Dexcom G7 & Tandem t:slim X2 insulin pump FAQs
I’m currently using the Dexcom G7 (10 day sensor) and the Tandem Mobi System or the Tandem t:slim X2 insulin pump, can I change to the Dexcom G7 15 Day CGM System?
The Dexcom G7 15 Day CGM System is not yet supported by Tandem's insulin pumps. Tandem's insulin pumps are currently compatible with the Dexcom G6 and Dexcom G7 CGM sensors (10 day sensors).
The Dexcom G7 15 Day CGM System is not yet supported by Tandem's insulin pumps. Tandem's insulin pumps are currently compatible with the Dexcom G6 and Dexcom G7 CGM sensors (10 day sensors).
Why is Tandem not yet compatible with the Dexcom G7 15 Day CGM System?
Dexcom and Tandem Diabetes Care are working together to ensure compatibility with Dexcom G7 15 Day in early 2026. Each new generation of technology requires updates to maintain seamless integration, and we aim to deliver the best experience. Once testing is complete, compatibility will be enabled through a future software update, just as we’ve done successfully with previous CGM systems.
Dexcom and Tandem Diabetes Care are working together to ensure compatibility with Dexcom G7 15 Day in early 2026. Each new generation of technology requires updates to maintain seamless integration, and we aim to deliver the best experience. Once testing is complete, compatibility will be enabled through a future software update, just as we’ve done successfully with previous CGM systems.
When can we expect Tandem to be compatible with the Dexcom G7 15 Day sensor?
Early 2026.
Early 2026.
I'm currently on Dexcom G6 and the Tandem t:slim X2 insulin pump with Control-IQ technology (software version 7.7 or later). How do I upgrade to be able to connect Dexcom G7?
If you are getting your Dexcom CGM supplies through:
If you are getting your Dexcom CGM supplies through:
Durable Medical Equipment (DME) Distributor:Reach out to your DME distributor and mention you are on a Tandem automated insulin delivery system and would like to upgrade to Dexcom G7.
Pharmacy:Reach out to your healthcare provider for a Dexcom G7 prescription.
I already have a Dexcom order on file at a DME distributor. Does my healthcare provider have to write a new order for Dexcom G7?
Your DME distributor may be able to use your current order on-file to upgrade you to Dexcom G7. Call your DME distributor to confirm if you need your healthcare provider to send a new order for Dexcom G7. If so, you can ask them to fax a request to you healthcare provider for a Dexcom G7 order.
Your DME distributor may be able to use your current order on-file to upgrade you to Dexcom G7. Call your DME distributor to confirm if you need your healthcare provider to send a new order for Dexcom G7. If so, you can ask them to fax a request to you healthcare provider for a Dexcom G7 order.
I already have a Dexcom G6 prescription at the pharmacy. Does my healthcare provider have to write a new prescription for G7?
Yes. Ask your healthcare provider to send a new prescription for Dexcom G7 to the pharmacy.
Yes. Ask your healthcare provider to send a new prescription for Dexcom G7 to the pharmacy.
When am I eligible to order Dexcom G7?
Call your DME distributor or pharmacy that dispenses your Dexcom supplies to find-out when your insurance will allow you to fill your next order for CGM supplies.
Call your DME distributor or pharmacy that dispenses your Dexcom supplies to find-out when your insurance will allow you to fill your next order for CGM supplies.
I'm insured by Medicare. Am I required to get a Dexcom G7 receiver? Will Medicare pay for a new receiver, if I already have a Dexcom G6 receiver?
In order to qualify for Medicare coverage of your Dexcom G7 supplies, Medicare requires that you have a receiver that is compatible with Dexcom G7 and that you use that receiver with your supplies, even if you also use a compatible smart device, regardless of whether you use an insulin pump. If Medicare does not pay for a new receiver, Dexcom has launched a new upgrade program that includes a Dexcom G7 receiver at no charge for eligible customers.
In order to qualify for Medicare coverage of your Dexcom G7 supplies, Medicare requires that you have a receiver that is compatible with Dexcom G7 and that you use that receiver with your supplies, even if you also use a compatible smart device, regardless of whether you use an insulin pump. If Medicare does not pay for a new receiver, Dexcom has launched a new upgrade program that includes a Dexcom G7 receiver at no charge for eligible customers.
