> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Bangle.js - Hackable Javascript Smart Watch

**Type:** Product page · **SKU:** ADA4811 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/bangle-js-hackable-javascript-smart-watch.html ([markdown](https://core-electronics.com.au/bangle-js-hackable-javascript-smart-watch.html.md))

Bangle.js is an open, hackable smartwatch that anyone can code for - and best of all it's open source so you don't have to worry about a server getting shut down and losing functionality - it's fully self-sufficient! You can easily install new apps from the web or develop your own using JavaScript or a graphical programming language (Blockly). All you need is a Web Browser (Chrome, Edge, or Opera), and you can upload apps or write code to run on your watch wirelessly! Bangle.js is waterproof and AI-enabled and comes with Bluetooth Low Energy, GPS, a heart rate monitor, an accelerometer, and more.

## Pricing

- **Price:** $209.95 (inc GST) — $190.86 AUD, exc GST
- **Quantity discounts:** 10+ $185.14 (exc GST) · 50+ $181.32 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA4811:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA4811:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

**Bangle.js** is an open, hackable smartwatch that anyone can code for - and best of all it's open source so [you don't have to worry about a server getting shut down and losing functionality ](https://web.archive.org/web/20180124230148/https://www.theverge.com/2018/1/24/16928792/fitbit-smartwatch-pebble-end-support-date-june)- it's fully self-sufficient! You can easily install new apps from the web or develop your own using JavaScript or a graphical programming language (Blockly). All you need is a Web Browser (Chrome, Edge, or Opera), and you can upload apps or write code to run on your watch wirelessly! Bangle.js is waterproof and AI-enabled and comes with Bluetooth Low Energy, GPS, a heart rate monitor, an accelerometer, and more.

**Software Specs**

- Easy to code and debug wirelessly using JavaScript or Adafruit's graphical editor (based on Blockly)
- Pre-programmed with the Espruino Open Source JavaScript interpreter
- Vast majority of JavaScript ES5 features and many ES6 features including Regular Expressions, Promises, Arrow Functions, Template Literals
- 40kB RAM for program memory/variables
- Bluetooth 4.2 Advertising, Central and Peripheral mode support with built-in Nordic UART service
- Graphics library with Vector fonts, bitmap rotate & scale
- Tensorflow Lite for Microcontrollers AI
- Wear-levelled flash filesystem
- Heatshrink compression
- Upload functions written in C or ARM Assembler
- Built-in wireless debugging
- VT100 Terminal support on LCD
- Program with Web-based Web Bluetooth IDE or Node.js-based command line tools
 
**Hardware Specs**

- IP68 Waterproof: up to 10m underwater
- Nordic 64MHz nRF52832 ARM Cortex-M4 processor with Bluetooth LE
- 64kB RAM 512kB on-chip flash, 4MB external flash
- 1.3 inch 240x240 16 bit LCD display with 2 zone touch
- GPS/Glonass receiver (UBlox)
- Heart rate monitor
- 3 Axis Accelerometer (with Pedometer)
- 3 Axis Magnetometer
- Vibration motor
- 350mAh battery, 1 week standby time
- 5 x 5 x 1.7 cm case, plastic with stainless steel ring
- Can be disassembled with just 4 screws
 
**Support**

- For product support, please visit [Bangle.js Troubleshooting](https://www.espruino.com/Troubleshooting+Bangle.js)
- [Bangle.js Getting Started Guide](https://www.espruino.com/Bangle.js+Getting+Started)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/4/8/4811-03.jpg)