Selenium Docker vs Selenium Cloud
Testing on Selenium Cloud is better.

Trusted by more than 50,000 customers globally
Docker Selenium vs Cloud Selenium for Website and App Testing
By utilizing Docker containers, users and set up and package software applications with all elements required to build the said application. This includes databases, libraries, and other dependencies. If you dockerize Selenium tests, there are a number of limitations you will face while testing software in real world conditions. In order to smoothly and effectively test your websites and apps across real world scenarios, it is essential to use a cloud-based Selenium grid connected to real devices

Dockerize Selenium vs Cloud Selenium Comparison
Use the differences between Selenium Docker and Selenium Cloud to help you determine what features and functionality to test in Selenium Docker and what to test on Selenium Cloud.
- Criteria
Upgrade your tests with a Selenium Grid on Cloud
By migrating automated testing to a Selenium Cloud, the software development process becomes notably refined. Make things smoother for the entire testing lifecycle and eliminate pain points by choosing a platform that is designed for developers. Deliver quality software with ease and within competitive deadlines. Ship with confidence, every time.