When comparing Elementary OS vs Deepin OS, the Slant community recommends Elementary OS for most people. In the question“What are the best Linux distributions for desktops?” Elementary OS is ranked 28th while Deepin OS is ranked 52nd. The most important reason people chose Elementary OS is:
Excellent uniformity between all the stock application and an overall extremely clean design with simple animations.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro UI design consistency
Excellent uniformity between all the stock application and an overall extremely clean design with simple animations.
Pro Lightweight & fast
Runs well on limited-resources hardware, including netbooks or chromebooks.
Pro Built on Ubuntu
Built on Ubuntu LTS with all its qualities and support.
Pro If you like MacOSX the UI/UX is similar
Pro Extremely user-friendly
This distribution promises you a very tailored user experience and it does deliver on that promise. The developers provide you with a custom desktop environment and a set of neat programs. And the whole desktop looks simply gorgeous.

Pro Active Google+ community
There is a place where Elementary users can ask their questions and usually get answers pretty quickly. Not only by the other users, but the devs are pretty active themselves, often engaging in the discussions on the hows, whys, and plans of the OS.
Pro Simplicity, limited configurability
Sane defaults with less confusion for new users.
Pro Consistent development practices
All Elementary apps are written in Vala and hosted on Launchpad, and there are standard APIs such as contractor for applications to interact with one another. This is different from most distros, in which apps are written in a variety of languages. This design decision makes it easy to get started developing for Elementary and to understand how the various pieces fit together.
Pro A dedicated StackExchange site
Elementary OS has a dedicated StackExchange site where users can easily find answers to common questions.


Pro With new tweak tools customisation is not a problem
Now the OS is amazingly customisable
Pro Enjoy the simplicity of Deepin's desktop
The desktop interface and apps feature an intuitive and elegant design. Moving around, sharing and searching, etc. has become simply a joyful experience.
Pro Excellent apps
Having Deepin installed also means you have thousands of quality apps to choose from. The apps which come with installation will suit your needs to browse the Internet, listen to music, watch videos, talk with friends, editing documents or simply any task you want to do at home or in your office.
Pro Easy to use
It's very easy to use. You can easily uninstall a program by going to the menu then right-clicking on the preferred app and selecting "Uninstall" option.
Pro Blur and transparent design
Deepin has a blur and transparent design throughout the OS, which makes it one of the most beautiful Linux distros.
Pro Easy to install
Installing Deepin OS is very easy. Even easier than installing Ubuntu!
Pro Supports Flatpak
Deepin OS supports Flatpak. It also has some Flatpak programs installed by default.
Pro Great support for graphics cards
Deepin OS includes a program called "Deepin Graphics Driver Manager" which can easily install a good driver for the graphics card.
Pro Very stable
Since it is based on Debian stable, you will hardly ever get a dependency issue.
Pro Based on Debian
It is based on Debian which is the best Linux distribution for desktops.
Pro Can be made to look like Windows easily
By default, Deepin looks kinda like macOS but it can be made to look like Windows by right-clicking on the dock and changing the mode from "Fashion Mode" to "Efficient Mode".
Pro Best for daily use
Pro Rolling release
It is a rolling release Linux distribution which is quite popular these days.
Pro Great design to the app store
The app store is gorgeous.
Pro Has its own toolkit
It has its own toolkit called "Deepin Tool Kit". And the maintainers themselves use it.
Pro VLC media player works without any issue
In some cases, VLC media player has some problems with Ubuntu or Ubuntu-based Linux distros. That isn't the case with Deepin.
Pro Well-designed in every detail, developers have a professional aproach to the system
Deepin has a sane default set of apps including custom apps of their own design that gives the distro a very consistent look and feel. By working with the community on these tools as well as custom translations there is a great sense of polish when using it that is not often seen when using such a new desktop environment.
Pro Launches programs faster
Programs load and launch faster in Deepin than other Linux distributions. It takes only about 3 seconds to launch Chrome.
