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

Everyone with a Telstra or Boost Mobile prepaid plan will soon get a free trial of 5G, with the providers rolling out the offer over the coming weeks.

If you're a customer with either telco, you should soon get a text message saying you've received the upgrade, provided you have an active recharge - if you haven't already. It may still take a further 24 hours before you can get 5G connectivity, however. And of course, you'll need to have both a 5G phone and be in a 5G coverage area to actually use the next-generation network.

As part of the trial, prepaid customers will be able to use the Telstra 5G network with uncapped speeds. This is notable, as Telstra will soon be imposing a speed cap of 250Mbps on its cheapest 5G plan and on 5G plans sold by its MVNO partners.

This free trial will run until September 26, after which plans will go back to good old fashioned 4G connectivity.

Excluding the free trial, there's just a single Telstra prepaid plan and a single Boost Mobile plan that have 5G connectivity, and both are pretty pricey. On Telstra, you need to pay $60 for a 28-day recharge to get 5G. On Boost, you're looking at $70 for a prepaid recharge.

As such, this potentially opens 5G on prepaid to a whole lot more customers - assuming they have a compatible device. Given the trial lasts almost four months, Telstra is seemingly hoping that it will at least convince some that 5G is useful enough to upgrade to a more expensive plan by the time it ends.

Here is Telstra's current range of prepaid plans:

Mobile Phone Plans

Telstra
Telstra

$44 Pre-Paid Mobile

  • 50GB data at download speeds up to 150Mbps
  • Deal: Includes 30GB activation bonus for first 3 recharges, 20GB from your fourth. Ends 01.01.2027
$44.00
Per 28 Day Renewal
Link not supplied

And here is Boost's current range of prepaid plans:

Mobile Phone Plans

#1
Boost Mobile
Boost Mobile

$14 Prepaid

  • 6GB data at download speeds up to 150Mbps
$14.00
Per 7 Day Renewal
#2
Boost Mobile
Boost Mobile

$28 Prepaid

  • 8GB data at download speeds up to 150Mbps
$28.00
Per 28 Day Renewal
#3
Boost Mobile
Boost Mobile

$39 Prepaid

  • 60GB data at download speeds up to 150Mbps
  • Deal: Get 60GB data on first 6 recharges, then 30GB from 7th recharge. New customers only. Activate by 02.11.26
$39.00
Per 28 Day Renewal
#4
Boost Mobile
Boost Mobile

$49 Prepaid

  • 75GB data at download speeds up to 150Mbps
  • Deal: Online only. Grab a $49 SIM for $17 – save $32. Hurry! Offer ends 19.10.26. Terms Apply
$49.00
Per 28 Day Renewal
#5
Boost Mobile
Boost Mobile

$59 Prepaid

  • 105GB data at download speeds up to 250Mbps
  • Deal: Get 105GB data on first 6 recharges, then 55GB from 7th recharge. New customers only. Activate by 02.11.26
$59.00
Per 28 Day Renewal
#6
Boost Mobile
Boost Mobile

$74 Prepaid

  • 150GB Uncapped download speed
  • Deal: Get 150GB data on first 6 recharges, then 100GB from 7th recharge. New customers only. Activate by 02.11.26
$74.00
Per 28 Day Renewal
#7
Boost Mobile
Boost Mobile

$180 Prepaid

  • 160GB data at download speeds up to 150Mbps
  • Deal: Online Only. Grab the $180 SIM for $160 – save $20. Hurry! Offer ends 19.10.26. Terms Apply
$160.00
Per 6 Month Renewal
#8
Boost Mobile
Boost Mobile

$300 Prepaid

  • 290GB data at download speeds up to 150Mbps
  • Deal: Get 290GB data on new activations, then 240GB from next recharge. Activate by 02.11.26
$300.00
Per 12 Month Renewal
#9
Boost Mobile
Boost Mobile

$365 Prepaid

  • 365GB data at download speeds up to 150Mbps
  • Deal: Grab the $365 SIM for $305 – save $60. Hurry! Offer ends 12 October 2026. Terms Apply
$305.00
Per 12 Month Renewal

The news follows Boost Mobile launching its first 5G plan. This was also notable, as it marked the first time a Telstra powered provider offered 5G.

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.

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