AirSIM: Reusable overseas data SIM card that's good for travel

"During a recent working trip to Tokyo, the AirSIM performed admirably and without lag. Compared with the Wi-Fi routers I usually rent, the download and upload speeds using a Samsung Galaxy Note8 felt faster and the connection was more reliable." 

- Trevor Tan, Deputy Tech Editor, ST

https://www.straitstimes.com/tech/smartphones/reusable-overseas-data-sim-card-good-for-travel

Source:

THE STRAITS TIMES