Pro Company behind it
The Wuhan Deepin Technology is behind this Linux distribution.
Pro PRO Network Managment
Deepin has the facilities to create VLAN and other configuration like Wifi Hostpot on their GUI.
Pro Quite lightweight
Deepin 15.7 is lighter than Windows 10 and Ubuntu.
Pro Includes a lot of packages in the official repository
The official repository of deepin OS includes over 73,000 packages.
Pro Exciting applications
It has some exciting applications, such as Deepin Graphics Driver Manager which can easily change between free and proprietary drivers without any issue.
Pro Automatically cleans package cache
Deepin automatically cleans package cache. Cleaning package cache is a good thing as it will make the OS much faster and lighter.
Pro Includes both Windows and macOS style interface
Pro Gives warning messages when upgrading packages using apt
Deepin uses their own modified version of apt. When there is a distribution upgrade available and if we try to upgrade by running "sudo apt upgrade", then this modified version of apt gives this warning message, "DDE programs will work abnormally if run this command. Run sudo apt dist-upgrade or sudo apt full-upgrade instead."
Pro Not based on Ubuntu
Some people don't like Ubuntu nor its derivatives.
Pro Seemless transition form Windows to Linux
Easy to install, comes with default packages to typical needs e.g. Chrome, WPS office, System Monitor and a bunch of multimedia utilities. Its easy to install and uninstall applications, it has a great app store and is fast. On same laptop run much faster than Windows 10 did.
Cons
Con UI doesn't let you change anything
Every installation of elementaryOS looks exactly like the same.
Con Old base and applications
The slow release schedule makes the applications outdated. It drags behind Ubuntu LTS (on which it's based) which itself drags behind Ubuntu which is often still quite far behind Arch for example.
Con Outdated or bad default applications
Con Poor Linux community reputation
The devs of elementary OS feel anyone not paying for their Ubuntu respin are not worthy of using it. Which upset a good bit of people. Obviously the core dev team have issues with their community outreach and PR.
Con Quite buggy
Con Very slow development cycle
Elementary does not offer any release date for their stable releases going more with an "it's done when it's done" attitude. Making depending on newer apps a difficulty as well as a poor choice for those that need consistent release schedules for their OS.
Con Not very configurable
Con The desktop doesn't let you to put icons by default
Con Limited and outdated packages
Packages can be very outdated, and many can't be installed from official repos.
Con Doesn't support 32-bit hardwares anymore
One can install pantheon DE from new ubuntu's repo but Elementry OS is not making new ISO's nor is it supporting them. It makes confuzzled to new users.
Con Upper panel requires extra spaces
The upper panel in Elementary OS requires more space. This can be a problem for computers with small monitors.
Con Emacs doesn't work
Emacs crashes due to a partial gnome library update.
Con Heavy animations
It has some animations that don‘t run well on older hardware.
Con Window control button placement may be unintuitive to some
elementary OS has window controls on the left side of the window. It may be less intuitive to users coming from other operating systems that put window controls on the right.
Con No proprietary driver installer
Elementary OS removed the driver installer of Ubuntu.
Con Problems with basic functions
Problems often arise with functions like keyboard layout and touchpad.
Con Boring UI
It can be very boring.
Con Based in China
Con Customization is a bit hidden
GUI is not straight forward for changing GTK+ or QT themes.
Con Deepin store apps not up to date
Con Cannot customize desktop environment
Because the developers have locked down desktop customization is A HUGE detractor against the idea of setting things up how you want.
Con Team doesn't know what to do
Deepin has changed the base 4 times, and the name 3 times. The Desktop Environment also has been changed 4 times.
Con Slow default repos
Download speed for packages from the default repos, is abnormally slow if you don't choose the correct sever.
Con There are issues restarting (on a PC)
Con Pretty laggy
Con Strange development organization
There aren't any sort of improvements over Deepin v15.1. The only changes are icons - they've become better.
Con Very slow installer
Because the servers are in China.
Con Installer lacks features
