What about mountain destinations like Banaue Rice Terraces, Sagada, or Baguio?

The ETravelSim Philippines eSIM works in Baguio, Sagada town, and Banaue town with reliable 4G/LTE coverage at most accommodations and main tourist areas. Coverage drops on remote hiking trails, the deeper sections of the Banaue Rice Terraces, and along mountain roads in the Cordillera region — this affects every Philippine carrier equally because of the terrain. Download offline Google Maps and accommodation details before heading into the mountains, and plan for offline navigation on multi-day hikes.