Hacker News: erohead

New comment by erohead in "Pebble Round 2"

erohead — Tue, 06 Jan 2026 21:42:18 +0000

Here's my answer (as the founder of Pebble - both eras!) on this. We're a small company this time (standing on the shoulders of giants by using open source PebbleOS - thank you google!).

We are excited to make new devices, but wary about over-promising. We'd rather under-promise and over-deliver. So far, we have only received a few requests for warranty support for our first new watch (Pebble 2 Duo) and we have provided support for everyone who has asked.

New comment by erohead in "Pebble Round 2"

erohead — Tue, 06 Jan 2026 16:00:24 +0000

Generally most sleep tracking products use actigraphy (measurements of your movement) to track sleep. Pebble partnered with researchers at Stanford back in the day to produce an algorithm for our operating system, which worked quite well and is now open source!

You can read the code and see how the sleep tracking algorithm works here - https://github.com/coredevices/PebbleOS/blob/main/src%2Ffw%2...

New comment by erohead in "Pebble Round 2"

erohead — Tue, 06 Jan 2026 15:52:25 +0000

Unfortunately no - it basically had zero usage

New comment by erohead in "Pebble Round 2"

erohead — Mon, 05 Jan 2026 23:07:44 +0000

It has a built in weather app and hundreds of watchfaces that show weather as well.

New comment by erohead in "Pebble Round 2"

erohead — Mon, 05 Jan 2026 23:06:37 +0000

Sleep tracking works well on all Pebbles!

New comment by erohead in "Pebble Round 2"

erohead — Mon, 05 Jan 2026 23:06:07 +0000

Would make it thicker, I wanted it to be very thin.

New comment by erohead in "Pebble Round 2"

erohead — Sat, 03 Jan 2026 00:28:47 +0000

sharp, same display that's in Garmin MIP watches (like Forerunner 255) but tbh looks much better in Round 2!

New comment by erohead in "Pebble Round 2"

erohead — Sat, 03 Jan 2026 00:28:20 +0000

No plans to offer more SKUs, sorry. Already have enough to manage.

New comment by erohead in "Pebble Round 2"

erohead — Fri, 02 Jan 2026 18:16:39 +0000

still works fine with iOS, will work even better in EU next year when Apple is forced to comply with the DMA.

New comment by erohead in "Pebble Round 2"

erohead — Fri, 02 Jan 2026 16:37:14 +0000

Still doing our water resistance testing on Round 2, but that is the target (30m water resistance)!

New comment by erohead in "Pebble Round 2"

erohead — Fri, 02 Jan 2026 16:15:03 +0000

> Screws

Nope! No screws on this one.

> Is that a matter of adapting the watchfaces to the bigger screen?

Yes, exactly.

New comment by erohead in "Pebble Round 2"

erohead — Fri, 02 Jan 2026 15:09:16 +0000

Proud of this one! Feel free to ask any questions you might have.

(Pebble founder)

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:24:37 +0000

There are several different options you can pick from between 50MB and 600MB.

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:24:03 +0000

It has a hard cutoff built into the firmware at two minutes so after that point the recording stops and the ring turns off until the next button press.

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:23:36 +0000

This isn't a question I understand, but I appreciate you writing it. At the end of the day it's up to you - if you think this is useful, please use it. If you don't want to use it because of the 4.7 grams of e-waste, I do get it.

All consumer tech is intentionally disposable. That's life. Especially for tiny smart rings that are water resistant. It's a ring, it's going to get banged up, you'll lose it or smash it. It's new tech - there will always be a new version, etc.

Better to have loved and lost than to have never loved at all.

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:20:35 +0000

You could write software to do that if you wanted to

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:20:17 +0000

The firmware is not open source. I licensed it from a friend of mine.

You can definitely assign different actions to button presses, that's handled by the phone side

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:19:46 +0000

1. smallest size is 6 2. yes! You can send your recordings to any webhook. 3. yes! can even shower with it on

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:19:17 +0000

The app is 100% open source so you could add that feature if you wanted to. We'd love a PR for that!

New comment by erohead in "Pebble Index 01 – External memory for your brain"

erohead — Wed, 10 Dec 2025 18:18:42 +0000

Technically possible and it's a feature that will be supported