1. Template Engine: Blade is the template engine used in Laravel, which uses simple and easy-to-read syntax to create dynamic content. On the other hand, Django Channels do not have a specific template engine and rely on Django templates for rendering dynamic content.

2. Real-time Web Applications: Django Channels is specifically designed for building real-time web applications by adding WebSockets and background task support to Django. Blade, on the other hand, focuses on providing a clean and efficient templating engine for server-side rendering.

3. Framework Integration: Blade is tightly integrated with Laravel, making it seamless to work with resources such as controllers, models, and routes within the framework. Django Channels, on the other hand, is an independent package that needs to be added to an existing Django project to enable WebSocket functionality.

4. Concurrency: Django Channels allows for handling multiple asynchronous tasks simultaneously, making it suitable for applications that require high concurrency. Blade, on the other hand, lacks built-in support for concurrency handling and is more suited for traditional request-response cycle applications.

5. Scalability: Django Channels provides built-in support for scaling real-time applications horizontally by adding more worker processes to handle incoming WebSocket connections. Blade, being a template engine, does not directly impact scalability but relies on the underlying Laravel framework for scaling applications effectively.

6. Learning Curve: Blade has a relatively simpler syntax and is easy to learn for beginners compared to Django Channels, which requires understanding of Django as well as additional concepts related to asynchronous programming and real-time communication.

In Summary, Blade and Django Channels differ in terms of template engine, real-time capabilities, framework integration, concurrency, scalability, and learning curve.