How to tell if you’re still on 3G or incompatible phone?

If you're on a 3G-only mobile phone, you'll see a 3G network bar or 'H+' icon in the top-right corner of your phone screen all the time.
If you're using a 3G SIM card, you'll see a 3G network bar or 'H+' icon in the top-right corner of your phone screen all the time; AND you will have received an SMS or direct mailer from Singtel to upgrade your SIM.
If you're on an older, incompatible mobile phone, you would have received an SMS or mailer from Singtel notifying you of the need to switch to a new phone. Click here to check if your phone is compatible.

Still on a 3G SIM card? Get a FREE SIM upgrade!

How to redeem your FREE SIM card.

Head to a Singtel Self-Serve Kiosk located at Singtel Shop for a FREE SIM upgrade. Find a Singtel Self-Serve Kiosk near you here.

Present the original identification documents (i.e. NRIC, Passport or Work Permit) linked to your Singtel prepaid number.

Enjoy your new 4G SIM card.

Still on a 3G or incompatible mobile phone?

Upgrade your 3G or incompatible mobile phone to a brand new 5G phone at attractive prices and with no contract!
Purchase your phone at any Singtel Shop, Exclusive Retailer or online. 

Samsung A15 LTE 128GB

$188(Singtel Shop exclusive offer) U.P. $228

Xiaomi Redmi A3 128GB

$119(Singtel Shop exclusive offer) U.P. $129

Oppo A3 Pro 5G 256GB

$379​(No contract)

Carousell certified phones from

$100(No contract)

Samsung Galaxy A14 5G

$321(No contract)

Prepaid FAQ

How do I know if I am still on a 3G SIM card?
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Is it necessary to upgrade my old 3G SIM card to a 4G SIM card?
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Is upgrading my old 3G SIM card a free service?
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How do I exchange my 3G SIM for a free 4G SIM?
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When can I use my new 4G SIM card after the replacement?
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Can I authorise someone else to do SIM replacement on my behalf?
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How do I know if I am on a 3G-only phone?
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Should I upgrade my phone to a 4G/5G mobile phone?
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What should I do if my 4G/5G device still shows 3G network?
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