When comparing Chrome vs Chromium, the Slant community recommends Chromium for most people. In the question“What are the best lightweight web browsers?” Chromium is ranked 1st while Chrome is ranked 9th. The most important reason people chose Chromium is:
Chrome and Chromium are available on almost every device nowadays
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports the latest web standards
Chrome for Android supports HTML5, CSS3, and many APIs.
Pro Syncs with desktop browser
Chrome for Android will sync bookmarks, passwords, history, and open tabs from your desktop.
Pro Very user friendly UI
Pro Backed by Google
Like Android, Chrome is a Google product, which means the two technologies can be expected to grow together and remain compatible.
Pro Preinstalled in most android devices
Most Android devices have google chrome preinstalled as part of ROM.
Pro Use websites offline
Pro Same Product from Google
Best integration solution with OS #MadeByGoogle
Pro No competition for chrome on android
Some says firefox, actually firefox is completely numb and buggy. Opera, firefox, uc browser this all are very much slower in front of chrome. O.K one and only faster browser than chrome is Puffin, but this one is very sticky and ugly user inerface.
Pro Cross-platform
Chrome and Chromium are available on almost every device nowadays
Pro Sandboxing
Every tab and plugin runs in its own subprocess so they will never affect the whole browser ,however that consumes more memory than other browsers
Pro Latest Blink
This is the browser Blink is made for and developed alongside.
Pro Completely Open Source
Both Chromium and and its rendering engine Blink are licensed under the BSD-license which includes no copyleft unlike the GNU or Mozilla Licenses.
Pro Access to Chrome's extensions
Chromium can access the Chrome Web Store and all the extensions hosted there can be installed and used on Chromium.

Pro Supports all of Google Chrome features
As Chrome is based on Chromium they overlap in supported features. Chromium syncs between devices, automatically updates, has great built-in developer tools, installs extensions without a restart, includes a combined text bar for entering URLs and searching and has excellent HTML5 compatibility just like Chrome.
Pro Bare
It does not have any extensions preinstalled and focuses to be a web browser.
Pro BSD license
You can do almost anything with the code.
Pro Gets constant updates
While the Chromium-based browser haev to adapt their code to the update before release, original Chromuim doesn't need it so it gets updated more constantly and frequently.
Pro Chromium sets the standard for Web Browsing
Since Google Chrome is the most used web browser, and that browser along with many others is based on Chromium, Chromium sets the standards for the internet and for security, and Firefox will always be years behind.
Pro Backed by Google
Chromium was first released as a large portion of Chrome's source code as an open source project by Google in september 2008. The idea was to encourage developers to review the underlying code and to contribute in making Chrome cross platform and port it to Mac and Linux as well.
Nowadays Chromium is a large project with a huge community that's standing behind it but still Google continues to take an extremely active role in Chromium development. This ensures the longevity and constant development and improvement of the browser.
Pro Does not come with Google
Unlike Chrome it does come wihout any Google account requirement.
Cons
Con Allows Google to track essentially everything you visit with your browser
Chrome sends usage data to Google.
Con More resource hungry
Con Chrome favors Google's products and tries to satiate Google's data appetite, what hurts the user experience
Con Proprietary
Con Lacks ad-blocking features
Chrome mobile does not support ad-blocking features unlike the Chrome desktop app.
Con Excessive permissions
The permissions required are excessive and intrusive (including record audio) - a few browsers require this, but there are several available that don't
Con SSL Nanny
It is nice that Chrome is strict about SSL warnings, but it would be nice to have an option to connect anyway without needing a secondary browser.
Con Slightly heavier than other options
Chrome uses more system resources than most other browsers, which means it will run slower especially on lower end hardware.
Con Lacks a download manager
Unlike most competitors, Chrome has no built-in download manager.
Con Doesnt support extensions
All extension from chrome web store cannot be used on android version.
Con Lacks privacy options
Con High RAM usage
Due the sandboxing, Chromium also eats a lot of RAM , which can be a problem for machines with smaller RAM.
Con No official builds
There are no official builds available so you have to rely on a third party distributor
Con Not possible to disable WebRTC
Con Fat, slow, and another piece of google spyware
Con Lacks support for certain common media formats
As Chromium avoids bundling any proprietary software, media that requires proprietary codecs or formats such as AAC, H.264, MP3 and Flash will not play by default on Chromium.
Con Can be dangerous / only available as Source
There are plenty of unofficial Chromium distributors and every one of them can disable specific features (like sandboxing) for their build, so you will never know what you get.
Con Under BSD License
