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Opensignal’s most awarded mobile network in Australia, May 2026 🏆

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Welcome

With no lock-in contract, our month to month SIM plans let you be you. Choose a plan to go with a new phone, or a phone you already have.

WhistleOut Australia helps over 11 million Aussies a year compare telecommunications products, like mobile phone and internet plans.

Welcome

With no lock-in contract, our month to month SIM plans let you be you. Choose a plan to go with a new phone, or a phone you already have.

WhistleOut Australia helps over 11 million Aussies a year compare telecommunications products, like mobile phone and internet plans.

View Plans

Welcome


With no lock-in contract, our month to month SIM plans let you be you. Choose a plan to go with a new phone, or a phone you already have.

WhistleOut Australia helps over 11 million Aussies a year compare telecommunications products, like mobile phone and internet plans.

Welcome

With no lock-in contract, our month to month SIM plans let you be you. Choose a plan to go with a new phone, or a phone you already have.

WhistleOut Australia helps over 11 million Aussies a year compare telecommunications products, like mobile phone and internet plans.

Welcome

With no lock-in contract, our month to month SIM plans let you be you. Choose a plan to go with a new phone, or a phone you already have.

WhistleOut Australia helps over 11 million Aussies a year compare telecommunications products, like mobile phone and internet plans.

View Plans

Welcome


With no lock-in contract, our month to month SIM plans let you be you. Choose a plan to go with a new phone, or a phone you already have.

WhistleOut Australia helps over 11 million Aussies a year compare telecommunications products, like mobile phone and internet plans.

SIM Only Mobile Plans

Online only deal.

60GB of data $40/month for a year.

Offer ends 6/9/26. New services and select plans. Terms

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3G services are no longer supported. Check if your device is compatible.

Budget PhonesSIM ONLY PLANSPHONES

SIM Only Mobile Plans

Get a new number or bring one over. Start a plan with the data and perks you need.

3G services are no longer supported. Check if your device is compatible.

Pick your perfect plan

This plan includes

Data Benefits
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Data Sharing

Share data with eligible plans on the same account.
 

dashboard icon

Endless Data with no excess data charges

With Endless Data don't pay excess data charges instead slow down your speed to a maximum of 1.5Mbps when you hit your limit.

Entertainment

SubHub

Manage eligible subscriptions in one place, with one easy payment.

Save up to 10% when you bundle 3 or more eligible subscriptions.

Setting up is easy, just go to SubHub and login with your Optus MyAccount and you're ready to start saving.

Available to account holders on eligible Optus accounts. 

T&Cs and eligibility criteria apply. Learn more
 

optus sport icon

Optus Sport

Optus Sport is available as an optional subscription to eligible account holders for $6.99/month when you activate through Optus SubHub.

Watch it live, or watch it later. Get every single match of the Premier League, LaLiga and more with full matches, mini-matches and highlights. Learn more

5G Network Access
5g icon

5G Network Access

Compatible device required. 5G rolling out in selected areas. Check coverage

Talk & Text
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Unlimited standard National Talk and Text

Standard Australian mobiles and landlines, 13/1300 numbers and voicemail. Standard national SMS and MMS.

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Unlimited standard Interational Talk and Text

Unlimited standard talk & text to 35 selected destinations.

Online only deal
60GB
$60/month

Small Choice Plus Plan

  • Pay $40/month for a year, then $60. New services only. Discount applied in cart. Ends 6/9. Terms

  • New services offer $40/month for 12 months, then $60/month
  • No lock-in contract

  • No excess data charges

  • $5 for 5GB daily roaming

  • Fast connection with eSIM

  • Save up to 10% on subscriptions every month through SubHub

  • Unlimited standard national talk & text

All for use within Australia

Critical Information Summary (PDF)
360GB
$69/month

for 12 months

Promo Plan

  • No lock-in contract

  • No excess data charges

  • $5 for 5GB daily roaming

  • Fast connection with eSIM

  • Save up to 10% on subscriptions every month through SubHub

  • Unlimited standard national talk & text

  • Unlimited standard international talk & text to 35 destinations 

  • $10/month credit to spend on subscriptions of your choice for 12 months

  • Netflix, Amazon Prime, Paramount+,BritBox, Microsoft,Youtube and more

Bonus value offers available until withdrawn. Plan is $69/month for 12 months, then $79/month or as notified. Terms

All for use within Australia

Critical Information Summary (PDF)
Online only deal
240GB
$70/month

Medium Choice Plus Plan

  • Pay $50/month for a year, then $70. New services only. Discount applied in cart. Ends 6/9. Terms

