Board Technical Specifications Comparison

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Wandboard Wandboard Dual vs. Espressif ESP32-S2-Saola vs. Xunlong Software Orange Pi 3

	× Wandboard Dual	× ESP32-S2-Saola	× Orange Pi 3
Manufacturer	Wandboard	Espressif	Xunlong Software
Price	$ 99.0	$ 8.0	$ 35.0
SoC	NXP i.MX6 Dual Lite	Espressif ESP32-S2 (WROVER or WROOM)	AllWinner H6
CPU	2× ARM Cortex-A9 @ 1.0 Ghz	1× Tensilica Xtensa LX7 (RISC) @ 240 Mhz	4× ARM Cortex-A53 @ 1.8 Ghz
GPU	Vivante GC 880 + Vivante GC 320	-	Mali T720
RAM	1.0 GiB	2.0 MiB	2.0 GiB
eMMC	1 × soldered	1 × soldered	1 × soldered
USB	1 × host port 1 of which support USB-OTG	1 of which support USB-OTG	4 × host ports 1 of which support USB-OTG
Ethernet	1× 1 Gbps		1× 1 Gbps
Wi-Fi	On-board Wi-Fi without external antenna 2.4Ghz b/g/n	On-board Wi-Fi without external antenna 2.4Ghz b/g/n	On-board Wi-Fi without external antenna 2.4Ghz b/g/n 5Ghz a/n/ac
Bluetooth	onboard	-	onboard
Camera	up to 1 x inputs	up to 1 x inputs	-
Audio	1 × outputs 1 × line-in 1 × mic-in 1 × spdif-out	-	1 × outputs 1 × mic-in
GPIO	10	43	26
PWM	-	8	1
ADC	-	2	-
I2C	1	2	1
SPI	1	4	1
UART	1	2	2
Dimensions	95 mm x 95 mm x 22 mm	54 mm x 28 mm	90 mm x 64 mm
Software	Linux: True Android: 5.0	-	Linux: True Android: 7