The Device Files: From Concept to Commercialization
Blythe KarowStrategic field notes on commercializing innovation in MedTech, wearables, and digital health.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 56 | Founded | a year ago | Last Issue | 7 days ago |
| Active | |||||
Read this Newsletter
blythekarow.substack.comLatest Issues
Two "Whoop Killers" in Two Weeks? Don't Trust the Headlines.
The Fitbit Air launched on May 7, 2026. By the next morning, the consumer tech press had already declared WHOOP dead, predicted the collapse of the subscription model, and announced a structural shift in the wearables market.
DC Rainmaker...
The Company That Cracked Wearable Blood Pressure - And Made It Free
OK, first of all, I just want to note how entertained I am by asking Gemini to generate pictures for these articles! This one came with AN EXTRA ARM :D Also, they didn’t quite get our faces right but somehow completely duplicated our office...
Has CMS Finally Cracked the Breakthrough Device Coverage Code?
This is part 3 of a three-part series on what the breakthrough device coverage problem looks like from inside CMS, in conversation with Dr. Lee Fleisher of Rubrum Advising. Read Part 1 here and Part 2 here.
My conversation with Lee was ori...
Whatever Happened to TCET, CMS’s Breakthrough Device Coverage Pathway?
This is part two of a three-part series on what the breakthrough device coverage problem looks like from inside CMS, in conversation with Dr. Lee Fleisher of Rubrum Advising. Read Part 1 here.
This is part 2 of a three-part series on what...
Is CMS Killing Breakthrough MedTech? A View from the Other Side
This article is part one of a three-part interview series with Dr. Lee Fleisher, former Chief Medical Officer of CMS and now part of Rubrum Advising, on what the breakthrough device coverage problem looks like from CMS’s point of view.
I m...
Audience Metrics
Subscribers, engagement, traffic and sponsorship for The Device Files: From Concept to Commercialization.
| Subscribers | Engagement | 71 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Chart Rankings
How this newsletter ranks in the official Substack charts.
| #148 | |
| #106 |
Authors
The writers behind this newsletter.
Blythe Karow | 20+ years in health innovation. Former MedTech CEO turned strategic advisor. I help startups, VCs, and healthtech teams bring products to market faster and smarter. \ud83d\udd17 Learn more at thekarowgroup.com
Frequently Asked Questions
How can I access the email archive for this newsletter?
You can find recent issues that have been published by this newsletter on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does this newsletter have?
To see how many people subscribe to this newsletter, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in this newsletter?
Newsletter advertising can be extremely effective when it's done right. Before you pitch this newsletter as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like this newsletter?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact this newsletter using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to this newsletter?
Scroll up to where it says Related Newsletters to see other publications like this newsletter. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact this newsletter?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.