  • New services offer $50/month for 12 months, then $70/month
  • No lock-in contract

  • No excess data charges

  • $5 for 5GB daily roaming

  • Fast connection with eSIM

  • Save up to 10% on subscriptions every month through SubHub

  • Unlimited standard national talk & text

  • Unlimited standard international talk & text to 35 destinations 

All for use within Australia

Critical Information Summary (PDF)
Online only deal
480GB
$90/month

Large Choice Plus Plan

  • Pay $70/month for a year, then $90. New services only. Discount applied in cart. Ends 6/9. Terms

  • New services offer $70/month for 12 months, then $90/month
  • No lock-in contract

  • No excess data charges

  • $5 for 5GB daily roaming

  • Fast connection with eSIM

  • Save up to 10% on subscriptions every month through SubHub

  • Unlimited standard national talk & text

  • Unlimited standard international talk & text to 35 destinations 

  • $20/month credit to spend on subscriptions of your choice for as long as you remain on this plan

  • Netflix, Amazon Prime, Paramount+,BritBox, Microsoft,Youtube and more

All for use within Australia

Critical Information Summary (PDF)
Network Icon

Check out our Network Coverage available at your residential address and other critical locations before completing this order.

Students now get 200GB for $35/month for 12 months

when you sign up to a new mobile service. Plan fee increases from month 13. Eligible tertiary students only.​

Ends 6/9/26. Terms

Learn more

Questions about our SIM plans?
We're here to help 24/7

Chat with an expert

SIM Plans you will simply love

Keep your number
The option is yours. Simply keep your number when switching to Optus or choose to get a new one.
BYO phone
A SIM Only Plan is a great option when you already have a phone or want to buy one seperately.
No lock-in contract
Month to month plan with the option to cancel anytime.
Data Sharing
Share data across multiple devices instead of spending on individual services on the same account.
Daily roaming from just $5/day
Enjoy great roaming value in Zone 1 destinations with our $5 for 5GB per day roaming on our Optus Choice Plus plans. T&Cs apply.
National talk & text
Unlimited to standard Australian mobiles and landlines, 13/1300 numbers and voicemail. Unlimited standard national SMS and MMS. Fair Go Policy applies.
Keep your number

The option is yours. Simply keep your number when switching to Optus or choose to get a new one.

BYO phone

A SIM Only Plan is a great option when you already have a phone or want to buy one seperately.

No lock-in contract

Month to month plan with the option to cancel anytime.

Data sharing

Share data across multiple devices instead of spending on individual services on the same account.

 Daily roaming from just dollar 5/day

Enjoy great roaming value in Zone 1 destinations with our $5 for 5GB per day roaming on our Optus Choice Plus plans. T&Cs apply.

National talk & text

Unlimited to standard Australian mobiles and landlines, 13/1300 numbers and voicemail. Unlimited standard national SMS and MMS. Fair Go Policy applies.

Woman looking at mobile phone
Your e-SIM journey starts here
Connecting to Optus is easier with digital e-SIM technology
Learn more
Family
We've got plans for your family
Get 4 SIMs for $165/mth and share a whopping 320GB of monthly data with your family with the Optus Family Mobile Plan.
Learn more

Why choose Optus

Australia's Fastest 5G Mobile Network

 

For download speeds, as awarded by Opensignal 5G available in selected areas. Speeds may vary.
Explore 5G

Trade in your device and get a gift card.

Available on eligible devices in good working order. Terms

Learn about trade-in

Real support when you need it

24/7 human tech support online or self service through the My Optus app.
Contact us
TERMS AND CONDITIONS

FAIR GO POLICY APPLIES

Online only discount offer: Available to new and existing customers who sign up any eligible new mobile service which is the first mobile service on their account via Optus website online checkout or Optus webchat. The $20 discount for 12 months applies only to the standard monthly access fees on primary service and reverts to standard in-market price after 12 months. The discount does not apply to any add-ons or linked device payments and is forfeited if you cancel, recontract or change your service to an ineligible plan. Not stackable with other plan discount offers unless specified. Eligible plans for this offer: $60 Small Optus Choice Plus, $70 Medium Optus Choice Plus and $90 Large Optus Choice Plus. Offer ends 6/9/26.​
 

Bonus Upgrade & Protect on $79 Optus Plus Promo Plan: Available until withdrawn. Available to new and recontracting Consumer and Business customers signing up to a $79 Optus Plus Promo Plan/Business Choice Promo Plan and purchasing a device on a device payment plan (excludes outright device purchases). Customers will receive an Optus Upgrade and Protect subscription for $0/mth for the duration of their device payment plan, provided they remain on an eligible SIM plan. Standard redemption fees, credit checks and Optus Upgrade and Protect terms apply, see Optus Upgrade and Protect. Offer forfeited if you cancel, move to an ineligible plan, or recontract your plan (including by adding or removing a device payment plan) after the offer end date. Limit to 1 Upgrade and Protect subscription per device payment plan.

