How to get only mobile name?

[PCcloob]

How can i get only mobile name?

Result like : your System is "Android" and Model is "Redmi 9s".

I try this :

require_once 'Mobile_Detect.php';
$user_agent=$_SERVER['HTTP_USER_AGENT']; 
$detect = new Mobile_Detect;
if($detect->isMobile()){
your System is "Android" and Model is $detect->devicename.
}

but Not work!

I use Mobile-Detect 2.8.37 and PHP7.3. Thanks.