with the unveiling of the Kaleido 2 at the ATTD (Advanced Technologies & Treatments for Diabetes) conference. Building on the success of its predecessor, Kaleido 2 promises to deliver a smaller and sleeker device with an upgraded chipset. Let’s get into everything you should know about the next-gen insulin pump.
First, some background on Kaleido…
Version 1 of the Kaleido is already available throughout a few countries in Europe—France, Germany, and the Netherlands. The pump is worn a couple different ways, similar to Tandem Mobi. It can be adhered to the body with adhesive, connected to a short 5 centimeter tube and infusion set, or placed in your pocket using longer tubing. What I love most about its design is its smooth and sleek style and colorful options. The tubing is impressively minimal compared to other tubed pumps.
Currently, Kaleido is only approved for people 18 and older, but the company plans to expand that to children as young as six next year.
Kaleido version 1 can be worn on the body using adhesive (source: ViCentra).
Kaleido 2 is more mature than its predecessor
The Kaleido insulin pump has long been known for its colorful and fun appearance, and the Kaleido 2 continues this tradition, offering six new color choices.
But the latest version takes things a step further with a more mature, sophisticated look. The matte finish of Kaleido 2 gives it a sleek, modern feel, offering a more refined aesthetic than its predecessor. Users will get two pumps and have the option to choose which two colors they would like.
One of the most exciting changes with the Kaleido 2 is its smaller size. While the original Kaleido was already impressively compact, the new version is about 10% smaller, making it the smallest rechargeable hybrid closed-loop pump on the market. Despite its reduced size, the Kaleido 2 maintains its functionality and features, meaning users get all the benefits in the smaller form factor.
Just like version 1, Kaleido 2 can be worn either use a longer tube and placed in a pocket, or attached to the body with adhesive and a short 5-centimeter tube and infusion site. This flexibility ensures that users can wear it in a way that’s most convenient and comfortable for them. I’d probably opt to show this thing off as much as possible—it’s so damn pretty!
Kaleido 2 comes in six colors all of which sport a matte finish (source: ViCentra)
Kaleido 2’s upgraded sensors and what they could mean
One of the most notable upgrades in the Kaleido 2 is the inclusion of two new sensors that enhance its ability to monitor and manage insulin delivery. The first of these is an accelerometer, which could potentially be used to track physical activity. This opens up new possibilities for users to track their activity levels and how they may impact insulin needs. It also unlocks a future where the pump’s algorithm, DBLG1, could integrate activity with glucose predictions.
The second addition is a temperature sensor. This sensor could prove to be especially useful in helping users monitor the temperature of their insulin. If the insulin gets too warm, it can lose its effectiveness, and the Kaleido 2’s temperature sensor could help users avoid this issue, ensuring that their insulin stays at the optimal temperature for delivery.
Additionally, the Kaleido 2 features a USB-C charging port, a much-needed improvement over the previous model. This means faster charging times, better compatibility, and greater convenience for users who want to keep their devices powered up.
Kaleido 2’s USB-C charging port will speed up charging (source: ViCentra)
Smartphone and next generation algorithm
The current Kaleido requires users to carry a PDM to run its DBLG1 algorithm, but Kaleido 2 promises smartphone control on launch. ViCentra says its smartphone app will work for both Android and iOS devices and remove the need for the extra device.
The pump’s algorithm is also set for an upgrade. Developers of the Diabeloop algorithm say a new version of the algorithm, DBLG2, is in the works. The algorithm will move the pump closer to a fully closed-loop system by eliminating the need to log meals—a feature I’m super excited to see. You can learn more about the DBLG1 algorithm here.
Kaleido 2 will launch with an upgraded DBLG2 algorithm and smartphone control (source: ViCentra).
Where will Kaleido 2 release and when?
Kaleido 2 is still in development, with the company hoping to submit for CE mark approval in 2026. This is an important step that will allow the device to be legally sold in the European market. If all goes as planned, the pump is expected to be released in early 2027 in Europe, allowing users in those countries to experience the next evolution of diabetes management.
After that, the company’s main focus will shift to gaining FDA clearance for the pump, which would make it available to users in the United States. The timeline for FDA approval will depend on the regulatory process, but it’s clear that the Kaleido 2 could be on the path to becoming a global solution for diabetes management.
As development progresses, we’ll continue to keep an eye on updates and news about the device. Rest assured, you’ll find all the latest info right here! For now, if you’d like to learn more about the current Kaleido pump, you can read about it . You can also watch my podcast interview with a Kaleido user below.