Will I have internet coverage while trekking in Sapa, Vietnam, or other remote Asian areas?

While EastESIM strives for the widest possible coverage, connectivity in truly remote, mountainous, or heavily forested areas, like during a trek in Sapa, Vietnam, or deep within the jungles of Borneo, can be limited. You'll typically find reliable 4G/LTE in major towns and tourist hubs such as Lao Cai and Sapa town. However, as you venture deeper into ethnic minority villages or ascend higher into the rice terraces, signal strength may decrease or become intermittent. We connect to the strongest local networks like Viettel, but even they have geographical limits in challenging terrains.