Nowadays SOS features come in every smartphone, it’s a very useful feature but sometimes it trigger unnecessarily. Hence you are looking for how to disable the SOS feature on your iPhone. The SOS setting is meant to allow quick access to emergency services but can be unwanted at times. Here are the simple steps to turn it off:

1. First, open the Settings app.
2. Then go to the Emergency SOS section where the SOS slider is located.
3. By default, this will be on, slide it to the off position to disable the emergency calling feature.

Source: https://techybrain.net/how-to-turn-off-sos-on-iphone/