Upgrade to 5G SA SIM card with Zero1

Experience faster speed, lower latency, and better connectivity!

Last updated 22 Apr 2025

Why upgrade to 5G SA?

Zero1 is upgrading from 5G NSA (Non-Standalone) to 5G SA (Standalone) to deliver a truly next-generation mobile experience — designed for speed, stability, and efficiency.

What you’ll enjoy with 5G SA:

⚡ Faster Speeds: Enjoy quicker downloads, seamless streaming, and snappier browsing.
📶 Lower Latency: Ideal for real-time activities like video calls, online gaming, and live streaming.
🔋 Improved Efficiency: Smarter connections that help your device save battery life.
🌐 Stronger Network Coverage: Better performance in high-traffic and dense urban areas.

Who needs to upgrade?

This SIM card upgrade is for existing Zero1 customers who want to enjoy the full benefits of our enhanced 5G Standalone (SA) network.

You’ll need to upgrade your SIM card if:

You’re an existing Zero1 user and wish to access 5G SA
You received your current SIM before the launch of our 5G SA network

Note: New customers will automatically receive a 5G SA-compatible SIM card at sign-up — no action needed.

Is your device 5G SA compatible?

Before upgrading your SIM, make sure your phone supports 5G SA:

Device Compatibility

To ensure your device supports 5G Standalone (SA), we recommend checking Zero1’s list of compatible models first. If your device isn’t listed, you can verify its 5G SA support by referring to the manufacturer’s website or your phone’s user manual.

Software Updates

Ensure your device software is up to date, as 5G SA support may require the latest firmware version.

Request your free 5G SA SIM card

Fill in the form below to request your free 5G Standalone (SA) SIM card.
You’ll receive a confirmation email after submitting the request.

How to upgrade your SIM card

Upgrading to your new Zero1 5G SA SIM card is simple. Just follow these easy steps:

Step 1: Submit your request

Fill out the form above with your details and choose your preferred delivery method (postage or self-collection).

Step 2: Receive your new SIM

Your new SIM card will be mailed to you or made available for collection at our Customer Service Centre once your request is processed.

Step 3: Activate your SIM

You can activate your new SIM card using any of the following methods:

Check the activation instructions on the SIM card packaging
Use the Zero1 app to access the activation portal
Click the activation link provided in your confirmation email.

For detailed guidance, refer to our SIM activation guide.

Step 4: Insert & Restart

After activation, insert the new SIM card into your phone and restart your device.
Ensure that mobile data is enabled and your phone’s software is up to date.

You’ll then be connected to Zero1’s 5G SA network, ready to enjoy enhanced speed, coverage, and reliability.

Frequently asked questions

1. Do I need to upgrade my SIM?

If you’re an existing Zero1 customer and want to access our enhanced 5G SA network, upgrading is recommended.

2. Is there a cost for the new SIM?

No, the upgrade is completely free.

3. How long will delivery take?

Postage usually takes 3–5 working days. Self-collection is immediate upon confirmation.

4. What if my phone doesn’t support 5G SA?

You can still use your new SIM on 4G or 5G NSA networks, but won’t get the full benefits of 5G SA. Check compatible devices here.

5. Will I still get 5G service if I don’t upgrade?

You may still receive 5G NSA service, but it will rely on older infrastructure and won’t deliver full 5G SA benefits.

6. Will my phone number or plan change?

No changes to your number or plan; only the SIM card is updated.

7. Can I upgrade SIM cards for multiple lines?

Yes, just submit a separate request form for each line you wish to upgrade.

8. What do I do once I get the new SIM?

Follow the activation instructions provided on the SIM card packaging, through the Zero1 app activation portal, or via the activation link in your confirmation email.
Once your SIM is activated, insert it into your phone, restart the device, and ensure your mobile data and software are up to date.

Having issues?

We are happy to help, just message us on Facebook or send us an email at yes@zero1.sg should you encounter any challenges.

More information

Zero1 develops life solutions by making it #AllAbout you, ensuring that you receive #OnlyTheBest that we have to offer and striving to help you live your life with #ZeroLimits.

Zero1 is a licensed Mobile Virtual Network Operator (MVNO) that provide a number of mobile plans with unlimited data. Do check out our other offerings on the Zero1 website today.

Explore Zero1 Plans Today!

Ready to upgrade your mobile experience? Explore our range of Zero1 plans tailored to fit your needs. Whether you’re seeking affordable data packages, reliable connectivity, or exclusive offers, our Zero1 plans have something for everyone. Start discovering the perfect plan for you!