First of all, it depends on whether the gym has fulfilled the responsibility of reminding, such as whether there is a warning sign in an obvious position (for example, if valuables are carefully lost, please send them to the service desk, etc.). ), and where did you lose your mobile phone (bathroom? Or at the gym? Does the gym provide changing rooms and lockers? )。

Of course, these are all you have to prove, and it is very important to call the police when you lose them. If the above gyms fail to do so, you can claim compensation from the gym, but there must be enough evidence to prove it.

After you pay to enter the gym, the gym is responsible for your personal and property safety.

If the mobile phone is not very expensive, forget it, and you can't spare the time and energy; If it is expensive, consult with the gym first to see if the other party is willing to compensate for some of the losses. There is really no legal way.

The above are personal opinions, for reference only!