Orange Pi One is a single-board microcomputer with a quad-core ARM Cortex-A7 H3 processor. Features of the processor: four Cortex-A7 cores (1.2 GHz), video-core Mali 400MP2 (600 MHz). RAM controller supports DDR2 and DDR3 chips with normal and reduced voltage supply. Orange Pi One has 512 MB of DDR3 available. Each side of the board is soldered with one Samsung chip with 256 MB capacity.
A microSD memory card with a maximum capacity of 64 GB is connected via an SDIO slot. There is an Ethernet port (100 Mbit/s), one full-size USB 2.0 port, and one mini-USB port with OTG support.
The power consumption of “Orange” reaches 10 watts and it is recommended to use a power adapter with an output voltage of 5V and a current of 2A. Powering the board via USB-OTG is not supported. You can connect a monitor via HDMI, CSI camera with up to 5-megapixel resolution. Orange Pi One has 40 programmable general-purpose pins (GPIOs). The comb is fully compatible with the Raspberry Pi B+.
Orange Pi One supports a wide range of operating systems: Android, Ubuntu, Debian, ArchLinux, Gentoo, OpenSUSE, Kali, Fedora, Raspberry Pi Image.
Orange Pi One is compatible with components for other Orange series computers – more powerful Orange Pi PC and Orange Pi Lite with Wi-Fi module instead of Ethernet port.
1 x Camera Serial Interface (CSI) connector, supports: 8-bit YUV422 CMOS, CCIR656 protocol for NTSC and PAL, SM pixel camera sensor, video recording up to 1080p@30fps
HDMI with HDCP, HDMI CEC, HDMI 30 function
USB 2.0 ports: One USB 2.0 host, one USB 2.0 OTG
40-pin expansion bus: GPIO (General Purpose I/O Interface), Power (+5V, +3.3V and GND), some pins can be used as UART, I2C, SPI or PWM
Power indicator, status indicator
5V 2A (4.0mm/1.7mm), board power via OTG is not supported
2,71 x 1,88 inches
Android, Lubuntu, Debian, Raspbian
For a relatively small price, you get a platform with lots of features. I think it’s perfect for getting acquainted with Linux.
If you compare it with the Raspberry Pi, then as such there are no significant differences, both have their advantages and disadvantages, for example on the Raspberry there is no normally working Android, on Orange is very even faster, though it is warm.