1 year unlimited data SIM cards in Thailand

Long term Net SIM cards in Thailand

Mobile operators have long time offered 7-30 day pre-paid SIM cards for tourists and local residents. This year the operators have started to offer also a longer term, up to 1 year, SIM cards for data usage.

This is great news for local residents and expats in Thailand. The prices of these SIM cards are often half when buying a 6 month or 1 year pre-paid contract.

Furthermore these Net SIM's offer real unlimited data with constant speed. Unlike the most 1 month subscriptions, which offer for example 3 GB of high speed internet, which then is slowed down to 128-384 Kbps speeds, these new SIM's offer 1-4 Mbps speeds, even if you usage is 100-200 GB/month. 

 

DTAC - Golden Dog

DTAC's Golden Dog 1 year SIM cards are only available at larger DTAC stores. Have your passport with you, when buying the SIM. 

I have had this package as my home internet connection for a month now. The speed has been pretty constant, except occasional heavy thunderstorms, when the speed drops slightly. I placed the SIM to a 3G USB modem and plugged it into my home router. It works perfectly.

https://www.dtac.co.th/en/prepaid/products/golden-dog-sim.html

There is also DTAC Plearn SIM card, which costs mere 30-50 baht per year. This SIM's provides only 64 Kbps speed. https://oilinki.com/blog/worlds-cheapest-mobile-connection-go-plearn

 

AIS - Net Marathon

AIS offers 6 month and 1 year Unlimited Net SIM Packages with speed of 1 to 4 Mbps. These packages are available at AIS stores nationwide. 

https://store.ais.co.th/en/sim-card/sim-net-marathon.html

 

 

 

CAT Telecom - MyNet

CAT is not widely known as mobile operator. Howevere they have a long history providing constant speed Internet access with their already closed CDMA network. 

CAT MyNet packages are available at CAT stores. In Phuket, one is located at Central Festival shopping centre.

http://www.mybycat.com/th/PrePay.php?package=79_my-%E0%B9%80%E0%B8%99%E0...

 

 

True - Nothing currently available

True doesn't seem to have any long term, constant speed mobile internet packages available at the moment (January 2018).

1 year constant speed unlimited data SIM cards in Thailand
  SPEED LENGTH PRICE (฿) / month

/ (€ / month)
NOTES
DTAC 2 Mbps 1 year 1899 / 158 / (€4.1) VAT incuded
  4 Mbps 1 year 2999 / 250 / (€6.4) VAT included
  64 Kbps 1 year 50 / 4 / (€0.1)  
AIS 1 Mbps 6 months 600 / 100 / (€2.5)  
  1 Mbps 1 year 1200 / 100 / (€2.5)  
  4 Mbps 6 months 1400 / 233 / (€6.0)  
  4 Mbps 1 year 2500 / 416 / (€5.3)  
True N/A      
CAT 1Mbps 1 month 100 / 100 / (€2.5)  
  1 Mbps 6 months 600 / 100 / (€2.5)  
  1 Mbps 1 year 1200 / 100 / €2.5)  

All prices are in Thai baht. January 2018 exchange rates: 1 Eur = 39 baht and 1 USD = 31 baht.