Esp32s2 vs esp32 Comparison Table

spec esp32 esp32s2
CPU single core or dual core LX6 single core LX7
SRAM 520KB 320KB
ROM 448KB 128KB
ext spi-ram support 8MB 128 MB total(not confirm)
ext spi-flash support 16MB 1 GB(not confirm)
GPIOs 34 43
Cap Touch IO 10 14
PKG QFN48 66 or 55 or 7*7 QFN56 7*7
WiFi 802.11 b/g/n 802.11 b/g/n and TOF(Time-of-Flight)
BT v4.2 BR/EDR/BLE None
LCD None 8/16/24bit parallel RGB/8080/6800
i2s 2 1
DVP 8 or 16-bit in i2s0 or i2s1 8 or 16-bit in i2s0
USB None Full speed USB OTG
SDIO Yes None
SPI 4 4
ETH Yes None