Board Technical Specifications Comparison

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TechNexion PICO-IMX6UL vs. Optimus Embedded Systems Prime vs. Espressif ESP32-S2-Saola

	× PICO-IMX6UL	× Prime	× ESP32-S2-Saola
Manufacturer	TechNexion	Optimus Embedded Systems	Espressif
Price	-	$ 125.0	$ 8.0
SoC	NXP i.MX6 UltraLite	Rockchip RK3399	Espressif ESP32-S2 (WROVER or WROOM)
CPU	1× ARM Cortex-A7 @ 530 Mhz	2× ARM Cortex-A72 @ 2.0 Ghz 4× ARM Cortex-A53 @ 1.5 Ghz	1× Tensilica Xtensa LX7 (RISC) @ 240 Mhz
GPU	-	Mali-T860 MP4	-
RAM	1.0 GiB	4.0 GiB DDR4	2.0 MiB
eMMC	1 × soldered	1 × soldered	1 × soldered
USB	1 × host port 1 of which support USB-OTG	2 × host ports 1 of which support USB-OTG	1 of which support USB-OTG
Ethernet	1× 10/100	1× 1 Gbps wake on lan supported
Wi-Fi	-	On-board Wi-Fi without external antenna 2.4Ghz b/g/n 5Ghz a/n/ac	On-board Wi-Fi without external antenna 2.4Ghz b/g/n
Bluetooth	-	onboard	-
Modem	-	onboard	-
Camera	-	up to 3 x inputs	up to 1 x inputs
Audio	-	1 × outputs 1 × line-in 1 × mic-in 1 × I2S	-
GPIO	9	40	43
PWM	1	-	8
ADC	-	-	2
I2C	-	2	2
SPI	-	2	4
UART	-	1	2
CAN	1	-	-
Pin header	-	HAT (Raspberry Pi)	-
Dimensions	36 mm x 25 mm x 4 mm	65 mm x 85 mm x 2 mm	54 mm x 28 mm
Temperature	-	-40.0°C - 85.0°C	-
Software	Linux: True	Linux: True Android: Android Windows: Embedded ARM	-