Connectivity & Internet in Zurich

Good to Know

• Fiber (FTTH/FTTS) is available in most Zurich addresses; verify at your specific location before signing a contract, as availability varies by building and provider.
• Switzerland is not part of EU roaming—Swiss prepaid SIM cards work only in Switzerland. Roaming on non-EU cards is expensive; e-SIM is the most cost-effective option for travelers.
• Swisscom dominates market share and offers the most reliable coverage everywhere (including remote areas), but is premium-priced; Sunrise and Salt offer better value in Zurich and major cities.
• e-SIM providers often offer multi-network fallback (Swisscom, Sunrise, Salt) automatically, which is valuable for reliability across city centers to mountain regions.
• Mobile data speeds in Zurich and major Swiss cities are among Europe's fastest; 5G is reliably available in urban centers and along main transport corridors.
• Cable networks (Sunrise/UPC) operate in urban apartment buildings but share bandwidth with neighbors—fiber is preferred for consistent performance.
• 4G is the realistic standard for most of Switzerland; 5G is available in cities but coverage deteriorates above ~2,500 m elevation.
• Prepaid and e-SIM plans for tourists/short-term residents are significantly more expensive per GB than Swiss resident plans due to premium roaming pricing at airports; purchasing in the city is typically cheaper.