pen Device
tandem mobi

Summary

Insulin pens make insulin delivery more convenient than traditional vial/syringe options. Pens are small, portable, and more discrete to use in public. 

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

Insulin Pen : Bolus Insulin

Insulin Pen : Bolus Insulin

Bolus (fast-acting) insulin pen for meal time or high blood sugar correction.

Insulin Pen : Basal Insulin

Insulin Pen : Basal Insulin

Basal (long-acting) insulin pen for steady release of insulin that helps control blood sugar between meals, and overnight.

Insulin Pen : Needles

Insulin Pen : Needles

Disposable needle attaches to insulin pen for daily injections.

Tandem Mobi : Pump

Tandem Mobi : Pump

Small pump connects tubing to a 5 inch tubing patch called an infusion set that attaches to the body.

Tandem Mobi : Sensor

Tandem Mobi : Sensor

Automatic applicator inserts sensor just under the surface of the skin and can be applied to many places on the body.

Tandem Mobi : Controller

Tandem Mobi : 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.

Tandem Mobi : Infusion Set

Tandem Mobi : Infusion Set

An infusion set contains the thin plastic tubing that delivers insulin from the pump to the body.

Device Details

Overview

Nothing on the body when not in use. Noticeable when dosing. 

Tandem Mobi is the smallest insulin delivery system to be fully controlled by a smartphone.

Affordability and Access

$$$$
Widely covered for insulin-dependent type 1 and 2. Price range; 0-$1260/month depending on insurance coverage. 

$$$$
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

No Options

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

No Options

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

28 Days 
Can be kept at room temperature (not above 80º F) when in use for 28 days. Unopened insulin pens should be stored in the refrigerator (36ºF - 46ºF).

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

NO text to speech
NO 
vibration alerts
A LOT
of dexterity needed

NO text to speech
YES 
vibration alerts
A LOT 
of dexterity needed

Patient Considerations

Active Lifestyle

No attachments to the body. Insulin pens are easy to use and do not remain attached to the body, allowing for a flexible and active lifestyle. 

Waterproof. The pump and CGM are waterproof and can be worn for most exercises.

Avoiding Highs and Lows

Limited customizability. Pens require manual dose adjustment and limit the ability to adjust basal insulin throughout the day. 

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

Many components. Have to carry pen and pen needles but nothing attached to the body. 

Shorter tubing option. A shorter 5-inch tubing option for comfort on body. 

Easy Insulin Dosing

More precise than syringes. Ability to measure doses using a dial, increasing accuracy. 

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

Simple but many steps. Attach a new needle, dial the correct dose, inject, and dispose of needle. 

Easy Dosing. Full control from a smartphone, with the option to manually bolus if needed.

Fewer Fingersticks

Frequent finger-sticks are required. 

Factory-calibrated sensor. Fingersticks needed for backup only.

Privacy

Hideable. Pens can be hidden when not in use but visible when in use. Frequent injections are unavoidable. 

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.