Tandem t:slim X2 and t:flex Insulin Pump 2018 Reviews

/, 2018 Insulin Pump Review/Tandem t:slim X2 and t:flex Insulin Pump 2018 Reviews

Pros & Cons of the Tandem t:slim X2 and t:flex Insulin Pumps

tandem tslim x2 insulin pump

  • Unique Advantages: Pros

    • X2 has software/features updatable through download from website
    • Bright, full-color touch screen
    • Modern, high-tech appearance
    • Compact, thin dimensions
    • Rapid number entry/fastest bolus entry
    • 2-Way Bluetooth (X2) allows full integration with multiple devices, including smartphones & CGM
    • X2 displays data from Dexcom G5
    • T:flex holds up to 480u
    • Charges; No disposable batteries
    • Can calculate boluses up to 50 units (60u with t:flex)
    • Site-change reminder w/customizable day & time
    • Graphic on-screen history display
    • Carb counting calculatorTemp basal up to 250%, 72 hrs
    • IOB & time remaining displayed on home screen
    • Missed bolus reminders customizable by day of week
    • Alert for high temperatures
    • Secondary basal programs can be linked with secondary bolus formulas
    • Limited unintended insulin movement with changes in pump position
    • X2 with G6 and Basal IQ – Low prediction, basal suspend feature (suspends on prediction of BG 80 or lower, restarts basal with 1mg/dl rise in BG in suspension)
  • Potential Drawbacks: CONS

    • Hybrid closed loop features pending Small buttons can be difficult to activate; screen goes blank if buttons missed 3x
    • Unlock procedure required to perform any programming
    • No attached clip (must put in a case that has a clip)
    • Tubing connector looks “medical,” can snag on clothing
    • Proprietary tubing connection, cannot use third party infusion sets.
    • Basal & bolus settings in same time slots; may take several steps to edit
    • Extra confirmation steps with all programming
    • Weak vibrate mechanism
    • No meter link
    • Company’s long-term viability is uncertain; pump is their only product
    • Requires charging 1-2x/week

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. Lisa Hoffmeyer June 12, 2018 at 7:26 pm - Reply

    I’ve been wearing a Tandem pump for nearly 4 years. I liked it very much until the nice case with an alligator clip broke and I got one of the new style cases you are using for your new pumps. It’s AWFUL !!!! It’s hard to clip on my waist band. Makes it impossible to push the on off button. But worst of all, it took dynamite to get my pump out to change the cartridge. I took it off and hoped the new cases when I get a new pump would be better. Just talked to my friend with a brand new system. SAME problem. She could not deliver a dose when she was high. The pump faces away from her when clipped to waist, and she cannot get it off. I won’t buy the new one this fall unless this is corrected.

    • alicia downs June 18, 2018 at 5:42 pm - Reply

      To clarify IDS does not produce the Tandem pump or cases 🙂
      We agree the metal clip on the current case was largely a response to pump wearers that many other clips have plastic parts that break. but the static wear angle and tightness are an issue. We do find that the button issue does get easier to press with use, but it is very stiff when new.

  2. Pat July 10, 2018 at 6:56 pm - Reply

    I wear tandem have for over a couple of years I have had issues a couple of times your tech team is horrible you guys don’t back your product it takes to elements in a company to be successful witch is product and customer service you lack at the customer service people like me type one diabetics rely on you guys to do your jobs when your product fails to replace it not to tell me lets see if it happens again that plain stupid

    • alicia downs August 29, 2018 at 2:07 pm - Reply

      Hi Pat,
      To clarify, Integrated Diabetes Services does not sell Tandem pumps. WE are an independent diabetes education and consulting company. We are not affiliated wih any device or pharmaceuticals companies.

  3. Tina Welsh October 23, 2018 at 5:01 pm - Reply

    I paid a lot of money for the Tandem pump and in less than a years it stoped working and had to wait til I called back a second time and they sent me a (new) one. Well it wasn’t new it was refurbished and now a month later have issues with this one always showing 100 % on batterie charge and my blood sugars are high so now the pump is malfunctioning and all the technicians keep say let’s wait and see if the battery changes in 2 more hours and it’s already been 24 hours. Wow really! Called everyone I had numbers for from when I bought this pump a year ago and NO ONE! Can help! I spent a lot of money for a pump that lasted a year! And maybe technicall support will finally send a refurbished one ( someone else’s old broken pump). I will be saving for a new pump from Medtronics!

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