composer require jenssegers/agent

config/app.php

Jenssegers\Agent\AgentServiceProvider::class, // providerに追加

'Agent' => Jenssegers\Agent\Facades\Agent::class, // aliasに追加

$agent->is('Windows');
$agent->is('Firefox');
$agent->is('iPhone');
$agent->is('OS X');

$agent->isAndroidOS();
$agent->isNexus();
$agent->isSafari();

$agent->isMobile();
$agent->isTablet();

$agent->match('regexp');