Tandem t:slim Insulin Pump – Review

Reviewer Product Rating:

The Tandem t:slim pump is reviewed by type 1 D-blogger and insurance agent Sarah Kaye — and gives it high marks, despite a slow site change process.



  • touch screen makes it easier to use
  • personal profiles rather than multiple menu settings
  • 300-unit cartridge despite small size
  • micro-delivery safety feature
  • has a rechargeable battery, so no need to change out batteries
  • software is PC or Mac compatible
  • pump is watertight
  • screen-timeout has memory
  • the carb calculator is located right in the bolus menu
  • IOB (Insulin on Board) is viewable directly on the lock screen and front menu


  • lots of confirmation screens can be a hassle
  • time to prime takes quite a bit longer than other pumps
  • cartridge and connector design tends to cause bubbles and they can be difficult to prime out
  • only approved for Humalog and Novolog insulins, not Apidra

Use this pump? Tell us what you think!


7 Responses

  1. Susan
    Susan September 3, 2014 at 12:29 pm | | Reply

    Good luck actually obtaining one. We have been calling for a week attempting to get someone to call us back, finally contacted customer service who quickly placed us over to a v/m with someone who was covering for the person we needed to actually speak with, who is out on vacation. We need a pump ASAP and cannot get a live body to deal with. I think there is one person in the whole company who can actually connect with your insurance company and make this happen!

  2. Jillian Tyre
    Jillian Tyre September 5, 2014 at 9:04 am | | Reply

    Susan – please keep me posted. I was just about to call the rep for my area and ask him to get the ball rolling. I will not go with a company that is lacking customer support! Thanks for your review!

    1. Donnica
      Donnica September 17, 2014 at 9:21 pm | | Reply

      I actually am in the process of taking the tslim for a test drive and while I was at the Joslin Diabetes Center, THE CDE called the rep and they came immediately and showed me the pump basics and set me up to test it. I am testing 3 pumps and found so far that there customer service to be very focused and prompt. Not sure what was going on in your area, but I do know that all reps for all companies have territories so depending on where you live that rep may be the only one…no excuse but just a thought.

  3. Jason Maultsby
    Jason Maultsby October 24, 2014 at 8:30 pm | | Reply

    There customer service has been outstanding called Monday and by today friday had everything signed and approved with my insurence and doctor. I should be on my brand new Tslim pump by Tuesday can’t wait.

  4. Ruth
    Ruth October 30, 2014 at 1:34 pm | | Reply

    My doctor’s officce set everything up and had it approved within two weeks. The reps and customer support have been great!

  5. Nanci Finkelman
    Nanci Finkelman November 6, 2014 at 4:22 pm | | Reply

    I am in the process of ordering the t-slim. So far, the representatives and insurance department have been very helpful! I look forward to a smaller and less button pressing insulin pump then the one I am currently using!! I love that this pump is re-chargeable and water resistant too!!

  6. Jose E Hernandez
    Jose E Hernandez November 7, 2014 at 3:55 pm | | Reply

    Hi i just want to know if the t-slim pump can mesure youre blood sugarn and automatic deliver insulin?
    excuseme for the question but i always read about this kind of pump but never find answer for this question,please help me out.

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