1. 1. Templating and Data Binding: AngularDart uses a declarative template syntax that allows developers to easily bind data properties from the component class to the HTML template. On the other hand, React uses a JavaScript extension called JSX, which allows developers to write HTML-like code directly in JavaScript. This JSX code is then compiled to JavaScript by a build step.

2. 2. Component Structure: AngularDart follows a component-based architecture, where components encapsulate both the behavior and display of a part of the user interface. React also uses a component-based approach, but it emphasizes the composition of small, reusable components to build complex UIs. React encourages developers to break down UIs into a hierarchy of smaller, reusable components.

3. 3. State Management: AngularDart provides a built-in state management solution through the use of services and dependency injection. Developers can create services to manage shared state and inject them into components as needed. React, on the other hand, utilizes a single root state object and relies on the concept of props to pass data down the component hierarchy. React encourages the use of libraries like Redux or MobX for more advanced state management needs.

4. 4. Virtual DOM: React is known for its Virtual DOM, which is a lightweight representation of the actual DOM. React efficiently updates only the necessary parts of the DOM by comparing the Virtual DOM with the previous version. This leads to efficient rendering and better performance. AngularDart, on the other hand, does not employ a Virtual DOM and instead uses a change detection mechanism to track changes in the component tree and update the DOM accordingly.

5. 5. Type Safety: AngularDart is built with the Dart programming language, which is statically typed. This means that developers can take advantage of the compile-time type checking and catch type-related errors early in the development process. React, on the other hand, is written in JavaScript, which is dynamically typed. While TypeScript can be used with React to add type checking, it is not a built-in feature.

6. 6. Tooling and Ecosystem: AngularDart has its own CLI (Command Line Interface) tool, AngularDart Playground, and a set of other tools that assist in developing AngularDart applications. It also has a growing ecosystem of libraries and packages specifically built for AngularDart. React, on the other hand, has a large and mature ecosystem of tools and libraries, including the popular Create React App CLI tool and a vast collection of open-source packages available through the npm package manager.

In summary, the key differences between AngularDart and React lie in their templating/data binding approach, component structure, state management techniques, the use of Virtual DOM, type safety, and the tooling/ecosystem available.