Bangle.js 2 is a Hackable, Open Source Smartwatch - OMG! Ubuntu!
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Looking for an open source smartwatch you're in total control of? If so, check out the Bangle.js 2 which is currently crowdfunding on Kickstarter. This

Looking for an open source smartwatch you’re in total control of? If so, check out the Bangle.js 2 which is currently crowdfunding on Kickstarter. This hacker-friendly piece of horological hardware is the brainchild of Espruino developer Gordon Williams. Much like Williams’ earlier efforts in this area, the Bangle.js 2 runs on JavaScript.

An open-source online “app store” is also available where you can browse apps created by others, and quickly ‘download’ them to the watch itself wirelessly.

The watch is an off-the-shelf model from China. However, all of the software and firmware that runs on it is open source, having been reverse engineered and retro-fitted to it.

Gordon Williams has run 4 crowdfunding campaigns before and delivered on all of them, which should offer some reassurance should you need it.

See https://www.omgubuntu.co.uk/2021/09/bangle-js-2-is-a-hackable-open-source-smartwatch-that-runs-javascript

#technology #opensource #smartwatch #hacking

@freely
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94M

JS for embedded 🤔

@Helix@feddit.de
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34M

They want to replace Java with JS on smartcards, too. Why not at least TypeScript?

@pinknoise
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14M

How about wasm + standardized (non-oo!) interfaces. Then everyone can just use their favourite language and it’s faster and wastes less space.

Tmpod
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14M

My first reaction too. Stuff like PineTime use C and it is already difficult to not exceed a he system’s resources…

@mrpalmer16
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74M

I miss my Pebble.

GadgeteerZA
creator
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44M

Yep me too. Think I have two of them still - batteries lasted and could view in bright sunlight.

m-p{3}
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34M

The Timeline UI was great at showing upcoming events, the weather, etc.

It made so much sense.

⁠ ︎
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5
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4M

This is actually pretty neat, my current watch is a Chinese knockoff modded to run Russian CFW, it only lasts about 2 weeks, and cost me $70. This one is a bit cheaper, has similar features, and looks much easier to customize. There’s one issue thought:

The article says it’ll last 4 weeks on a single charge but according to the video it’s only 2 weeks, so which is it?

@tree
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34M

It was 2 weeks but then he improved the firmware.

The idle power draw of Bangle.js 2 is now down from 1.3mA to 0.3mA. We’ve mentioned 2 weeks battery life as a conservative estimate in the campaign but we’ve just blown past that. You should now be looking at around 1 month of battery life if you’re just using it for looking at notifications and the time.

kazutrash
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54M

Bro that’s insane I’m willing to buy it for sure and it’s so affordable

m-p{3}
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34M

So it’s basically the SMA Q3 with an open-source firmware

https://hackaday.io/project/175577-hackable-nrf52840-smart-watch

GadgeteerZA
creator
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34M

That’s what the article states: “This watch is now available, pre-programmed with Espruino on KickStarter! https://www.kickstarter.com/projects/gfw/banglejs-2-the-open-smart-watch

m-p{3}
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24M

Pledged for one :)

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