How we calculate total min. cost: Your min. cost is the minimum total amount you will be required to pay, when you sign up to a SIM plan or a SIM plan with a device payment plan.

  • When you sign up to a month to month SIM plan without a device payment plan, your min. cost is one month of your SIM plan fee.
  • When you sign up to a month to month SIM plan (which includes a plan fee discount) without a device payment plan, your min. cost is one month of your discounted SIM plan fee.
  • When you sign up to a month to month SIM plan with a device payment plan, your min. cost is the cost of your device in full plus one month of your SIM plan fee.
  • When you sign up to a month to month SIM plan (which includes a plan fee discount) with a device payment plan, your min. cost is the cost of your device in full plus one month of your discounted SIM plan fee.
  • When you sign up to a month to month SIM plan with a device payment plan (which includes a device discount), your min. cost is the cost of your device in full (less one month of your device credit amount) plus one month of your SIM plan fee.
  • When you sign up to a month to month SIM plan (which includes a plan fee discount) with a device payment plan (which includes a device discount), your min. cost is the cost of your device in full (less one month of your device credit amount) plus one month of your discounted SIM plan fee.
  • When you sign up to a month to month SIM plan with an outright purchase, your min cost is one month of your SIM plan fee.

$10 credit per month offer on $79 Optus Plus Promo Plan: Available until withdrawn. Available to new and existing Consumer and Business customers signing up to an $79 Optus Plus Promo Plan/$79 Business Promo Plan. Customer must have an active Sub Hub account with paid subscription costs greater than $0/mth to receive 12 month Sub Hub credit up to $10/mth maximum, depending on total of customers’ paid subscription costs (any difference between the total costs and $10 is forfeited). Credit will commence with first charge of paid subscription and continue for 12 consecutive billing periods. Credit forfeited if there are no SubHub paid subscriptions in a particular month during the period 12 months from commencement. Offers forfeited if you cancel, move to an ineligible plan, or recontract your plan (including by adding or removing a device payment plan) after the offer end date. Limited to 1 SubHub credit per account.

$79 Optus Plus Promo Plan: Offer available until withdrawn to new and existing Consumer and Business customers (excludes Optus Business Fund & Fleet) signing up to a $79 Optus Plus Promo Plan. Plan fee is $69/month for the first 12 months and then increases from month 13 to $79/mth or as otherwise notified by Optus. Offer forfeited if you cancel, move to an ineligible plan, or recontract your plan (including by adding or removing a device payment plan) after the offer end date. Limited to 6 services per account. Not available with other SIM plan offers, unless specified.

Changes to Plans (month to month): We may make changes to your month-to-month mobile plan, including to the price or inclusions. This could include moving you to a new plan, which may cost more. We’ll give at least 30 days’ notice of any increase to plan access fees, any data inclusion decreases or any plan moves. If you don’t like the change, you can choose a new plan (once per payment cycle) or cancel.

Optus Choice Plus/Promo Plus Plans (month-to-month): You can change to another eligible plan once per payment cycle or cancel at any time. If you change your plan, any related device payment plan will remain in place and the payments will remain the same. You may lose existing add-ons if you change to a plan that is not eligible for these and you will not receive a pro rata refund. If your plan is cancelled, there are no cancellation fees, but you will not receive a pro rata refund for the reminder of the payment cycle, unless otherwise provided in our standard agreement and subject to your consumer law rights. Any related device payment plan will be cancelled, and you’ll have to pay out any remaining payments owing as a one-off payment with any device credits or discounts forfeited. You are responsible for all charges incurred on your account by any linked Optus Kids Plans, including device charges. You will be automatically charged via card once per month for recurring charges and any add-ons. You must maintain your card payment details or your plan will be cancelled.

