How much data do Google Maps, Instagram, and WhatsApp really use while travelling? On average, Google Maps uses 5–10 MB/hour, while Instagram can consume up to 1.2 GB/hour on Reels. To save money and avoid roaming fees, travelers should enable "Low Data Mode," download offline maps, and use an AussieRoam eSIM. AussieRoam provides a cost-effective alternative to expensive international roaming by connecting you directly to local networks at a fraction of the cost.