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Postpaid vs Prepaid Plans in Singapore (2026)

Choosing between a prepaid or postpaid plan in Singapore? This guide compares payment, data, roaming, contracts, and costs side by side. Find out which plan type fits your budget and lifestyle, plus explore our new contract-free 5G Unlimited+ Plans.
StarHub Editorial, 17 March 2026

What This Guide Covers

 

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What is prepaid and what is postpaid?

Clear definitions, how each works, and the key difference between prepaid and postpaid billing.

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Postpaid vs prepaid side-by-side

Full comparison across payment, data, contracts, perks, and who each plan suits.

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Which plan suits your lifestyle?

Practical scenarios for students, frequent travellers, families, heavy users, and budget users.

Prepaid vs Postpaid: Quick Answer

 

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Choose prepaid for spending control

You pay upfront and use what you paid for. No bill surprises. No contracts. Best for light users, tourists, students, or anyone on a fixed budget.

📱

Choose postpaid for higher data and perks

You pay at the end of the month. Higher data allowances, roaming options, and device payment plans. Most postpaid plans in Singapore today have no long-term contract.

What Is a Prepaid Plan?


A prepaid plan requires you to pay upfront before using any mobile services. You load credit or buy a plan, and your data, calls, and SMS come from that balance. When it runs out, your service pauses until you top up or your plan renews.
 

✅ Pay upfront, no bill at month-end

You know exactly what you spend before the month starts

✅ No contracts required

Switch providers or stop anytime without penalties

⚠️ Service stops when balance runs out

You need to top up to continue using data, calls, or SMS

⚠️ Lower data allowances

Prepaid plans typically offer less data than postpaid equivalents at the same price
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Best for:
Students, tourists visiting Singapore, light users, or anyone who wants full control over monthly mobile spending without the risk of unexpected charges.

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StarHub prepaid:
Our Prepaid Plans include data, local calls, and SMS with no contract. Top up anytime via the StarHub App.

What Is a Postpaid Plan?


A postpaid plan bills you at the end of each month for the services you used. You access data, calls, and SMS throughout the month, then receive a bill. Most postpaid plans in Singapore today are no-contract SIM Only plans, meaning you pay month-to-month with no long-term commitment.
 

✅ Higher data allowances

Postpaid plans typically offer more data at the same or lower monthly cost

✅ Access to roaming and perks

Built-in roaming, device payment plans, and multi-line discounts are common on postpaid

⚠️ Bill comes after usage

Exceeding your plan limits adds charges to your next bill. Some plans have no overage charges.

⚠️ Device plans have repayment terms

If you bundle a phone, you commit to repayment instalments even if you switch providers
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Best for:
Heavy data users, frequent travellers, people looking to purchase a new device on an instalment plan, or families seeking multi-line savings.

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StarHub 5G Unlimited+: 
Our 5G Unlimited+ Plans offer unlimited local 5G data, built-in roaming across 165 destinations, and monthly DeviceDollars with no long-term commitment.

Prepaid vs Postpaid: Full Comparison

 

Feature Prepaid Postpaid
When you pay Before you use. Load credit or buy a plan upfront. After you use. Billed at the end of each month.
Bill surprises None. You spend only what you loaded. Possible if you exceed plan limits. Unlimited plans avoid this entirely.
Data allowance Fixed. Service pauses when data runs out. Higher allowances. Unlimited options available.
Contracts No contracts. Stop or switch anytime. Most SIM Only postpaid plans have no contract today. Device plans have repayment terms.
Roaming Available as add-on packs. Not usually built in. Some postpaid plans include built-in roaming data.
Device payments Not available. Buy your device separately. 0% instalment plans available for new devices.
Multi-line savings Not available. Family or household discounts available on some plans.
Best for Students, tourists, light users, tight budgets Heavy users, frequent travellers, families, device buyers

How to Choose Between Prepaid and Postpaid

 

1. How much data do you use each month?

Light user (under 10GB)

Prepaid works well. You pay for what you need and avoid unused data going to waste.

Heavy user (50GB+) or unlimited

Postpaid gives you better value per GB and access to unlimited data plans.

2. Do you travel overseas regularly?

Occasional traveller

Prepaid roaming add-ons work fine for infrequent trips.

Frequent traveller

Postpaid plans with built-in roaming save you from buying add-ons every trip.

