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.

Software Specs

• Easy to code and debug wirelessly using JavaScript or our 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