I receive healthcare from the VA and I’m new to Dexcom and Tandem. How do I get Dexcom G7 and the t:slim X2 pump?
Ask your VA healthcare provider to send a prescription for Dexcom G7 to the VA pharmacy and to submit an order for t:slim X2 to the prosthetics department.
Ask your VA healthcare provider to send a prescription for Dexcom G7 to the VA pharmacy and to submit an order for t:slim X2 to the prosthetics department.
I receive healthcare from the VA and I’m currently on Dexcom G6 and t:slim X2 with Control IQ technology (software 7.7 or later). How do I upgrade to be able to connect my t:slim to Dexcom G7?
Ask your VA healthcare provider to send a prescription for Dexcom G7 to the VA pharmacy.
Ask your VA healthcare provider to send a prescription for Dexcom G7 to the VA pharmacy.
If I'm on the Dexcom G7 and the Tandem t:slim X2 insulin pump, do I call Dexcom or Tandem for Technical Support
Please visit https://www.dexcom.com/en-us/faqs/tandem-faqs for information about who to contact for system support.
Please visit https://www.dexcom.com/en-us/faqs/tandem-faqs for information about who to contact for system support.
What are the features and benefits of Dexcom G7?
- 60% smaller, all-in-one, discreet wearable, easier to use with fewer components than the Dexcom G6
- 30-minute warmup time
- Improved accuracy (overall MARD of 8.2%)
- 10 days wear + 12-hour grace period
- Indicated for wear on the back of the upper arm for ages 2 years and older and also the upper buttocks for ages 2 – 6 years old. The Tandem t:slim X2™️ Insulin Pump is indicated for ages 6 years and older.
What phones are compatible with Dexcom G7?
To determine if your smartphone is compatible with Dexcom G7, please visit www.dexcom.com/compatiblity.
To determine if your smartphone is compatible with Dexcom G7, please visit www.dexcom.com/compatiblity.
What are the benefits of the updated Tandem t:slim X2 insulin pump software?
- Compatibility with both Dexcom G6 and G7
- Duration timer for Exercise Activity (customizable from 30 mins to 8 hours)
- Six-digit numeric Mobile App pairing code (previously 16 alpha-numeric)
- Updated pump sounds
- Seamless Activity transition (no need to stop an Activity before switching to a different Activity)
- Updated Auto-Off alarm defaulted off (with new pumps)
What are the key differentiators of using the Dexcom G7 with the Tandem t:slim X2 insulin pump?
Dexcom and Tandem have been trusted partners in diabetes management for over 10 years. Dexcom G7 and Tandem t:slim X2 insulin pump key differentiators include:
Dexcom and Tandem have been trusted partners in diabetes management for over 10 years. Dexcom G7 and Tandem t:slim X2 insulin pump key differentiators include:
- Short - 30 minute warmup
- Ability to use Share and Follow features to share your numbers with up to 10 people
- Non-adjunctive, meaning no fingersticks to make treatment decisions
Does my doctor have to write a prescription for the Tandem t:slim X2 insulin pump with Control IQ Technology software update?For existing t:slim X2 with Control-IQ users, there is no pump prescription needed to update your pump software.
How do I know if my Dexcom G7 sensor is compatible with my Tandem t:slim X2 insulin pump?
You will learn how to identify a compatible Dexcom G7 sensor on:
You will learn how to identify a compatible Dexcom G7 sensor on:
- Pump screen error message
- Tandem training checklist for new users
- Software update portal for current users
My Dexcom G7 is not compatible with my Tandem t:slim X2 insulin pump. What do I do?
If you've received an incompatible Dexcom G7 sensor, please visit tandemdiabetes.com/g7support.
If you've received an incompatible Dexcom G7 sensor, please visit tandemdiabetes.com/g7support.
Will Dexcom G7 work with the t:connect app?
Yes, the Dexcom G7 is compatible with the t:connect app.
Yes, the Dexcom G7 is compatible with the t:connect app.
How can I get started with Dexcom G7 and the Tandem t:slim X2 insulin pump if I'm currently not on a pump OR on another AID system?
Please ask your healthcare provider for a prescription.
Please ask your healthcare provider for a prescription.
Can I wear my G6 and G7 at the same time?
No, you cannot wear them at the same time.
No, you cannot wear them at the same time.
MAT-0420, MAT-11816
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