3. Do you want a new phone on an instalment plan?

Happy with your current phone

Both prepaid and postpaid SIM Only plans work. Compare data allowances and monthly cost.

Want a new phone on 0% instalments

Postpaid plans with device payment options are the route. Some offer DeviceDollars credits each month.

StarHub 5G Unlimited+ Plans: The Best of Both

 

Most people choosing between postpaid and prepaid are looking for the same thing: no bill surprises, enough data, and the freedom to switch if things change. StarHub's 5G Unlimited+ Plans are built around exactly that.

 

No contract. Unlimited local 5G data. Built-in roaming. Month-to-month billing. DeviceDollars credited monthly for new device purchases. Multi-line discounts for families.

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Unlimited local 5G data

Stream, game, and browse without worrying about data running out. No speed throttling after a threshold on unlimited tiers.

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Built-in global roaming

Roaming data included across 165+ destinations. No travel SIM needed. Top up roaming data affordably via the StarHub App if you need more.

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No contracts

Upgrade, downgrade, or cancel anytime. No exit fees. No minimum commitment period.

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DeviceDollars

DeviceDollars are credited monthly and applied to 0% instalment device payments. Get a new phone without a 2-year contract.

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Multi-line discounts

Up to 25% off for 4 lines. Add family members or housemates and the savings grow automatically.

Which 5G Unlimited+ Plan Tier Suits You?

 

Plan Best for
5G Lite Moderate users who want 5G access without paying for unlimited data
5G Unlimited+ Core Heavy local users who stream, game, or work from their phone daily
5G Unlimited+ Plus Frequent regional travellers who want built-in roaming and device savings
5G Unlimited+ Max Global travellers and high-demand users who need maximum data and roaming coverage

Frequently Asked Questions

 

Q What is the difference between prepaid and postpaid?

Prepaid means you pay before using the service. You load credit upfront and spend from that balance. Postpaid means you use the service first and pay at the end of the month. The key practical difference today is that postpaid plans generally offer higher data allowances and access to roaming and device payment options, while prepaid gives you tighter spending control with no risk of overage charges.

Q Is a SIM Only plan prepaid or postpaid?

SIM Only plans are postpaid. You receive a bill at the end of each month. However, most SIM Only plans in Singapore today have no long-term contract, so you pay month-to-month with the freedom to switch anytime. This makes them function more like prepaid in terms of flexibility, but with postpaid data allowances and features.

Q Which is cheaper in Singapore, prepaid or postpaid?

It depends on your usage. Prepaid plans start lower in absolute cost but offer less data per dollar for heavier users. Postpaid SIM Only plans often deliver better value per GB at moderate to heavy usage levels. For light users or tourists on short stays, prepaid is typically cheaper. For daily mobile users, postpaid SIM Only plans generally offer more data for a similar or lower monthly spend.

Q What happens when my prepaid data runs out?

Your data service pauses. You retain your number and the ability to receive calls. To continue using data, you top up your balance or purchase a data add-on. With StarHub prepaid, you top up via the StarHub App, at any 7-Eleven, or at a StarHub store.

Q Is it possible to switch from prepaid to postpaid?

Yes. You keep your existing number when switching. Contact your provider or visit a store to migrate your number from prepaid to a postpaid plan. The process is straightforward and your number transfers within the same business day in most cases.

Q Do postpaid plans in Singapore require contracts?

Most do not. The majority of postpaid SIM Only plans in Singapore today run month-to-month with no lock-in period. The exception is when you bundle a device, where the phone repayment schedule typically runs 12 to 24 months. Even then, the mobile plan itself is usually contract-free.

Which plan fits your lifestyle?

Whether you want the total freedom of StarHub 5G Unlimited+ Plans or the simplicity of prepaid, we have an option that matches how you stay connected.

5G UNLIMITED+ PLANS

5G Unlimited+ Plans

Enjoy unlimited local 5G data and built-in roaming with no long-term commitment. Monthly DeviceDollars included.

PREPAID

StarHub Prepaid

Upfront payment with zero contracts. High-speed connectivity designed for flexibility and ease of use.

View 5G Unlimited+ Plans View Prepaid Plans



Disclaimer:

This content is provided for general information and convenience. While we take care in preparing our articles, readers should refer to official sources or professional advice for specific, up-to-date details.

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