Comparing Real-time CGMs

Comparing Real-time CGM: Which Device Fits Your Needs?

Ambrosia Real-time CGM, Direct-to-watch


Dexcom G7 Freestyle Libre 3 Medtronic Guardian Connector Guardian 3 (with 770G /780G insulin pump)
Ambrosia Real-time CGM Dexcom G7 FreeStyle Libre 3 Medtronic Guardian connector 3
Key sensor Features


Yes (Optional) No No Yes

Wearable pieces

What will the sensor look like?

Sensor & transmitter All-in-one sensor & transmitter All-in-one sensor & transmitter Sensor & transmitter

Sensor sites

Where can I wear the sensor?

Back of upper arm Ages 7+: Back of upper arms & stomach

Ages 2-6: Back of upper arm, stomach

or upper buttocks

Back of upper arm Abdomen, arm, upper buttocks

Sensor warm-up time

How long do I have to wait for a first reading?

1 hour 30 minutes 1 hour 2 hours

Sensor wear time

How long can I wear each sensor?

Sensor is 14 days.

Transmitter is reusable.

10 days

(+ 12-hour grace period once expired)

14 days 7 days

Display devices

Where will my glucose readings be displayed?

  • Smartphone (Apple & Android)
  • Smartwatch
  • Smartwatch (W/o Phone)
  • Smartphone (Apple & Android)
  • Smartwatch
  • Receiver
  • Smartphone (Apple & Android)
  • Reader (requires scanning to receive glucose data)
  • Smartphone
  • Smartwatch*
  • MiniMed insulin pumps


Readings and alarms are available on Apple and Android watches Without the Phone No No No

Spoken glucose readings

Can I ask Alexa  to recite my readings out loud?


  • “Alexa, what is my glucose?”
No No No

Trend arrows

Do sensor readings have arrows that show if glucose is going up or down?

Yes Yes Yes Yes

Automatic viewing of glucose readings

Are readings automatically sent to the display device?

Yes Yes  




In-the-moment alerts

Are there low and high glucose alert options?






-Fast rise

-Fast drop






-Urgent low (3.1 mmol/L)


-High (option to set length of time with high glucose)

-Falling or rising fast








-Urgent low (3.1 mmol/L)



-Falling or rising fast

Predictive alerts

Coming soon  



-Predicts urgent low within next 20 minutes




-Alert before low

-Alert before high

Alert convenience settings

-Customize alerts

-Snooze option available

-Alert silence option available

-Quiet modes (vibrate & silence all)

-Snooze option for low & high alerts

-Optional 2nd alert schedule

-Alert silence options (insulin pump only)

-Snooze option for low & high alerts

Food Insights

(Does it demonstrate the influence of various foods on blood sugar levels?)

Yes No No No

Stress Monitor

(Does it measure stress levels?)

Yes No No No

Activity tracker

(Physical activity, SpO2, Heart rate, Sleep, temperature, stress)

Yes No No No

Smart devices integration




(smart ring,apple and android based watches)

No No No

Diabetes Community

(Place to connect with new friends who have diabetes)


Yes(“Diabuddy” in LinkBluCon app)







Other Features


Water resistant for normal shower,  


Depth of 2.4 meters (8 feet) up to 24 hours


Water resistant

Depth of 1 meter (3 feet) up to 30 minutes


Water resistant

Depth of 2.4 meters (8 feet) up to 30 minutes

Insulin pump integration

Coming soon Update Pending in Canada

(Tandem t:slim currently compatible with Dexcom G6 in Canada)

MiniMed 770G & 780G (Guardian 3)

Glucose data sharing

(with family, friends)

FollowBluCon app, APIs are available for 3rd parties to access the data with patient’s permission Dexcom Follow app LibreLinkUp app CareLink™ Connect app

Glucose data report website

(for personal & healthcare team use)

(5 years data record available, while last 30 days is available in LinkBluCon app)

-Key reports (Daily, AGP, A1c, low events, Time in target )viewable in LinkBluCon app

Dexcom Clarity

(Select report data viewable in G7 app)



(Key reports viewable in LibreLink app)

CareLink™ Personal, MiniMed Mobile

Purchase Locations Pharmacy Pharmacy Medtronic

Disclaimer: Freestyle libre Sensor is a trademark of Abbott Diabetes Care Inc.
Ambrosia Systems Inc. does not have any Partnership Agreement or any kind of relationship with Abbott Diabetic Care or Abbott Laboratories.
Ambrosia apps and device are not FDA approved. Hence, do not use the glucose readings to take any medical decisions.

    Your Cart
    Your cart is emptyReturn to Shop