A few weeks ago, I shared the smart ring protector I designed here. I was tired of the protectors currently on the market and wanted to create an alternative that actually solved their main problems, so I showed you the design I had come up with.

After reading your responses and seeing the positive feedback, I’ve decided to move forward and actually build it.

This is what we’re trying to build:

We don’t want to make simply another cover for smart rings.

We want to design a piece that truly fits the way you train.

01 — That it looks good

Your ring should still look like what it is:

A quality piece of design.

Not a shapeless piece of silicone.

Not a cover that makes your ring look like a piece of garden hose.

We want the protection to be part of the design too: a clean, athletic aesthetic that protects your ring without compromising its appearance while it actually protects.

02 — That works when you actually need it

It’s not designed simply to protect your ring throughout the day.

It’s designed for demanding workouts.

Barbells, impacts, the floor, sweat, grip...

The goal is for you to train without worrying about your ring, while the protector continues doing its job session after session.

Without slipping. Without coming loose. Without getting in your way while you train.

It needs to be durable, comfortable, and secure, even during the most demanding workouts.

03 — That it's not uncomfortable

Unlike other covers that make the ring too bulky, our goal is to keep the volume to an absolute minimum.

It needs to protect your ring while being thin enough that it doesn’t get in your way and allows you to train comfortably.

Comfort without compromising protection.

And this is just the beginning.

Now we want to build it with you.

Because before we manufacture the final product, we want to know what you would improve.

I’ve put together a page where you can follow the project and see how it develops:

(LINK IN MI PROFILE)

Quick question for those who seriously train with their smart ring: do you keep it on, or take it off?

I used to take mine off to avoid damaging it, but I always hated losing the data that matters most to me and didn´t want to buy other device.

I went through different covers. Honestly, they all look terrible. They make your smart ring look like a cheap piece of plastic, don’t offer enough protection during workouts, and most of them are just uncomfortable to wear.

I’m a mechanical engineer, so I eventually decided to design my own.

After several iterations, I wanted to share what I’m currently working on (photos attached).

It’s still just a concept. I have the design, and I’ve generated some images to show what the protector could look like on the hand. It’s definitely not finished yet.

I’d love to hear what you think — honest reactions are welcome.

I've been training with my smart ring, mostly strength work 5-6 days a week. The thing that always bugged me: the one hour of my day where I'm actually doing exercise is the one hour with no data, because I take the ring off to avoid scratching it on the bar, And I didn't want to buy another health wearable like a Whoop or a smartwatch.

So I went through different covers. Some was so thick it kept catching on my other fingers. Other gripped fine but looked like I was wearing a piece of garden hose. Others slipped off the ring every other set.

So out of frustration I started designing my own. After a few iterations this is where I've landed — photos attached.

It's still a concept and I'm sure I'm missing things. I'd love to hear what you think — honest reactions welcome.

After months reading this sub I finally built the thing I kept wishing existed, and I'd rather get torn apart by people who actually plunge than by my own confirmation bias. So: roast away.

The two things that always scared me in the DIY threads here were electrical safety with all that condensation, and the food-grade painted-steel liner. So those were the two things I refused to compromise on.

Where it landed:

• Interior: AISI 304 stainless steel, not a liner over painted freezer metal. Easy to sanitize, no funky smell buildup.
• Exterior: phenolic HPL compact board — the stuff they use for high-end wet-room furniture. Doesn't care about splashes or humidity.
• Electrics: integrated RCD/GFCI protection built in. This was the whole point for me after reading the shock stories here.

Fits someone up to about 1.90m with full shoulder immersion.

What I'm honestly unsure about and would love input on:

1. For those who've run stainless vs. plastic liners long-term — any maintenance gotchas I should design around before I make more of these?

2. What's the one feature your current plunge is missing that you'd have paid extra for on day one?

3. Water changes: with no sanitation/filtration, how long are you realistically keeping the same water before it turns? And for those running filtration or ozone/UV — how much longer does it actually buy you?

Happy to answer anything about the build. Thanks for all the threads that got me here.