Board Technical Specifications Comparison

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Espressif ESP32-S2-Saola vs. LinkSprite pcDuino2 vs. Next Thing Co. CHIP

	× ESP32-S2-Saola	× pcDuino2	× CHIP
Manufacturer	Espressif	LinkSprite	Next Thing Co.
Price	$ 8.0	$ 59.0	$ 9.0
SoC	Espressif ESP32-S2 (WROVER or WROOM)	AllWinner A10	AllWinner R8
CPU	1× Tensilica Xtensa LX7 (RISC) @ 240 Mhz	1× ARM Cortex-A8 @ 1.0 Ghz	1× ARM Cortex-A8 @ 1.0 Ghz
GPU	-	OpenGL ES2.0, OpenVG 1.1 Mali 400 core	Mali-400
RAM	2.0 MiB	1.0 GiB DDR3	1.0 GiB DDR3
eMMC	1 × soldered	1 × soldered	1 × soldered
USB	1 of which support USB-OTG	1 × host port 1 of which support USB-OTG	1 × host port 1 of which support USB-OTG
Ethernet		1× 10/100
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
Bluetooth	-	-	onboard
Camera	up to 1 x inputs	-	up to 1 x inputs
Audio	-	-	1 × outputs 1 × mic-in
GPIO	43	12	12
PWM	8	1	1
ADC	2	1	-
I2C	2	-	1
SPI	4	-	1
UART	2	-	1
Pin header	-	Shield (Arduino)	-
Dimensions	54 mm x 28 mm	-	60 mm x 40 mm x 12 mm
Software	-	Linux: True Android: 4.2	Linux: True