Features

Wi-Fi
IEEE 802.11b/g/n-compliant
Supports 20 MHz, 40 MHz bandwidth in 2.4 GHz band
1T1R mode with data rate up to 150 Mbps
Wi-Fi Multimedia (WMM)
TX/RX A-MPDU, TX/RX A-MSDU
Immediate Block ACK
Fragmentation and defragmentation
Transmit opportunity (TXOP)
Automatic Beacon monitoring (hardware TSF)
Four virtual Wi-Fi interfaces
Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, andpromiscuous mode
Note that when ESP32-C3 scans in Station mode, the SoftAP channel will change along with the Station
channel
Antenna diversity
802.11mc FTM
Bluetooth
Bluetooth LE: Bluetooth 5, Bluetooth mesh
High power mode (20 dBm)
Speed: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps
Advertising extensions
Multiple advertisement sets
Channel selection algorithm #2
Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna
CPU and Memory
32-bit RISC-V single-core processor, up to 160 MHz
CoreMark score:
1 core at 160 MHz: 407.22 CoreMark; 2.55 CoreMark/MHz
384 KB ROM
400 KB SRAM (16 KB for cache)

8 KB SRAM in RTC
In-package flash (see details in Chapter 1 ESP32-C3 Series Comparison)
SPI, Dual SPI, Quad SPI, and QPI interfaces that allow connection to multiple off-package flash
Access to flash accelerated by cache
Supports flash in-Circuit Programming (ICP)