Orange Pi Zero
CPU: Allwinner H2
RAM: 256/512 MB DDR3(optional)
Flash: TF slot
Wi-Fi, 100M Ethernet
Orange Pi Zero Plus
CPU: Allwinner H5
RAM: 512 MB DDR3
Flash: TF slot, 2MB SPI
Wi-Fi, 1000M Ethernet
Orange Pi Zero Plus 2
CPU: Allwinner H3/H5 (optional)
RAM: 512 MB
Flash: 8GB eMMC, TF slot
HDMI, Wi-Fi, Bluetooth
Orange Pi R1
CPU: Allwinner H2
RAM: 256 MB DDR3
Flash: TF slot, 16MB SPI
Wi-Fi, 100M+100M Ethernet