Skip the overpriced tourist SIM cards at Galeão Airport — The real connectivity strategy combines Brazilian prepaid data with Rio's integrated transport system. Head straight to any metro station (Uruguaiana, Botafogo, Ipanema/General Osório) and buy a RioCard for R$3, then load it with R$50+ for integrated metro-bus-BRT travel at R$4.30 per journey.

The Metro Rio system connects all major tourist zones: Linha 1 (orange) runs Ipanema-Centro-Tijuca, Linha 2 (green) connects Botafogo-Pavuna through Zona Norte. Most critically, the metro integrates with 'Metro na Superfície' buses reaching Barra da Tijuca and SuperVia trains to sugar loaf cable car station (Estação Urca). Download the 'Moovit Rio' app — Works offline and shows real-time BRT TransCarioca delays.

For data connectivity, buy prepaid SIMs at Shopping Leblon carrier stores (Claro/Vivo/TIM) rather than airport kiosks — Saves R$20+ for identical 15GB tourist plans. Essential for ride-hailing safety: 99Taxi dominates Rio over Uber, especially for favela-adjacent pickups where drivers know safer routes through Complexo do Alemão or Cidade de Deus.

Trem do Corcovado booking hack: purchase tickets online via official website, then use metro integration to reach Estação Cosme Velho (Linha 1 + connecting bus). The scenic cogwheel train through Tijuca National Park requires advance booking during peak season — One-way tickets frequently sell out, stranding tourists at Christ the Redeemer summit without return transport options.