Should I activate my EastESIM before arriving at Tokyo Narita or Seoul Incheon Airport?

Yes, we strongly recommend installing and activating your EastESIM before you even depart for your trip to Asia. You can install it conveniently from home, and its validity period only begins once it connects to a local network in your destination, such as when you land at Tokyo Narita (NRT) or Seoul Incheon (ICN). This proactive approach allows you to bypass potentially slow or unreliable airport Wi-Fi, avoid immediate roaming charges, and instantly access essential services like ordering a ride-share, checking public transport schedules, or contacting your accommodation as soon as you land, ensuring a smooth start to your adventure.