Device Payment Plans (OptusPay): You can buy an eligible device on a device payment plan and pay for it over a selected term by monthly instalments (also referred to as OptusPay). You will need to remain on an eligible Optus Plan for the term of your device payment plan. If you cancel your eligible plan or move to an ineligible plan, your related device payment plan will also be cancelled. If your device payment plan is cancelled, you’ll need to pay out any remaining device payments in full. Any applicable device credits or discounts will be forfeited. If you have a related Optus Kids Plan and the primary service is cancelled (by you or Optus) then all device payment plans related to the services will be cancelled and you will need to pay out the full remaining cost of all of the devices with any applicable device credits or discounts forfeited. This is subject to your consumer law rights. Limit of one device payment plan per eligible device and per Optus plan. You will be automatically charged via card once per month for device payments. You must maintain your card payment details or your device payment plan will be cancelled.

$20 SubHub credit on Large Optus Choice Plus plan: Available until withdrawn to new and existing Consumer and Business customers signing up to a Large Optus Choice Plus/Optus Choice/Business Choice/Business Choice Plus plan. Customer must have an active SubHub account with paid subscription costs greater than $0/mth to receive ongoing SubHub credit up to $20/mth maximum, depending on total of customers’ paid subscription costs (any difference between the total costs and $20 is forfeited). Credit will commence with first charge of paid subscription and continue each month. Credit forfeited if there are no paid subscriptions via SubHub in a particular month. Offer forfeited if you cancel, move to an ineligible plan, or recontract your plan (including by adding or removing a device payment plan). Limited to 1 SubHub credit per eligible plan

Standard International Calls and Text plan inclusion: Medium and Large Optus Choice Plus/Promo Plus plan inclusions for standard international calls and text can be used to the following selected destinations: Brazil, Brunei, Cambodia, Canada, Mainland China, Columbia, Denmark, France, Germany, Greece, Hong Kong, Hungary, India, Indonesia, Ireland, Israel, Italy, Japan, Laos, Lebanon, Malaysia, Malta, Mexico, New Zealand, Norway, Poland, Romania, Singapore, South Korea, Sweden, Taiwan, Thailand, United Kingdom, USA and Vietnam. Destinations are subject to change. Calls and texts to other destinations are not included.

International Talk and Text add-ons: Available on selected mobile plans to select destinations. You may automatically be charged via card on activation of the add-on, if no payment is made you will still have access to the add-on and the amount will be added to your next monthly invoice. Usage alerts are sent at 50%/85%/100% of your talk and text inclusions. Add-on expires once inclusions are used or at end of payment cycle (whichever is first). Add-on can only be used in Australia.

Optus Daily Roaming: Optus Daily Roaming add-on is automatically activated and is available on Choice Plus/Promo Plus mobile plans in select Zone 1 destinations. You will be automatically charged via card upon first usage in an eligible destination. If your payment fails you will need to check your payment details are correct, and all roaming usage will be restricted. Usage alerts are sent at 50%/85%/100% of your data inclusions. Add-on includes unlimited standard national talk and text in a Zone 1 destination or to Australia (standard national talk is not available with MBB plans) and 5GB data.  Add-on expires once inclusions are used or once the add-on 24 hour duration has ended (whichever is first). If you continue to roam in eligible destinations, we’ll automatically add a further add-on to your service, and you will be charged for the further add-on. Unused data expires. Eligible destinations are subject to change, see current list at Optus International Roaming.  Fair Go Policy applies.

No Excess Data Charges: If shared data allowance is exceeded, all shared data services on your account will be slowed to a maximum speed of 1.5Mbps (suitable for general internet browsing and music streaming, however some activities such as video streaming may see increased buffering and loading times). Usage while slowed is unmetered. Applies to data usage in Australia only.

Data Add-ons: Available on selected mobile plans. Each add-on can be added once per 24 hrs, per service. You may automatically be charged via card on activation of the add-on, if no payment is made you will still have access to the add-on and the amount will be added to your next monthly invoice. The inclusion of your Data Add-on is added to your shared data allowance on your account. Data is counted in KB increments and includes uploads and downloads. Usage alerts are sent at 50%/85%/100% of your shared data. Add-on expires if data used or at end of payment cycle (whichever is first). Data can only be used in Australia.

Usage alerts: Usage alerts are typically real-time but delays of up to 48 hours may be experienced. You will receive alerts in Australia and while roaming overseas via SMS. However, you can change your preferred method of receiving usage alerts and service notifications anytime by visiting My Account. To learn more about usage alerts, click here.

Coverage: Coverage availability will vary depending on your device and location. Check coverage at optus.com.au/coverage.

Frequently asked questions

What is a month-to-month SIM only plan?

A SIM only plan is a type of postpaid phone plan that offers features such as talk and text and data benefits but does not include a phone. SIM only plans are also referred to as a BYO (bring your own) phone plan, which do not have a lock in contract, meaning you can cancel anytime. With a SIM only plan, you receive either a SIM card or eSIM.

