When comparing ODROID-C2 vs UDOO Dual Basic, the Slant community recommends ODROID-C2 for most people. In the question“What are the best Raspberry Pi alternatives?” ODROID-C2 is ranked 3rd while UDOO Dual Basic is ranked 14th. The most important reason people chose ODROID-C2 is:
The C2 has pretty decent support for Ubuntu and it can be used with it for basic day-to-day operations such as browsing the web and editing documents with LibreOffice among others.
Specs
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Pros
Pro Good support for Ubuntu
The C2 has pretty decent support for Ubuntu and it can be used with it for basic day-to-day operations such as browsing the web and editing documents with LibreOffice among others.
Pro Superior performance compared with other boards
Pro Built-in heatsink
The ODROID C2 has a built-in heatsink which covers the CPU and two of the RAM chips.
Pro Can fit inside Raspberry Pi cases
Since its shape and size closely mimic that of Pi 3, it can fit on most Raspberry Pi cases available.
Pro Will have mainline kernel support
Pro Relatively low power requirements
The board by itself needs about 0.5A to run, but it's advised to use a 2A power supply for when peripherals are attached.
Pro Pretty user-friendly
Even though it is quite powerful and may seem a little scary at first, the Udoo is actually really user-friendly. After hooking it up with a monitor, keyboard and mouse, it's already configured with either Ubuntu or Android and you don't need to do anything more in order to use it as a simple PC for day-to-day use.
Pro Built-in WiFi
The Udoo has a built-in Wifi module. There's no need to buy and use a separate WiFi card.
Pro Arduino hybrid
The Udoo has a separate ARM Cortex-M3 CPU which is the same found on the Arduino Due in addition to its other ARM i.MX6 Freescale CPU which runs either Linux or Android. Making the Udoo perfect for hybrid projects that need both Linux and Arduino capabilities.
Cons
Con No built in WiFi
There is no built-in WiFi, and kernel headers for 3.14 are almost impossible to find, making driver compiling very difficult.
Con Old kernel available
Only the 3.14 branche is available
Con Early revisions use a 2.5mm power socket instead of a USB port
Early revisions of the C2 use a 2.5mm power socket instead of the micro USB port available on the board or any of the other USB ports. While not a drawback in terms of strength of the board, it's a bit annoying having to order a new power supply to work with the C2.
Later revisions of the board can use the USB port for charging. However, ODROID recommends using the power socket if there are several devices attached to the board because they can increase the draw up to 2A and a lot of cheaper USB power adapters won't do 2A.
Con Might have problems with default HDMI resolution when first starting up
It's not unusual for the C2 to have a "Mode not supported" message when first booted up and connected to a monitor through the HDMI port. This can be fixed by logging through SSH and editing the boot.ini on a FAT partition on the SD card to set the correct HDMI resolution and the process is detailed pretty well on the ODROID wiki but it may be out of scope for some users and pretty annoying for the rest.
Con No SATA port
Con Official images are not full distributions
Both Android and Ubuntu images lack some useful software which would be installed out-of-the-box for most Android or Linux devices. For example in Android it lacks the Play Store app and other Google apps. These can of course be installed but need to be done so manually (at least the Play Store) by flashing them from the SD card.