https://wccftech.com/broadcom-announces-the-bcm4389-wifi-6e-client-chipset/

The WiFi Alliance announced the new WiFi 6E terminology for 802.11ax operation in the 6 GHz band last month. At CES 2020, Broadcom has published a number of WiFi 6E access point solutions, Broadcom is announcing the BCM4389 client WiFi 6E chipset. Wh should see this new chipset in the next generation of high-end smartphones, the advantages of WiFi 6E offers lower latency, higher throughput, and the availability of more number of 160 Mhz channels.

This newer chipset offers not only to support for the new 6 GHz support with the tri-band simultaneous operation and 160 MHz channel support, but the BCM4389 also provides support for additional power efficiency this is due to 16 nm process technology and architectural improvements. The 16 nm node is in start contrast to the BCM4375, which is built upon a 28 nm node.