Where to Buy SIM Cards - Guide 2026

🚨 Don't Pay Tourist Rip-Off Prices – €10 Unlimited Data SIMs That Actually Work

📱 Spain offers world's best mobile coverage with 5G nationwide, but airport kiosks charge 5x normal prices for inferior plans. Expats discover €5-€15 unlimited data prepaid SIMs lasting 30-365 days from supermarkets, tobacconists, and vending machines.

📶 This 2026 guide reveals carrier-by-carrier speed tests, eSIM options, top-up hacks, and Day 1 airport strategies. Get connected instantly with WhatsApp, Google Maps, and high-speed data from €0.10/GB – no contracts, full English apps.

📋 Table of Contents

• ✈️ Airport & Day 1 SIMs
• 📡 Top 6 Prepaid Providers 2026
• 📱 eSIM Revolution
• 🛒 Where to Buy (Supermarkets/Vending)
• 💰 Unlimited Data Plans
• 🔄 Auto-Topup & Management
• 🏙️ City-Specific Deals

✈️ Airport SIM Strategy – Don't Get Ripped

⚠️ AIRPORT KIOSKS = SCAM: €30 for 5GB/7days vs €10 same plan supermarket.

✅ Day 1 Plan: Buy vending/esim → full coverage → buy monthly plan supermarket Day 2.

📡 Top 6 Prepaid Providers Ranked 2026

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📱 eSIM Revolution – No Physical Card

⚡ Instant activation: Scan QR code → 5 minutes connected. Perfect arrivals without lines.

🏆 Top eSIM Providers

• 🌐 Airalo: €9/20GB 30days (local rates)
• ⚡ Holafly: €19/Unlimited Spain (tourist focus)
• 📡 Maya Mobile: €16/30GB + EU roam

🛒 Where to Buy SIM Cards Instantly

🏪 Tobacconists (Estancos): Every corner, €5-€15 starter packs, English menus vending.

🛒 Supermarkets: Carrefour, Mercadona – €10 unlimited 30days + top-up cards.

📱 Phone shops: Vodafone/Orange official stores, expert help €1 extra.

🗺️ Location Priority

1. 🤖 Airport vending machine (24h)
2. 🚉 Train station kiosks
3. 🏪 Nearest estanco (green sign)
4. 🛒 Dia/Carrefour supermarket

💰 Best Unlimited Data Plans 2026

🔄 Auto-Topup & Number Management

💳 App top-up: All carriers English apps, Google/Apple Pay instant.

🛒 Physical: Supermarket vouchers €5-€50 scratch codes.

🤖 Auto-renew: Set €15/month auto-debit, never worry about credit.

📱 Keep Spanish Number Forever

• ✅ Top-up minimum €2 every 6 months
• ✅ Store as iCloud/Google contact
• ✅ Forward to home number if leaving

🏙️ City-Specific SIM Deals

🇪🇸 Madrid/Barcelona Airports: Best vending machines €9.90/30GB

🍊 Valencia: Mercadona €8/25GB weekly deals

☀️ Málaga Airport: Tourist SIM €12/unlimited 15days (worth it)

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Unlimited 5G data €10/month. Pickeenoo SIM delivery anywhere in Spain.
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Bottom Line: 🎯 Skip airport kiosks. Vending/estanco Day 1 (€10/30GB). Movistar/Orange best speed. eSIM future. Auto-topup forever. €0.10/GB reality!