Good deal: Double data on a select Telstra SIM-only plans

Telstra promos aren't exactly a regular occurrence, but Big T currently has some great SIM-only plans with double data running right now.

$49 per month gets you 30GB of data on a 12-month contract, while $59 gets you a massive 60GB. The 60GB plan also includes unlimited talk and text to 15 countries. And if that still isn't enough, Telstra's $89 plan gets a bonus 30GB, taking it to 90GB per month. 

While the $89 plan is the priciest out of the bunch, it also includes a 12-month Foxtel Now subscription valued at $25 per month, and includes free international roaming with a monthly 2GB roaming data allowance.

Here's the full details:

Mobile Phone Plans

Telstra

Telstra $74 Basic Upfront SIM Plan 50GB data Telstra 5G Network in selected areas with 5G devices Deal: Get $37/mth off your first 4 months on a new Upfront Mobile Plan. New services only. Ends 30.11.26. T&Cs apply $74.00/mth Min. cost $24 Link not supplied

$74.00/mth Min. cost $24

Link not supplied

Sorted by price

See More Plans ~ Last Updated 6/11/2026

Powered By

How WhistleOut Works

This offer is available for both new and existing customers.

For Telstra, these plans are about as good at it gets, but how do they compare to the rest of the market? When it comes to the 30GB plan, there's definitely cheaper ways to get that much data: Optus and Vodafone will both do the same allowance for $35 per month.

Mobile Phone Plans

#1	Dodo Editor's Pick	Dodo Editor's Pick Medium Mobile Plan 40GB data at download speeds up to 150Mbps Optus 5G in selected areas (exc NT) with a 5G device Deal: 50% off! Get the Medium Mobile Plan for $15/mth for first 6 mths, then $30/mth. New and returning mobile customers only. Ends 08.12 $15.00/mth Min. cost $15 Go to Site	$15.00/mth Min. cost $15	Go to Site
#2	Belong	Belong 25GB Mobile Plan 50GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Includes 25GB monthly bonus data for first 12 months when you activate your new service by 30.11.26. T&Cs apply. $34.00/mth Min. cost $34 Link not supplied	$34.00/mth Min. cost $34	Link not supplied
#3	Tangerine Telecom	Tangerine Telecom 50GB 5G Mobile SIM 50GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Bundle your mobile and nbn plans on the same account to get 10% off your mobile SIM-only plan fees. T&Cs apply. $36.00/mth Min. cost $36 Go to Site	$36.00/mth Min. cost $36	Go to Site
#4	Optus	Optus $60 Optus Choice Plus Plan 100GB data Optus 5G in selected areas (exc NT) with a 5G device Deal: $39/mth and 100GB/mth for first 12 months, then 60GB/mth and $60/mth or as notified. New services. Ends 12.11.26. Terms apply. $39.00/mth Min. cost $39 Go to Site	$39.00/mth Min. cost $39	Go to Site
#5	Everyday Mobile	Everyday Mobile $40 SIM Only 70GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Get 10% off an eligible Woolworths shop in store every month when you link your Everyday Rewards card. T&Cs apply $40.00/mth Min. cost $40 Link not supplied	$40.00/mth Min. cost $40	Link not supplied
#6	Vodafone	Vodafone $58 Small SIM Only Plan 65GB data Vodafone 5G Network in selected areas with 5G devices Deal: Includes $13/mth off plan fees for first 12 months when you stay connected to this plan. Ends 16.11.26. T&Cs apply. $45.00/mth Min. cost $45 Link not supplied	$45.00/mth Min. cost $45	Link not supplied
#7	Telstra	Telstra $74 Basic Upfront SIM Plan 50GB data Telstra 5G Network in selected areas with 5G devices Deal: Get $37/mth off your first 4 months on a new Upfront Mobile Plan. New services only. Ends 30.11.26. T&Cs apply $74.00/mth Min. cost $24 Link not supplied	$74.00/mth Min. cost $24	Link not supplied

Sorted by price

See More Plans ~ Last Updated 6/11/2026

Powered By

How WhistleOut Works

Similar is true when it comes to Telstra's 60GB offer. Optus will do 50GB for $45 per month, Vodafone has 80GB for $60 per month, and Think Mobile is the clear winner in terms of value, with a 80GB $48 per month plan. The Telstra 60GB plan is however one of the best Telstra network deals we've seen to date, at least, for those who need a lot of data.

Mobile Phone Plans

#1	Dodo	Dodo Large Mobile Plan 80GB data at download speeds up to 150Mbps Optus 5G in selected areas (exc NT) with a 5G device Deal: 50% off! Get the Large Mobile Plan for $20/mth for first 6 mths, then $40/mth. New and returning mobile customers only. Ends 08.12 $20.00/mth Min. cost $20 Go to Site	$20.00/mth Min. cost $20	Go to Site
#2	Belong	Belong 25GB Mobile Plan 50GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Includes 25GB monthly bonus data for first 12 months when you activate your new service by 30.11.26. T&Cs apply. $34.00/mth Min. cost $34 Link not supplied	$34.00/mth Min. cost $34	Link not supplied
#3	Tangerine Telecom	Tangerine Telecom 50GB 5G Mobile SIM 50GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Bundle your mobile and nbn plans on the same account to get 10% off your mobile SIM-only plan fees. T&Cs apply. $36.00/mth Min. cost $36 Go to Site	$36.00/mth Min. cost $36	Go to Site
#4	Optus	Optus $60 Optus Choice Plus Plan 100GB data Optus 5G in selected areas (exc NT) with a 5G device Deal: $39/mth and 100GB/mth for first 12 months, then 60GB/mth and $60/mth or as notified. New services. Ends 12.11.26. Terms apply. $39.00/mth Min. cost $39 Go to Site	$39.00/mth Min. cost $39	Go to Site
#5	Everyday Mobile	Everyday Mobile $40 SIM Only 70GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Get 10% off an eligible Woolworths shop in store every month when you link your Everyday Rewards card. T&Cs apply $40.00/mth Min. cost $40 Link not supplied	$40.00/mth Min. cost $40	Link not supplied
#6	Vodafone	Vodafone $58 Small SIM Only Plan 65GB data Vodafone 5G Network in selected areas with 5G devices Deal: Includes $13/mth off plan fees for first 12 months when you stay connected to this plan. Ends 16.11.26. T&Cs apply. $45.00/mth Min. cost $45 Link not supplied	$45.00/mth Min. cost $45	Link not supplied
#7	Telstra	Telstra $74 Basic Upfront SIM Plan 50GB data Telstra 5G Network in selected areas with 5G devices Deal: Get $37/mth off your first 4 months on a new Upfront Mobile Plan. New services only. Ends 30.11.26. T&Cs apply $74.00/mth Min. cost $24 Link not supplied	$74.00/mth Min. cost $24	Link not supplied

Sorted by price

See More Plans ~ Last Updated 6/11/2026

Powered By

How WhistleOut Works

Alex Choros

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

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