Wifi Lora32 deep sleep power consuption difference between 868 and 433

I have been using WiFi LoRa32 ESP32 868Mhz version, and observed a deep sleep consumption at around 0,8mA.
Then I have ordered the same module with 433Mhz version. With exactly the same software I observe a 0,028mA deep sleep consumption !!!

Both modules are powered by battery.

Can somebody tell me if I am wrong, or what is the reason of this huge deep sleep consumption difference ?
Any chance to read 0,028mA on 868Mhz version ?

Thank you