Before you start

Photo ID for registration — passport for visitors, QID for residents (registration is mandatory by law)
An unlocked phone (or an eSIM-capable phone if going eSIM)
For postpaid: a valid QID — postpaid contracts are not sold on a passport alone

Step-by-step

1
Pick a carrier
Qatar has two networks: Ooredoo (prepaid line branded Hala) and Vodafone Qatar. Both have strong nationwide 4G/5G; coverage is comparable, so choose on plan price or whichever your employer/peers use.
In personWho: You——
2
Buy a prepaid SIM on arrival
Both carriers have staffed booths in the Hamad International Airport arrivals hall (Ooredoo on the right, Vodafone on the left). Show your passport and they register and activate the SIM on the spot — no QID needed for prepaid.
In personWho: You~10 minutesStarter SIM ~QR 35; tourist data packs ~QR 75–150
3
Or activate an eSIM
Both carriers sell eSIMs you can buy and activate online before or after you land. Note Ooredoo's airport booth generally cannot issue an eSIM on the spot — buy it online or at a full Ooredoo store. Travel eSIMs (e.g. Airalo) are a data-only fallback.
OnlineWho: YouMinutes once QR-code scannedVaries by data bundle
4
Switch to postpaid once you have your QID
Postpaid plans (Ooredoo Shahry, Vodafone Red, etc.) require a QID and are best for residents — better rates, billing, and a number you keep. Apply in-app, online, or at a store; you can usually port your prepaid number.
In personWho: You (resident)Same day with QIDPlans from ~QR 100–125/mo

Documents you’ll need

Passport (visitors / prepaid)
QID (residents / any postpaid plan)
Unlocked or eSIM-capable phone
Payment card or cash for the SIM/recharge

Things most newcomers don’t know

Every SIM is registered to an ID — there is no anonymous SIM.

Qatari law requires each SIM to be registered to a passport (visitors) or QID (residents). Buy from an official carrier booth/store so it's registered correctly; an unregistered SIM can be cut off.

Source: official + provider consensus

Prepaid runs on your passport — postpaid needs the QID.

You can be connected within the hour on a prepaid SIM, but carriers won't sell a postpaid contract until you have a QID. Plan on prepaid for your first few weeks, then convert.

Source: provider consensus

Don't count on grabbing an eSIM at the airport booth.

Ooredoo's airport counter typically can't provision an eSIM there — if you want an eSIM, set it up online beforehand or visit a full store, otherwise take a physical SIM at the booth.

Source: provider guides

Coverage is a non-issue; choose on price and perks.

Both Ooredoo and Vodafone Qatar blanket the populated areas with 4G/5G, so the practical decision is bundle price, data allowance, and which network your employer or friends already use.

Source: provider consensus