2026 Cheapest Unlimited Mobile Plans

Here are the cheapest unlimited mobile data plans in Bangkok (Thailand, 2026) — with real plan names, prices, speeds, and what “unlimited” actually means (very important).

Thailand’s 3 Main Providers

• AIS → best coverage
• TrueMove H → fastest + promos
• DTAC → cheapest

👉 All offer unlimited data plans with different speeds

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💸 🏆 TOP 5 CHEAPEST UNLIMITED DATA PLANS (2026)

🥇 1. DTAC “Go Unlimited 4–10 Mbps”

• 💰 299–399 THB/month
• 📶 Unlimited data (speed capped)
• ⚡ Speed: ~4–10 Mbps
• 📞 Some include free social apps

👉 CHEAPEST TRUE unlimited plan in Thailand
✔ Good for YouTube, browsing, maps
❌ Not ideal for heavy HD streaming

📊 DTAC is widely known for lowest-cost unlimited options

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🥈 2. TrueMove H “Unlimited 5G (Speed-Limited)”

• 💰 300–699 THB/month
• 📶 Unlimited data
• ⚡ Speed tiers: 6 Mbps / 10 Mbps / 15 Mbps
• 📞 Often includes free calls

👉 Best balance of price + speed

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🥉 3. AIS “Unlimited 10 Mbps Plan”

• 💰 ~482 THB/month
• 📶 Unlimited data
• ⚡ Stable 10 Mbps
• 📞 Free call bundles

👉 Best for reliability outside Bangkok

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🏅 4. TrueMove “SIMเทพ (God SIM)” (Best value long-term)

• 💰 ~2,000–4,000 THB/year
  👉 (~170–330 THB/month equivalent)
• 📶 Unlimited data
• ⚡ 6–15 Mbps depending on plan

👉 BEST hidden hack in Thailand
✔ Cheapest long-term unlimited

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🏅 5. AIS / TrueMove FULL SPEED Unlimited (No cap)

• 💰 899–1,299 THB/month
• 📶 TRUE unlimited 5G (no throttling)
• ⚡ Max speed

👉 Only option for:

• Heavy streaming
• Gaming
• Hotspot use

📊 True unlimited high-speed plans cost ~899–1299 THB

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⚠️ IMPORTANT: “Unlimited” in Thailand Explained

There are 3 types of unlimited plans:

1. 🟢 Cheap unlimited (MOST COMMON)

• Unlimited data
• BUT speed capped (2–15 Mbps)

👉 This is what you want for cheap living

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2. 🟡 Hybrid unlimited

• High-speed data (20–100GB)
• Then unlimited slow speed

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3. 🔴 True unlimited (expensive)

• No speed limit
• Costs 900–1,300 THB/month

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📊 🆚 BEST PLANS COMPARISON

Plan	Price	Speed	Best For
DTAC Unlimited	299 THB	4–10 Mbps	Cheapest
TrueMove 6–15 Mbps	300–699 THB	Medium	Best value
AIS 10 Mbps	~482 THB	Stable	Rural use
True “God SIM”	~170–330 THB	6–15 Mbps	Long-term cheapest
Full-speed unlimited	899–1299 THB	Max	Heavy users

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📍 Where to Get These Plans in Bangkok

• 7-Eleven (cheapest SIM setup)
• AIS Shop
• True Shop
• DTAC Shop

👉 SIM card: ~49 THB
👉 Activate plan via app or staff

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💡 Real Insider Tips (2026)

✔ Cheapest strategy:

1. Buy SIM (49 THB)
2. Use app (MyAIS / True iService / DTAC app)
3. Activate monthly unlimited plan

✔ Avoid:

• Airport tourist SIMs (2–3x price)

✔ Best overall cheap pick:
👉 DTAC 299 THB unlimited

✔ Best performance:
👉 TrueMove or AIS 10–15 Mbps plan

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🔥 Bottom Line

• Absolute cheapest unlimited plan:
  👉 ~299 THB/month (DTAC)
• Best overall value:
  👉 ~300–500 THB/month (TrueMove / AIS)
• True unlimited max speed:
  👉 ~900–1,300 THB/month