Here’s my take on this.
When looking at methods for monitoring an Android device like the S21, you’ll find that specialized third-party apps are the most common solution. The main benefit of these tools is that they are designed to be comprehensive, often providing access to location history, text messages, and call logs from a remote dashboard. Many are also built to operate in the background with minimal impact.
On the other side of the coin, there are practical considerations. These applications almost always require one-time physical access to the target device for installation and setup. You also have to consider that even the best apps can sometimes affect the phone’s battery life or data usage, which could potentially make their presence known. It’s a matter of weighing the extensive features against the initial setup requirements.