Is the mobile sim thing in your phone autark enough to communicate without SIM

I don't know (obviously), but the OS is infected, through staatstrojana, 0click0day, whatever >> taking out the SIM card, leaving phone on >> malware brings GPS and other sattelite systems into play to get you pretty preciesly located. Your tour will be uploaded as soon as freifunk or other hotspots are in reach or just via your own internet connection eg. So one could argue, there is no need. its built in china, firmware, too they keep this tool for themself (meaning using it exlousivly in China, since the basestation are not.. wait. you dont need that part. you can write firmware to transfer that data between xiaomi huawei and so on, its jnder OS layer, so not that easily to look at from there) thank for your attention, friends. please don't reply mila, you have users, trust me!

SIM is Subscriber Identity Module, so depending on how the Infrastructure in your country works and how the ISP does things, yes. if you have an e-sim capable device thats compromised, youre literally outa control