SBCs are still smaller and cheaper. One of the first was CHIP computer, very popular small SBC with WiFi connections. Then RASPBERRY PI FOUNDATION released Raspberry Pi Zero - Pizero. Everyone are expecting pizero on store and in this moment coming Orange Pi Lite and One. The big rival of Pizero and CHIP computer.
You can choose two versions of Orange Pi - A (Lite) and B (One).
Both version contain:
Allwinner H3 quad core Cortex A7 @ 1.2 GHz
ARM Mali-400MP2 GPU up to 600 MHz
512 MB DDR3 RAM
micro SD card slot
Video & Audio Output ? HDMI
CSI Interface for Camera
40-pin Raspberry Pi compatible header
3-pin UART header for serial console
B version (One) contains Ethernet connections which supports 10/100 Mbit and only 1x USB 2.0.
A version (Lite) contains WiFI connections and 2x USB 2.0.