Mobile data for every other device in your life.
A data only SIM keeps your tablet, hotspot or second device online wherever you go. Here is how data only SIMs work in Australia, what to look for, and the best plans for tablets, mobile broadband and BYO devices.
A data only SIM is a mobile plan used purely for internet, no calls, no texts. You drop it into any device with a SIM slot (tablets, hotspots, laptops with cellular, even smartwatches) and it gives you mobile data on a network. Tip: in Australia, any standard SIM only plan can be used data only on a BYO device, you do not always need a dedicated "data only" plan to get the result.
What is a data only SIM, and how does it differ?
A data only SIM gives you mobile data with no phone number for calls or texts. The SIM connects to a mobile network the same way as a phone SIM, but the plan is structured around data inclusions only. Some data only SIMs do still get a phone number for technical reasons, but you would not use it for calls.
You drop a data only SIM into any device with a SIM slot: a cellular tablet, a portable hotspot or pocket Wi-Fi modem, a laptop with built-in cellular, an in-car infotainment system, a connected security camera, or a smartwatch with cellular. The SIM gives the device its own independent internet connection without relying on your home Wi-Fi or your phone's hotspot.
Here is a key point that catches a lot of people out: in Australia, you do not always need a SIM marketed as "data only" to get data only service. Any normal SIM only plan can be used data only. Pop a Lyca, Superloop or Tangerine SIM into your iPad or hotspot and the data works just like it would on a phone. You just do not use the included call and text allowance, the data is what matters for the device.
What you might put a data only SIM into
The right device decides the right plan. Lightweight devices need only a little data and benefit from long-expiry plans. Hotspots and laptops on the road want bigger allowances. Here are the common cases.
Cellular tablet
5-15 GB / moInternet on your iPad or Android tablet anywhere there is mobile signal. Mostly used on Wi-Fi at home, cellular when out.
Mobile hotspot
30-100 GB / moA pocket Wi-Fi modem you share between phone, laptop and any visiting devices. The Swiss-army-knife of travel and work-from-anywhere.
Cellular laptop
30-50 GB / moA laptop with built-in 4G/5G connects without relying on tethering, useful for client visits and travel days.
Other connected devices
1-5 GB / moSecurity cameras, in-car systems, IoT trackers, smartwatches with cellular, dashcams. Small data needs, long expiry plans usually win.
How much data do you actually need?
Plans range from a few gigabytes for $15 a month to unlimited for $80 plus. Picking the right size matters because over-buying is the single most expensive mistake on data only SIMs. Here is the realistic guide.
"Data only SIM" and "SIM only plan" are not the same thing.
SIM only plans usually include calls and texts as well as data. Data only SIMs are sold as data products with no voice line. But in practice, you can use any SIM only plan as data only on a BYO device. The plan does not change, you just do not use the call and text inclusions on a tablet or hotspot. The thing that matters is the data allowance, not the plan's label.
Plans worth knowing about
These options cover the most common data only situations. Prices verified May 2026. Intro promos often run lower than the ongoing rate shown.
Tablet, smartwatch or IoT device
For a tablet mostly on Wi-Fi, a kid's device, or a connected gadget that uses a couple of gigabytes a month. A long-expiry plan removes the monthly recharge step and works out cheaper per month.
Lyca Medium 365 Day
Vodafone networkSplit into 30-day blocks of around 17GB. Works out to roughly $18 a month for a year of service. Intro discounts often available for new customers.
Tablet, laptop or moderate hotspot use
For a tablet you actually take out and use on cellular regularly, or a laptop with built-in 4G/5G. A 30-day plan with 30-50GB and 5G access is the right balance.
Tangerine 5G plans
Telstra network5G included, no lock-in, with intro discounts available. Tangerine runs on the Telstra network so coverage matches what you would get going direct.
Hotspot, work-from-anywhere or video
For a pocket Wi-Fi modem you share between devices, or a laptop you tether all day for work. Big data plans with rollover banking soak up unused months.
Superloop Plus 5G 130GB
Telstra networkUp to 1000GB data bank for unused data rollover. Strong choice for variable-use months when you need headroom on heavy weeks.
Compare every plan side by side
If you want to see every current Australian SIM only plan compared in one place, with data, price and host network shown together, that is what the comparison page is for. Sort by data allowance to find the right plan for your device.
All current SIM only plans
Lyca, Superloop, TangerineEight plus plans across the three featured AU providers, comparable side by side. Includes prepaid, postpaid, long-expiry and high-data options, all of which work fine for data only use.
Prices verified May 2026 from each provider's site. Plans and intro promos change regularly. The plans above include voice and SMS inclusions on the same SIM, you simply do not use them on a tablet or hotspot.
Common questions on data only SIMs
What is a data only SIM?
Is a data only SIM the same as a SIM only plan?
Can I use any SIM in a tablet or hotspot?
How much data does a tablet or hotspot actually use?
Are long-expiry data SIMs worth it?
Do data only SIMs work on 5G?
Can I use a data only SIM in an iPad?
Do data only SIMs include hotspot tethering?
Ready to get a device online?
Compare every current SIM only plan side by side, sort by data allowance, and pick the right plan for your tablet, hotspot or BYO device.
Compare SIM plans