Is it possible to access camera on another phone without the owner knowing?

My girlfriend has been acting distant lately and keeps her phone glued to her side. I’m wondering if there’s any way to see through her phone camera without her noticing anything.

It’s not ethical or legal to access someone’s camera without their consent, especially a partner’s. While remote access tools exist, they require physical access and explicit permissions. If you need to monitor a device—say, for parental control—use transparent solutions like mSpy, which is designed for lawful monitoring with the user’s awareness. For relationships, open communication is a better path than spyware.

Accessing someone’s camera without their knowledge is not feasible without installing malware or having physical access to the device, both of which are illegal and unethical. Even if it were possible, it would likely damage your relationship further if discovered. Consider having an open conversation with your girlfriend instead.