How to activate 5G on your Samsung Galaxy S21 5G

5G is the fast new generation of mobile networks currently rolling out across Australia. If you connect to these networks with a compatible smartphone, you can expect seriously fast internet speeds.

But, you may also find that connecting to the 5G network can drain your battery faster than expected too. Our phones are set to find the fastest network possible and will constantly switch between 4G and 5G.

To save battery life, try turning off 5G in your phone’s settings. If you have the Samsung Galaxy S21 5G, follow the instructions below to find this setting and switch from on to off.

Get started

Follow these 8 steps to activate 5G on your Samsung Galaxy S21 5G. This typically takes about five minutes to complete.

#1	TPG	TPG 25GB Data $12.50 Per 1 Month Renewal Min. cost $12.50 Deal: 50% off - $12.50/mth for first 6 months, then $25/mth ongoing. Available until withdrawn. T&Cs apply.	100%	Go to Site
#2	iiNet	iiNet 25GB Data $12.50 Per 1 Month Renewal Min. cost $12.50 Deal: 50% off - $12.50/mth for first 6 months, then $25/mth ongoing. Available until withdrawn. T&Cs apply.	47%	Go to Site
#3	Kogan Mobile	Kogan Mobile 200GB Data $190 Per 365 Day Renewal Min. cost $190 Deal: Get 200GB data for only $190 on the Medium 365 Day Flex Plan. Offer ends 30.11.25	38%	Go to Site
#4	Belong	Belong 25GB Data No Contract $30/mth Min. cost $30	28%	Go to Site
#5	SpinTel	SpinTel 25GB Data No Contract $14/mth Min. cost $14 Deal: Enjoy $8 off for the first 6 months for new customers - $14/mth for first 6 months, then $22/mth	27%	Go to Site
#6	felix mobile	felix mobile 25GB Data $25 Per 1 Month Renewal Min. cost $12.50 Deal: Get 50% off your first 3 mths when you switch to felix. $12.50/mth for first 3 mths, then $25/mth. Use promo code FELIX50. T&Cs apply	22%	Go to Site
#7	Dodo	Dodo 30GB Data No Contract $28/mth Min. cost $14 Deal: 50% off for first 3 mths! Get the $28 Mobile Plan for $14/mth for the first 3 mths. New customers only. Offer ends 06.05.25	22%	Go to Site
#8	Catch Connect	Catch Connect 360GB Data $179 Per 365 Day Renewal Min. cost $179 Deal: Save $121! 360GB for $179 for the first 365 days! Recharges $300/360GB. New customers only. Offer ends 30.04.25	21%	Link not supplied
#9	Boost Mobile	Boost Mobile 17GB Data $26 Per 28 Day Renewal Min. cost $26 Deal: Get 17GB data for the first 3 recharges, then 7GB from 4th recharge. New customers only. Activate by 07.07.25	21%	Go to Site
#10	Tangerine Telecom	Tangerine Telecom 25GB Data No Contract $29/mth Min. cost $29 Deal: Bundle your mobile and nbn plans on the same account to get 10% off your mobile SIM-only plan fees. T&Cs apply.	17%	Go to Site

Are you part of the 60% who are missing out?

Recently, we conducted a survey on our site where we asked 1000 people when they last switched their SIM-only or prepaid plans and 60% of people said they couldn't remember.

#1	TPG	TPG 25GB Data $12.50 Per 1 Month Renewal Min. cost $12.50 Deal: 50% off - $12.50/mth for first 6 months, then $25/mth ongoing. Available until withdrawn. T&Cs apply.	100%	Go to Site
#2	iiNet	iiNet 25GB Data $12.50 Per 1 Month Renewal Min. cost $12.50 Deal: 50% off - $12.50/mth for first 6 months, then $25/mth ongoing. Available until withdrawn. T&Cs apply.	47%	Go to Site
#3	Kogan Mobile	Kogan Mobile 200GB Data $190 Per 365 Day Renewal Min. cost $190 Deal: Get 200GB data for only $190 on the Medium 365 Day Flex Plan. Offer ends 30.11.25	38%	Go to Site
#4	Belong	Belong 25GB Data No Contract $30/mth Min. cost $30	28%	Go to Site
#5	SpinTel	SpinTel 25GB Data No Contract $14/mth Min. cost $14 Deal: Enjoy $8 off for the first 6 months for new customers - $14/mth for first 6 months, then $22/mth	27%	Go to Site
#6	felix mobile	felix mobile 25GB Data $25 Per 1 Month Renewal Min. cost $12.50 Deal: Get 50% off your first 3 mths when you switch to felix. $12.50/mth for first 3 mths, then $25/mth. Use promo code FELIX50. T&Cs apply	22%	Go to Site
#7	Dodo	Dodo 30GB Data No Contract $28/mth Min. cost $14 Deal: 50% off for first 3 mths! Get the $28 Mobile Plan for $14/mth for the first 3 mths. New customers only. Offer ends 06.05.25	22%	Go to Site
#8	Catch Connect	Catch Connect 360GB Data $179 Per 365 Day Renewal Min. cost $179 Deal: Save $121! 360GB for $179 for the first 365 days! Recharges $300/360GB. New customers only. Offer ends 30.04.25	21%	Link not supplied
#9	Boost Mobile	Boost Mobile 17GB Data $26 Per 28 Day Renewal Min. cost $26 Deal: Get 17GB data for the first 3 recharges, then 7GB from 4th recharge. New customers only. Activate by 07.07.25	21%	Go to Site
#10	Tangerine Telecom	Tangerine Telecom 25GB Data No Contract $29/mth Min. cost $29 Deal: Bundle your mobile and nbn plans on the same account to get 10% off your mobile SIM-only plan fees. T&Cs apply.	17%	Go to Site

Considering the majority of SIM-only plans are contract-free - meaning you can switch whenever you like - we found this quite surprising given how the price of data has come down over the past few years.

Do yourself a favour and compare your plan now - we bet you you'll find savings...