Medtronic MiniMed 670G with Guardian Insulin Pump Pros and Cons

/, 2018 Insulin Pump Review/Medtronic MiniMed 670G with Guardian Insulin Pump Pros and Cons

Pros & Cons of the Medtronic MiniMed 670G with Guardian

Our 2018 review

Medtronic MiniMed 630G insulin pump

  • Unique Advantages: Pros

    • Large, secure, long-established company
    • Industry leader in R & D
    • Data from Medtronic Guardian CGM displayed on-screen
    • Automatic basal shutoff when low glucose detected by sensor (may help prevent severe hypos)
    • Hybrid closed loop(Automode) basal adjustment based on CGM readings and predictive algorithms
    • High-contrast full-color screen
    • Slim attachable clip
    • Integrated meter serves as remote control for bolusing
    • Frequently used boluses & temp basals can be stored as “presets”
    • Downloadable to online Carelink program
    • Choice of slow or fast bolus delivery
    • Generates insulin/carb/BG statistics
  • Potential Drawbacks: CONS

    • “Airplane Mode” option CGM and Automode require additional finger sticks for calibration and safety checks.
    • Maintaining Automode requires a higher level of technical acumen and interaction with the pump.
    • Frequent system alerts in Automode may become intrusive
    • Attached clip is upside-down
    • Must pay for loaner/backup pumps
    • Screen and text are relatively small
    • Insulin-on-board only deducted from correction boluses
    • Downloading restricted to Carelink program
    • Multiple menus and programming can be complex to master
    • Many button-presses and confirmation steps in basic programming
    • Delay in getting pumps, supplies and training to new users
    • Company’s marketing can be overly aggressive

About the Author:

Integrated Diabetes Services is the worldwide leader in one-on-one consulting for people who use insulin. Diabetes “coaching” services are available in-person and remotely via phone and the internet for children and adults.


  1. David M. May 4, 2018 at 10:38 pm - Reply

    The pump loses its Automode connection constantly. It’s been a nightmare. Calling tech support constantly.

  2. Jeremy W. June 17, 2018 at 3:02 pm - Reply

    I agree with David. I calibrated at 10:30 pm and it woke me up at 3:48 am to enter blood glucose to stay in auto mode when there was no reason for pump to not stay in auto mode. Also you have to be precise to stay within range. Goo luck if you miscount carbs and you sugar goes high. While pump target is set to 120 for auto mode it will only correct for 150. If 120 is target the pump should correct for 120 not 150. It’s very frustrating. My guess is I will have to drop auto mode and go back to manual mode. Oh and the Medtronic sensor has a range of 33%. That’s right, it is allowed to be 33% off so you can’t really trust what you see on your screen. I tested 6 times a day before 670g and there are days I have to test more due to auto mode. Get ready to ration your test strips.

  3. Steve M December 27, 2018 at 11:35 pm - Reply

    I really like my 670G. Works well but takes some attention. That’s the point really.

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