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We Conquered the Lag: The Freewrite Firmware that Transforms Typing on E Ink

novembre 19, 2025 | 3 lire la lecture

Introducing the Freewrite firmware that makes typing on E Ink as smooth and fast as thinking.

It's named after the fastest fish in the ocean for a reason.

Write at the Speed of Your Thoughts

Sailfish is a full top-to-bottom rewrite of the software that runs on Smart Typewriter and Traveler.

In software, the common wisdom is that a rewrite is almost never the answer. Turns out that sometimes, it’s the only option.

In 2015, we started the Freewrite journey by creating a distraction-free writing environment using a brand new technology (at the time) that allowed us to use standard web development languages (i.e. JavaScript). We picked an architecture that made sense for us at the time, choosing speed of development over performance.

Well, startup life isn’t easy, and we stayed on that software architecture a lot longer than any of us expected. We did many optimizations over the years but none could match the performance of a native application.

So, we decided to burn it all down and rebuild.

It was the only way to move forward with the advanced features we dream about creating. But doing a full rewrite was a big project! (Kind of like rewriting your novel from page one. 😰)

The software needed to work on two similar but unique hardware platforms, and it needed to provide the same core Freewrite experience — but vastly improved. We also didn’t want to launch missing any features.

It took a full year of daily effort from the entire Freewrite team, especially our small team of firmware developers, to rewrite the platform. (Which we did in Rust, for you software nerds out there.)

The result is better than we could have hoped for:

🏃 Latency is virtually gone.

Sailfish is 40% to 100% faster from key press to a character showing on the display.

In practical terms, that means it takes about half the time for a character to appear.

Or, as one beta tester put it:

“The new firmware makes typing laptop fast. […] Hard to believe it's still E Ink.”

Beta Tester Mark L.

🔋 Battery life is dramatically improved.

While typing, power consumption is 30% less. While idle, power consumption is up to 50% less!

Yes, all from a pure software update.

This means dramatically improved battery life in all situations AND dramatically improved performance.

"I have to admit, I’m astonished by the improvement.”

Beta Tester Michael J.

⏱️ Every single operation is faster.

Waking, sleeping, changing drafts, navigating, it is all done without a hiccup.

Switching between drafts is a lot faster, as well as using the “new” + “pg up/down” features. Now you can move throughout your drafts at the speed of thought.

Booting up is faster, too, even with the addition of a brand-new animation by artist Mathias Lynge designed to help you center yourself before your writing journey begins and celebrate what this update means for Freewriters.

"I've always been told that E Ink couldn't give instant responses without lag, and now with this update I can finally tell people that's not true."

Beta Tester Will B.

This firmware is more than an update. It's a modern foundation for the future.

This is a brand-new starting point for the Freewrite family. It will enable us to build upon it in brand new ways and continue improving the Freewrite experience ecosystem beyond what has previously been possible.

We're super proud of this monumental effort by the team and can't wait for you to experience it on your own Freewrite Traveler or Smart Typewriter.

Don't take our word for it. Download 3.0 today.

The best part is that all of this new performance is 100% free to you and will be available via over-the-air update for:

  • All Traveler models, including Ghost
  • Smart Typewriter Gen 3 (including Ink, Lemon, and Mint)
  • Hemingwrite Gen 3
  • Valentine

Note: Alpha uses a different screen and software base. The performance on Alpha’s LCD panel is already optimized.

Firmware rolls out automatically and will be available on your device when connected to Wi-Fi. You can also manually check for an update using these instructions:

For a full list of firmware improvements and fixes, please visit our Release Notes page.

Write on!

The Freewrite Team

 

P.S. With every firmware update, we also add another classic author to the screensaver lineup. Last time, it was Agatha Christie. Who can name the new writer this time around?

We’re all just dreaming the impossible dream every time we face the keyboard!

P.S.S. Love the new bootup animation? Read all about the animator, Mathias Lynge, here.

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If you're new here, freewriting is “an unfiltered and non-stop writing practice.” It’s sometimes known as stream-of-consciousness writing.

To do it, you simply need to write continuously, without pausing to rephrase, self-edit, or spellcheck. Freewriting is letting your words flow in their raw, natural state.

When writing the first draft of a novel, freewriting is the approach we, and many authors, recommend because it frees you from many of the stumbling blocks writers face.

This method helps you get to a state of feeling focused and uninhibited, so you can power through to the finish line.

How Freewriting Gives You Mental Clarity

Freewriting is like thinking with your hands. Some writers have described it as "telling yourself the story for the first time."

Writing for Inside Higher Ed, Steven Mintz says, “Writing is not simply a matter of expressing pre-existing thoughts clearly. It’s the process through which ideas are produced and refined.” And that’s the magic of putting pen to paper, or fingertips to keyboard. The way you learned to ride a bike by wobbling until suddenly you were pedaling? The way you learned certain skills by doing as well as revising? It works for writing, too.

The act of writing turns on your creative brain and kicks it into high gear. You’re finally able to articulate that complex idea the way you want to express it when you write, not when you stare at a blank page and inwardly think until the mythical perfect sentence comes to mind.

Writing isn’t just the way we express ideas, but it’s how we extract them in the first place. Writing is thinking.

Or, as Flannery O'Connor put it:

“I write because I don't know what I think until I read what I say.”

Writing isn’t just the way we express ideas, but it’s how we extract them in the first place. Writing is thinking.

 

Freewriting to Freethinking

But how and why does it work? Freewriting makes fresh ideas tumble onto the page because this type of writing helps you get into a meditative flow state, where the distractions of the world around you slip away.

Julie Cameron, acclaimed author of The Artist’s Way, proposed the idea that flow-state creativity comes from a divine source. And sure, it certainly feels like wizardry when the words come pouring out and scenes seem to arrange themselves on the page fully formed. But that magic, in-the-zone writing feeling doesn’t have to happen only once in a blue moon. It’s time to bust that myth.

By practicing regular freewriting and getting your mind (and hands) used to writing unfiltered, uncensored, and uninterrupted, you start freethinking and letting the words flow. And the science backs it up.

According to Psychology Today, the dorsolateral prefrontal cortex goes quiet during flow state. This part of the brain is in charge of “self-monitoring and impulse control” – in other words, the DLPFC is the tiny home of your loud inner critic. And while that mean little voice in your head takes a long-overdue nap, you’re free to write without doubt or negative self-talk.

“With this area [of the brain] deactivated, we’re far less critical and far more courageous, both augmenting our ability to imagine new possibilities and share those possibilities with the world.”

Freewriting helps us connect with ourselves and our own thoughts, stories, beliefs, fears, and desires. But working your creative brain is like working a muscle. It needs regular flexing to stay strong.

So, if freewriting helps us think and organize our thoughts and ideas, what happens if we stop writing? If we only consume and hardly ever create, do we lose the ability to think for ourselves? Up next, read "Are We Living through a Creativity Crisis?"

 

Learn More About Freewriting

Get the ultimate guide to boosting creativity and productivity with freewriting absolutely free right here.You'll learn how to overcome perfectionism, enhance flow, and reignite the joy of writing.

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