Nordic recently released news that their bluetooth power consumption is even lower (AirTags uses it). They also released a WiFi chip, but it's more like a co-pr

Nordic recently released news that their bluetooth power consumption is even lower (AirTags uses it). They also released a WiFi chip, but it's more like a co-processor so it's not really a competitor to ESP chips because you will still need a microcontroller. Espressif bluetooth isn't comparable because they still haven't gotten the battery consumption down to uA levels yet :$. On the flip side, Esp is releasing the P4 which is just a microcontroller (no wifi or bluetooth so you'll need an ESP32 for co-processing) as there's things you can't currently do on esp32's such as mipi csi to interface with a wider range of camera modules easily. Lastly, I recently discovered a lot of Chinese IoT stuff you get on Amazon (eg. Tuya and Tasmota) have migrated away from Espressif and use Beken (Google OpenBeken). I think it's more comparable to esp8266's but haven't found much info on it. Risc-v is looking likely to be dominant in the iot segment.