Instinct sensor, made by Abbott, for MiniMed 780G
Tandem Mobi
Summary
This is a CGM sensor made by Abbott, exclusively designed for MiniMed 780G system. It will work with MiniMed 780G and related systems. Wear time is up to 15 days, and warm-up is ~1 hour. Fingersticks are not required in closed-loop mode.
FDA approved for ages 7+ for use on the upper arm (back of upper arm)
MARD of ~8.5%
The Tandem Mobi is the smallest durable automated insulin delivery system available in the U.S. that can be fully controlled by a mobile device. The pump is equipped with an on-pump button for users to bolus insulin directly from the pump if they don’t want to do it from their phone. This system is combined with the Dexcom continuous glucose monitor (CGM) to automatically adjust insulin delivery in response to glucose trends.
*Compatiblilty with Dexcom G7 now available
Components
Sensor
Sensor uses a thin, flexible filament beneath the skin to continuously measure glucose every 5 minutes. Simple, one-step applicator makes insertion fast and easy.
Infusion Set
An infusion set contains the thin plastic tubing that delivers insulin from the pump to the body.
Controller
Mobi pump receives CGM readings to automatically adjust basal insulin delivery via an infusion set. Compatible smartphone can be used to view and control insulin delivery.
Sensor
Automatic applicator inserts sensor just under the surface of the skin and can be applied to many places on the body.
Pump
Small pump connects tubing to a 5 inch tubing patch called an infusion set that attaches to the body.
Device Details
Overview
Compact all-in-one sensor sensor, made by Abbott, exclusively designed for MiniMed 780G system.
Tandem Mobi is the smallest insulin delivery system to be fully controlled by a smartphone.
Affordability and Access
$$$$
Coverage will depend on insurance policies and Medtronic’s rollout plan
$$$$
Pump coverage is not yet available. Sensor is widely covered and provided by DME and/or Pharmacy. Sensor price range; $0-$500/month.
Data Monitoring Options
Yes
Data streams directly to the pump; users and clinicians can view trends and logs via Medtronic’s platforms.
Yes
The t:connect mobile app for the t:slim X2 pump wirelessly uploads pump and CGM data to the cloud-based t:connect web application.
Data View Options
Yes
Data view directly on your connected pump or smart device.
Yes
Data can be viewed directly on the pump screen or on the t:connect mobile app (available for both iOS and Android devices).
Duration and Storage
15 Days
Sensors last up to 15 days and need about 1 hour to warm up. They work between 50ºF – 113ºF and should be stored between 36ºF – 82ºF. They are usually shipped in 1–3 month supplies, which is about 2–6 sensors at a time.
3-day pump 10-day sensor
Sensors last 10 days and transmitters last 90 and work at 50ºF – 108ºF. Pump can be used for up to 72 hrs, battery life lasts five days with the use of CGM, and work between 40°F - 99°F. Pump supports wireless charging.
Vision / Auditory / Dexterity
YES text to speech
YES vibration alerts
Multiple sound sources
SOME dexterity needed
NO text to speech
YES vibration alerts
A LOT of dexterity needed
Patient Considerations
Active Lifestyle
Long wear & water resistant. Longer wear reduces change burden; sensor design aims for robustness with movement. Water-resistant up to 3 feet (1 m) for 30 minutes (same standard as FreeStyle Libre family).
Waterproof. The pump and CGM are waterproof and can be worn for most exercises.
Avoiding Highs and Lows
Continuous closed-loop insulin adjustment helps maintain tighter control.
Auto basal and bolus insulin. Responds to CGM data by increasing or decreasing basal insulin delivery to prevent highs and lows and maintain a set blood glucose target.
Comfort
Small & Discreet. Very small, discreet form factor, and minimal bulk.
Shorter tubing option. A shorter 5-inch tubing option for comfort on body.
Easy Insulin Dosing
MiniMed 780G closed-loop algorithm: adjusts basal and delivers automatic correction boluses using sensor data. Longer wear (15 days) means fewer interruptions in automated dosing. In manual mode, it still requires fingerstick confirmation before dosing from sensor values.
Automatically adjusts dosing. Sensor integration allows the pump to automatically adjust insulin doses. More customizable dosing than pens or syringes. Manual bolus button is available for quick dosing without a phone.
Easy to Use
Longer sensor life and shorter warm-up (~1 hour) help with convenience.
Easy Dosing. Full control from a smartphone, with the option to manually bolus if needed.
Fewer Fingersticks
Factory-calibrated sensor. Finger sticks needed for backup only.
Factory-calibrated sensor. Fingersticks needed for backup only.
Privacy
Small & Customizable. Extremely small (about the size of two stacked pennies), designed to be less noticeable under clothing. Upper arm site only; discreet but still visible with sleeveless clothing. Alerts can be customized on the connected pump for quieter use.
Discreet. Ability to check blood sugar on phone or watch. Ability to bolus on a compatible smartphone. Pump has tubing but can be clipped to clothing or attached to local area with an armband or adhesive sleeve to be discreet when needed. Dexcom's built-in hypoglycemia safety alarm alerts users when glucose is below 55 mg/dl and is always on.