# Bangle.js 2 smartwatch

13 Hacker News commenters recommended Bangle.js 2 smartwatch and 0 criticized it, November 2025 to November 2026. It was recommended in 7 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Recommended for its open, hackable JavaScript platform and battery life that lasts days; critics find the single physical button limiting.

## Why people recommend it

- Long battery life lasting days (3 comments): "it has the main things I want from a tool : notifications, long battery life, easily-visible screen in all conditions" ([source](https://news.ycombinator.com/item?id=48591606)) "the battery lasts me a week and it's more hackable than Pebble ever was" ([source](https://news.ycombinator.com/item?id=45962032)) "runs just fine for days without a battery recharge" ([source](https://news.ycombinator.com/item?id=47061523))
- Hackable, runs JavaScript apps (3 comments): "I love(d) my bangle.js. Such a true hacker device. Really fun to use WebUSB and push JavaScript files as apps." ([source](https://news.ycombinator.com/item?id=47878777)) "When your watch supports the most common computer language on Earth, it is hard to go wrong with it." ([source](https://news.ycombinator.com/item?id=47146397)) "the battery lasts me a week and it's more hackable than Pebble ever was" ([source](https://news.ycombinator.com/item?id=45962032))
- Fun to use with great community (2 comments): "I love(d) my bangle.js. Such a true hacker device. Really fun to use WebUSB and push JavaScript files as apps." ([source](https://news.ycombinator.com/item?id=47878777)) "It's very fun product with a great community." ([source](https://news.ycombinator.com/item?id=48587433))

## What people warn about

- Only one physical button (2 comments): "only having one physical button kinda kills it for me" ([source](https://news.ycombinator.com/item?id=45974802)) "Ticks the boxes, but not the buttons." ([source](https://news.ycombinator.com/item?id=47074897))

## Alternatives hackers recommend

- [Apple Watch](https://hackerapproved.com/p/apple-watch.md): 246 recommend
- [Pebble smartwatch](https://hackerapproved.com/p/pebble-smartwatch.md): 117 recommend
- [Apple Watch Ultra](https://hackerapproved.com/p/apple-watch-ultra.md): 33 recommend
- [Garmin Vivoactive](https://hackerapproved.com/p/garmin-vivoactive.md): 9 recommend
- [Amazfit smartwatch](https://hackerapproved.com/p/amazfit-smartwatch.md): 9 recommend

## Where to get it

- [See price on Amazon](https://www.amazon.com/s?k=Bangle.js+2+smartwatch+Espruino&tag=hackerapprove-20) (affiliate link)
- [Official site](https://www.espruino.com/Bangle.js2)

## Cite as

Hacker Approved, "Bangle.js 2 smartwatch", https://hackerapproved.com/p/bangle-js-smartwatch/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).