By
Alex Choros - Managing Editor + Group Telco Editor
Last updated

The price of data keeps dropping, which has led to some incredible deals on data-only SIMS. Data-only SIMs are traditionally used in portable hotspots for mobile broadband or to get a SIM-enabled tablet online. However, you may have found yourself wondering if you can also use these SIMs in a smartphone?

The short answer is yes. And there are two main reasons why using a data-only SIM in your phone might work for you:

  • You want to turn a spare phone into a portable Wi-Fi hotspot
  • You've moved away from traditional talk and text to over-the-top services like iMessage, Facebook Messenger and WhatsApp

The exception is where your telco explicitly says its data-only SIMS are for use in a tablet or portable modem only. Telstra and Vodafone are two examples of telcos that specify this. 

Use a data-only SIM to create a portable Wi-Fi hotspot


A portable Wi-Fi hotspot is a device that acts as a modem to bring other devices, such as laptops, tablets, or game consoles, onto the internet. Because portable hotspots use the mobile network to connect to the internet, you can use them anywhere you get 4G or 5G coverage – in a cafe, in the park, in your new house that doesn't have the internet set up yet. That's the power of mobile broadband. 

While many telcos now have data-only SIM offerings, only a few sell internet dongles and pocket WiFi hotspots that will work with them. In some cases, these are network-locked, in others, you'll need drop a bunch of cash upfront. Because of this, we often get asked if you can use a data-only SIM in a spare smartphone, and then use that smartphone as a portable hotspot. In the vast majority of cases, the answer should be yes. As aforementioned, there are exceptions.

What is the difference between a data-only SIM and a regular phone SIM?

Data-only SIMs and regular phone SIMs both look the same. The key difference is that a data-only SIM only comes with a data allowance; it doesn't come with any talk or text inclusions. Some data-only SIMs may let you make or receive phone calls, but you're likely to be billed extra if you do. 

Using a data-only SIM for your mobile plan


These days, you could comfortably get away with using a data-only SIM as your mobile plan thanks to the availability of apps like Telegram, Skype, Viber, WhatsApp, FaceTime, Facebook Messenger and other talk and text services that use the internet to connect. If you're happy using these apps for your texting and don't make a lot of calls, you could save some money by choosing a data-only SIM for your phone.

However, whether or not you will save any money depends a lot on how much data you need. Use our mobile phone plans comparison tool to take a look at what's out there before you make a decision.

Some data-only SIMs may still let you receive calls and messages, and some will let you make them too (but you'll need to pay extra, and typically, per call or per message). This varies from provider to provider, so be sure to check with the telco if this functionality is important to you. 

Keep in mind that you may need an active phone number for a range of products and services including verification via SMS and call or even to receive recovery codes if you get locked out. 

Data-only SIM plans in Australia
Young Asian man in a business suit using a tabletYoung Asian man in a business suit using a tablet

How to use your phone as a portable Wi-Fi hotspot


Using your smartphone as a portable Wi-Fi hotspot is easy, but the steps will vary depending on if you've got an iPhone or an Android device.

On an iPhone, you'll want to follow these steps: 

  1. Open the Settings app
  2. Tap Personal Hotspot
  3. Toggle Allow Others to Join to On

You can now connect to a Wi-Fi network created by your iPhone. It will have the same name as your iPhone, and the Wi-Fi password will be listed under the Personal Hotspot settings menu. You can change both of these.

On Android devices such as Samsung or Google, this process can vary slightly depending on which manufacturer built your phone and which version of the operating system you're running. The following steps should be similar on most devices:

  1. Open the Settings app
  2. Tap Connections and then Hotspot & Tethering
  3. Tap on Mobile Hotspot.This page lets you turn on your hotspot, and configure settings if you need to change them

If you can't find these options, use the search pane at the top of your settings app and type in "hotspot".

If you're using an old phone, you may even consider keeping it plugged in. Using your phone as a hotspot is a battery-intensive task and the older your phone, the weaker the battery will be.

Compare data-only SIM plans


You can use our search engine to compare options for data-only SIM plans. But if you're looking for a quick pick, here are some of the most popular options from our database: 

#1
ALDI mobile
ALDI mobile

$95 Data Plan

  • Mobile Broadband
  • 30GB Data
  • Prepaid (365 Days)
$95
Link not supplied
#2
Telstra
Telstra

Upfront Data Plan Small

  • Mobile Broadband
  • 30GB Data
$33/mth
Min. cost $33
Link not supplied
#3
SpinTel
SpinTel

Mobile Broadband Unlimited

  • Mobile Broadband
  • Unlimited Data
$49.95/mth
+ $20 Upfront
Min. cost $69.95
Link not supplied
#4
amaysim
amaysim

30GB Data Plan

  • Mobile Broadband
  • 30GB Data
  • Prepaid (28 Days)
  • Deal: Get 30GB for $10 on your first renewal (save $15) when you sign up by 25.11.26
$25
Link not supplied
#5
Belong
Belong

20GB Data SIM Only

  • Mobile Broadband
  • 20GB Data
$20/mth
Min. cost $20
Link not supplied
#6
Tangerine Telecom
Tangerine Telecom
Editor's Pick

100GB Mobile Broadband Data Plan

  • Mobile Broadband
  • 100GB Data
$34.90/mth
Min. cost $34.90
Link not supplied
#7
Vodafone
Vodafone

Large Data SIM Only Plan

  • Mobile Broadband
  • 140GB Data
  • Deal: Get 140GB of data for 12 months (incl. 70GB bonus data) on the Large Data SIM Only plan. Ends 21.10.26. T&Cs apply.
$40/mth
Min. cost $40
Link not supplied
#8
Lebara Mobile
Lebara Mobile

Data Plan Medium

  • Mobile Broadband
  • 80GB Data
  • Prepaid (60 Days)
  • Deal: Includes 20GB bonus data for first 3 recharges on Medium Data Plan until 03.11.26
$37
Link not supplied
#9
Aussie Broadband
Aussie Broadband

X-Large Data Only 5G SIM

  • Mobile Broadband
  • 180GB Data
$60/mth
Min. cost $60
Link not supplied
#10
Yomojo
Yomojo

7GB Data Only

  • Mobile Broadband
  • 7GB Data
$19.90/mth
Min. cost $19.90
Link not supplied

Alex Choros

Managing Editor + Group Telco Editor | X | Instagram | Threads | LinkedIn

Alex Choros
Alex Choros is the Managing Editor of WhistleOut Australia and an award-winning journalist. He's been writing about consumer technology for over a decade and is an expert on the Australian telco sector, to the point where he knows far too many phone and internet plans by heart. In addition to leading the WhistleOut editorial team, Alex is responsible for ruining the office Sonos with his troubled taste in music.

Read full bio

Save on your phone plan

On average, WhistleOut visitors save over $160 a year when they switch telco services. Start saving now.

Compare phones and plans from the following carriers...

Latest Mobile Phone Deals

Pay just $14/mth for the first 6mths for the Swoop 30GB 5G SIM.

40GB for $15/mth for first 4mths! Ultd data banking, $200 international calls & no excess data charges!

iPhone 18 Pro 256GB, 220GB data, $108.30/mth + $200 Bonus Trade In Credit!

50% off plan fees for 4mths. $15 for 30GB with international call inclusions!

50% off first 3mths when you switch to Felix, $17.50 for 50GB for 3mths!

See our Editor's Pick choices for the Best Mobile plans this month