Ireland’s best SIM-only deals

Find and compare cheap SIM-only deals in Ireland. Whether you’re looking for a budget mobile plan or unlimited 5G, you’ll get the best SIM-only deals here.

11 results.
Sorted by year 1 cost
Go Unlimited
Prepay
No contract
Unlimited
Data
Unlimited
Texts & Minutes
fair usage policy applies
Unlimited mins and SMS consider as Maximum duration of a call 2 hours, calls and SMS up to 99 different recipients’ maximum throughout the plan. Fair use policy of 100GB data applies. For full details visit the network's website.
5G Data
30GB EU Roaming
uses eir's network
€11
top up every 4 weeks
for 12 top ups, then €20
100 International Minutes to 31 Countries
Popular offer
€12.99 Plan
No Price Hikes
Prepay
No contract
Unlimited
Data
5,000
Texts & Minutes
5G Data
20GB EU Roaming
including UK
uses Three's network
€12.99
top up per month
€12.99 Activation fee
Ends Today
No Price Hikes
One Month Freei
Order SIM by 02/04/2026 and buy first plan before 17/04/2026 to get one month free. Offer ends 02/04/2026. T&Cs apply.
€18 Plan
Prepay
No contract
Unlimited
Data
3,000
Texts & Minutes
fair usage policy applies
EU roaming limited to 250 minutes and texts. For full details visit the network's website.
4G Data
25GB EU Roaming
including UK
uses Vodafone's network
€18
top up every 4 weeks
Unlimited Plus
Prepay
No contract
Unlimited
Data
Unlimited
Texts & Minutes
fair usage policy applies
Unlimited mins and SMS consider as Maximum duration of a call 2 hours, calls and SMS up to 99 different recipients’ maximum throughout the plan. Fair use policy of 100GB data applies. For full details visit the network's website.
5G Data
37GB EU Roaming
uses eir's network
€10
top up every 4 weeks
for 6 top ups, then €25
Unlimited international minutes to 35 countriesi
Fair Usage Policy applies.
Prepay Extra
Prepay
No contract
Unlimited
Data
3,000
Texts & Minutes
5G Data
45GB EU Roaming
including UK
€20
top up every 4 weeks
Prepay Data Ultra 5G​
Prepay
No contract
Unlimited
Data
1,000
Texts & Minutes
fair usage policy applies
For full details visit the network's website.
5G Data
29GB EU Roaming
including UK
uses Three's network
€20
top up every 4 weeks
€15 for Tesco Clubcard holdersi
Clubcard customers are eligible to avail of this plan for €15 when top-up is scheduled (€20 Regular Price) T&C's apply.
100 international minutes
Three Super Surfer
Prepay
No contract
Unlimited
Data
200
Texts & Minutes
fair usage policy applies
For full details visit the network's website.
5G Data
30GB EU Roaming
including UK
€20
top up every 4 weeks
Data Unlimited 5G
Prepay
No contract
Unlimited
Data
100
Texts & Minutes
5G Data
45GB EU Roaming
including UK
€20
top up every 4 weeks
100 international minutes
Unlimited Vodafone to Vodafone minutes and texts
Free top up when you switchi
Switch to Pay as you go and get your second top up free! You will get a top up voucher code via SMS after activating your SIM card. Offers available to customers who join after 30th January only. T&Cs apply.
Get up to €120 bonus crediti
Register your details and top up, and Vodafone will add €10 per month for 12 months. You must top up every 28 days to reactivate your plan and receive your bonus credit. T&Cs apply.
Three Connect Complete
Prepay
No contract
Unlimited
Data
Unlimited
Minutes
3,000
Texts
fair usage policy applies
Fair use policy of 10,000 minutes applies. For full details visit the network's website.
5G Data
37GB EU Roaming
including UK
€25
top up every 4 weeks
100 International Minutes
Prepay International
Prepay
No contract
Unlimited
Data
3,000
Texts & Minutes
5G Data
45GB EU Roaming
including UK
€30
top up every 4 weeks
120 International minutes
Extra Unlimited 5G
Prepay
No contract
Unlimited
Data
Unlimited
Texts & Minutes
5G Data
45GB EU Roaming
including UK
€30
top up every 4 weeks
100 International minutes
Free top up when you switchi
Switch to Pay as you go and get your second top up free! You will get a top up voucher code via SMS after activating your SIM card. Offers available to customers who join after 30th January only. T&Cs apply.
Get up to €120 bonus crediti
Register your details and top up, and Vodafone will add €10 per month for 12 months. You must top up every 28 days to reactivate your plan and receive your bonus credit. T&Cs apply.

What is a SIM-only plan?

It’s a mobile phone contract that includes only minutes, texts and data. You don’t get a new phone with a SIM-only deal; you only pay for airtime.

SIM-only plans in Ireland are available as either 12 or 24-month contracts, or 30-day no-strings-attached plans.

There are two ways to pay for a SIM-only deal.

  • Bill pay: You’ll get a fixed monthly bill for data, calls and texts you’ve used in the previous month
  • Prepay: Simply top up your phone to pay for your airtime upfront. Also known as Pay As You Go

SIM-only plans are cheaper than plans which include a mobile phone because you’re not paying to spread the cost of the new phone.

