There are two mobile operators in Qatar:

Vodafone

Vodafone is number 2 in Qatar, but if you’re mainly in the centers it’s a slightly cheaper alternative. 4G/LTE is available in Doha, Pearl and West Bay

English website:  http://www.vodafone.qa/en

Ooredoo

Ooredoo (formerly Qtel) is the market leader in Qatar with more than 2/3 of all customers in the country. It has the best coverage and speed in the country

English website:  https://www.ooredoo.qa/

Censorship in Qatar

Qatar also “filters” online censorship of pornography, political criticism of the Gulf states, gay and lesbian content, sexual health resources, dating and escort services, and privacy and bypass tools. Users complain that obscene or offensive sites are also blocked. That way you can install a proxy or VPN before bypassing. Filtering in Qatar is relatively transparent as it shows the blocked site instead. Internet is uncensored at least in some international hotels.

Internet and mobile communications in Qatar. How much does a SIM card with Internet cost in Qatar? What is the best mobile internet in Qatar? Is the internet good in Qatar? What is the internet speed in Qatar? Is there a 5G network in Qatar?