Brandwave

Dexcom vs FreeStyle Libre:Which is more popular?

In October 2026, Dexcom had more branded searches than FreeStyle Libre among continuous glucose monitor brands worldwide. Dexcom had about 301,000 branded searches, while FreeStyle Libre had 165,000. Dexcom made up 52.1% of all continuous glucose monitor brand searches we track, and FreeStyle Libre accounted for 28.6%. When we asked ChatGPT and Google AI Overviews about continuous glucose monitor brands, both Dexcom and FreeStyle Libre appeared in all five answers. Dexcom was mentioned before FreeStyle Libre in every answer.

Among continuous glucose monitor brands worldwide in October 2026

Who do people search for more?

Dexcom, about 82% more searches than FreeStyle Libre

Dexcom 301K searchesFreeStyle Libre 165K searches

Who does AI mention more?

Both are mentioned in every answer we collected.

Dexcom in 5 of 5FreeStyle Libre in 5 of 5

Who does AI recommend more?

Dexcom, named ahead of FreeStyle Libre in every answer

Dexcom first in 5FreeStyle Libre never first

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Top continuous glucose monitor brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, both Dexcom and FreeStyle Libre showed up in all five answers. Dexcom was listed before FreeStyle Libre in every answer.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Dexcom1st
  2. FreeStyle Libre2nd
  3. Medtronic3rd
  4. LinX–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Dexcom5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • FreeStyle Libre5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Medtronic3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • LinX0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about continuous glucose monitor brands

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is Dexcom or FreeStyle Libre more popular in search?

This chart shows how often people search Google for Dexcom and FreeStyle Libre by name. Each line represents a brand's share of searches for all four continuous glucose monitor brands we track, month by month, from English-language searches worldwide.

Dexcom and FreeStyle Libre among continuous glucose monitor brands worldwide, by month

Share of searches by month for Dexcom, FreeStyle Libre. The figures are in the table below the chart.

View monthly share of searches table
MonthDexcomFreeStyle LibreLinXMedtronic
Nov 202544%36%19.7%0.34%
Dec 202544%36%19.7%0.29%
Jan 202649.1%32.8%17.9%0.26%
Feb 202644%36%19.7%0.29%
Mar 202647.1%31.5%21.1%0.25%
Apr 202649.1%32.8%17.9%0.26%
May 202649.1%32.8%17.9%0.26%
Jun 202652.1%28.6%19%0.28%
Jul 202652.1%28.6%19%0.28%
Aug 202652.1%28.6%19%0.28%
Sep 202652.1%28.6%19%0.28%
Oct 202652.1%28.6%19%0.28%

How has branded search for Dexcom and FreeStyle Libre changed worldwide over the last 12 months?

3 findings

How did search popularity change for continuous glucose monitor brands worldwide in October 2026?

2 changes

  1. Estimated monthly branded searches for Dexcom worldwide rose 22.4% over 12 measured months, from 246K to 301K in October 2026.

  2. Estimated monthly branded searches for FreeStyle Libre worldwide fell 17.9% over 12 measured months, from 201K to 165K in October 2026.

How are Dexcom’s and FreeStyle Libre’s branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Dexcom’s and FreeStyle Libre’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Dexcom

1 branded search term

  • dexcom

FreeStyle Libre

1 branded search term

  • freestyle libre

How the Brand Demand Index is measured

Other head-to-heads among continuous glucose monitor brands

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