Compare CGMs that work with insulin pumps

This table gives details about the three CGMs funded to work with insulin pumps.

CGM

Dexcom 6

Dexcom 7

Freestyle Libre 3 Plus

Image (Not shown to scale)

A white plastic oblong device, round at one end, it has a blue plastic surround

An ovoid white device, it has a small notch on the outer edge and a small hole at one end of the device

A round white device, it has a small hole at the top

Accuracy (MARD-Adults)

9.0%

8.2%

8.2%

Warm-up period

120 min

30 min

60 min

Sensor life

10 days

10 days

15 days

Combined sensor size

45.7 mm x 30.5 mm x 15.2 mm

27 mm x 23 mm x 4.7 mm

21 mm (Diameter) x 2.9 mm (H)

Weight

28 g

7.5 g

1 g

Separate reader device if required

Yes

Yes

No

Water resistance (Ingress Protection)

IP68 – Immersion in up to 2.4 meters of water for 24 hours

IP68 – Immersion in up to 2.4 meters of water for 24 hours

IP67: immersion in water for up to 1 meter for 30 minutes

Range

6 metres

6 metres

10 metres

Insulin Pump Interoperable (AID)

Yes – Tandem t:slim and YpsoPump

Yes – Tandem t:slim

Yes – YpsoPump and Tandem t:slim (by 1 July 2025)

Alarm functionality

High, Low, Rise, Fall, Urgent Low Soon, Urgent Low, Signal Loss

High, Low, Rise, Fall, Urgent Low Soon, Urgent Low, Signal loss, Silent Mode

Low Glucose, High Glucose, and Signal Loss

Predictive Alarms

Yes

Yes

No

Live data sharing

Yes via Dexcom Follow

Yes via Dexcom Follow

Yes – Via CamAPS FX app (in conjunction with YpsoPump)

Data Sharing with Health Care Providers

Yes via Dexcom Clarity

Yes via Dexcom Clarity

Yes - via CamAPS FX app (in conjunction with YpsoPump)

Glucose Reading Frequency

Every 5 min

Every 5 min

Every minute

Approved sites

Multiple

Multiple

Upper arm

Supplier website

Dexcom (G6 and G7)(external link)

Dexcom (G6 and G7)(external link)

Mediray (FreeStyle Libre 3 plus)(external link)