What are the advantages of a SIM-only deal?

Switching to a SIM-only, bill pay deal is ideal if you don’t want a new phone and are not locked into a mobile contract. The downside of a bill pay SIM is you don’t get a new phone, and you may need to unlock your phone.

A prepay SIM is a flexible option if your usage varies or you don’t want to commit to a monthly bill. With a prepay plan, you can top up with data, calls and texts whenever you need.

With bill pay SIM-only plans, discount prices can increase after the introductory period, but you can move on to a cheaper deal and keep your number once your contract has ended.

Here’s how bill pay and prepay SIM only compare:

SIM-only bill pay

  • Discounted deals
  • Fixed monthly fee
  • No topping up
  • Keep your number

SIM-only prepay

  • Useful for under 18s
  • For those with a poor credit history
  • No contract tie-ins
  • If you don’t have a bank account

How to compare SIM-only packages

To get the best SIM-only deal for your needs, think about how you use your phone and consider what’s important to you.

Here are some questions to guide your choice:

  • Do you really need an unlimited data plan?
  • How many calls and texts do you make?
  • Do you make international calls or need EU roaming?
  • If you’re a light user, could a prepay SIM work out cheaper?
  • Do you want the security of a 12-month plan or the freedom of a 30-day rolling contract?
  • Do you want superfast 5G data, and what’s 5G coverage like in your area?

Once you’ve determined your data usage and the type of plan that suits you best, Switcher.ie’s SIM-only comparison can help you compare deals.

We’ll show you all the best mobile bill pay or SIM-only offers on the market, with key features highlighted, so you can simply choose the best plan for your needs.

What are the cheapest SIM-only plans?

The cheapest plan may not always be the best deal, so it’s important to compare all plan features - like data, contract type and coverage - before choosing.

Compare low-cost, flexible deals from MVNOs like 48, An Post Mobile, Clear Mobile, GoMo and Tesco Mobile, using our comparison tool above.

Should you get a 5G data plan?

It depends on the age of your smartphone and how you use your mobile.

If you use your mobile for watching movies, online gaming and video calling and live in an area with good 5G coverage, then it’s worth considering because all the latest Samsung and iPhones are 5G enabled.

However, if your smartphone is mainly used for calls, messaging and surfing, it’s probably not worth paying extra for a 5G data plan.

Learn more about 5G in our guide How 5G mobile works in Ireland.

Can you get a SIM-only deal for international calls?

There are some SIM-only deals that offer EU, UK or international calls as part of your monthly plan. This type of plan is ideal if you regularly make overseas calls.

Most of Ireland’s top network providers offer international calls or roaming data plans, although expect to pay more if you need lots of international minutes.

Are refurbished phones any good?

As inflation bites and consumers become more cost-conscious and sustainably aware, sales of refurbished phones jumped 5% last year.

If you’re on a tight budget, consider buying a pre-owned phone. A refurbished phone is ideal if you want to buy a phone outright and keep monthly costs down with a SIM-only deal.

Our guide Should you buy a refurbished phone? can help you decide if it’s right for you.

What happens when you switch your mobile provider?

Switching your mobile phone network is simple; just pick a plan, and your new provider will handle the rest. You can even take your number with you.

Just remember to check you’re out of any contract before signing up for a new plan. This will ensure you avoid early exit fees, which can be high.

If you have a bill-pay deal, you’ll need to contact your current provider to cancel your plan, and once you’ve paid your final bill - cancel any direct debits.

The only difference you’ll notice when you change providers is the cost. You may also get a variation in signal, but check network coverage before you make the switch.

Learn more about what happens when you switch mobile provider, your cancellation rights and moving your number in our in-depth guide How to switch your mobile provider in Ireland.

SIM-only FAQs

Can I keep my mobile number?

Yes, this is called ‘porting’ your number and makes changing network a much smoother process.

Keeping your number means you won’t have to tell all your friends and family your new number or risk losing contact with anyone.

Your new network will guide you through the steps you need to take to port your mobile number

How much data do I need?

The amount of data you need will depend on what you use the internet for on your mobile phone.

If you mainly use the data on your phone to browse the internet and send messages via Whatsapp or other messaging services, you’d be considered a light user. Streaming a lot of video content or online gaming would make you a heavy user.

Data packages are normally measured in GBs, which is 1,024MBs. Here are some examples of data usage:

  • visiting a website uses up around 1MB
  • watching TV shows or movies on Netflix uses about 1GB for every hour of SD video
  • streaming TV and movies in HD uses about 3GB per hour

Is a 30-day or 12-month SIM-only contract best?

The kind of contract you go for will totally depend on your circumstances.

If you’d like to try a new provider and want to test out the service and coverage, you could opt for a shorter-term contract to try it out.

Longer contracts tend to be cheaper, however, so if you’re happy to lock in for longer, you could save money in the long run.

Which mobile networks provide SIM-only plans?

In Ireland, SIM-only deals are provided by these networks:

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