Can I use a SIM plan on any mobile device?

3G services are no longer available. You can only use your SIM on devices that are compatible with our 4G/5G network.

Optus (and other Australian telecommunication providers) is legally required to block access to devices that are not able to make emergency calls to Triple Zero (000) using VoLTE. Check if your phone is compatible using our Device Checker tool, by entering the first 8 digits of your device’s IMEI (International Mobile Equipment Identity) number. Find your device’s IMEI number by dialling *#06#.

If your device is not compatible, you will need a new compatible device to stay connected. You can find more information here.

Why should I choose Optus for my SIM Only phone plan?

• 5G Network Access at no extra cost: If your device is 5G compatible and 5G is available in your area.

• No excess data charges: Once you’ve reached your limit, you still get endless data without paying any excess data charges but we will slow down your speed to maximum of 1.5Mbps. 

• Unlimited Data Day: Eligible customers can get 24 hours of unlimited data for $5 via My Optus App. Now stream, watch and play for an entire day.

• Get unlimited Standard National Talk and Text on standard Australian mobiles and landlines, 13/1300 numbers and voicemail.

• Get unlimited standard International Talk and Text to 35 selected destinations on select plans.

• Stay connected overseas with a $5/5GB per day international roaming add-on.

How do I cancel my SIM only plan?

You can manage the services under your account by logging into your My Account (https://www.optus.com.au/my-account-login) and navigating to the services section.

Can I keep my mobile number with a SIM only plan?

Yes! You can keep your number regardless of which provider you’re coming from. All you need to do is select ‘keep my number’ and the carrier you’re coming from in the checkout and we’ll do the rest.

What happens if you take out your SIM card and put it in another phone?

As long as the phone is not locked to another service provider, and the SIM card fits, there is unlikely to be any issues with your service coming through to the new device.

What happens when a month to month SIM only contract ends?

At Optus, with month-to-month contracts, you can adjust your services, if you so desire, monthly. If you have an older plan, or a 12 or 24 month SIM contract through our partners that do offer SIM contracts, please review your critical information summary for details of fees and ability to change for your particular plan, and then contact the team or visit us in-store.

How do I keep track of my usage?

We'll send you usage alerts once you've reached approximately 50%, 85% and 100% of your shared included domestic data (in Australia only).

You can update your preferred method of receiving usage alerts and service notifications any time by visiting My Account.

And, you can check usage by:

  • Visiting My Account
  • Downloading the My Optus App

To learn more about usage alerts and how to control your spend, click here.

What is Data Sharing?

Data sharing allows you to share your plans' monthly data across multiple services.

Data sharing for individuals: If you're an individual with multiple services, Data Sharing gives you the convenience of one account and all the data inclusions of your connected services in one big pool to share. You can connect any combination of eligible mobile SIM and mobile broadband plans.

Data Sharing is perfect for families and for individuals with multiple mobile and mobile broadband services who want to share their data to get the most out of their data inclusions. Learn more.  

Optus Choice Plus, Optus Choice Plus Data, ,Optus Plus Family and Optus Plus Kids plans do not data share with other plans. Check your CIS document or My Optus app to check your plan.

Data sharing for families: When Data Sharing, you have the convenience of using all your data inclusions across eligible plans under the one account. You can connect any combination of eligible mobile and mobile broadband plans.

Can I access 5G network on an Optus Choice mobile SIM plan?

On eligible plans, you can access Optus 5G network at no additional cost, but a compatible device is required. The Optus 5G mobile network is currently rolling out in selected areas of Australia. When not in 5G coverage area, the device will switch to Optus 4G network where it is available. Check out the Optus 5G mobile coverage map for the latest updates on our 5G network rollout.

While we are rolling out 5G, our 4G Plus network now reaches 98.5% of the Australian population, making 4G available in all capital cities and hundreds of regional and holiday towns. Learn more.

What happens if I go over my shared data?

Great news - with our Endless Data feature, once you reach your shared data allowance, all services on your account will continue to use data at a maximum speed of up to 1.5Mbps. A speed of 1.5Mbps is suitable for general internet browsing and music streaming, however some activities such as video streaming may see increased buffering and loading times.

Am I able to change my delivery address after I've made an order?

Once your order has been processed you won't be able to change your delivery address, so make sure to put in the correct address when placing your order.

What identification details do I need when buying a SIM?

Whether you're ordering online, on the phone or in store, you’ll need your ID, credit card and employment details to successfully pass the credit check and process your order.

Still have questions?

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