Micro SIM only deals

New! Exclusive online SIM only offers at uSwitch

  • Keep your phone and get a cheap SIM only contract
  • Unlimited data SIM only deals from just £12.00 a month
  • Flexible SIM deals available, from one month onwards

Compare the UK's best Micro SIM only deals

Which SIM size do I need?
virgin vodafone giffgaff three o2
Compare the UK's best Micro SIM only deals
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Virgin Mobile 1 month
#{deal.sim_type_name} Micro SIM

Virgin Mobile
Micro SIM
1 month contract

Virgin Mobile 1 month

Unlimited minutes Unlimited texts 2GB data

£15.00
per month
1 month contract
£15.00
per month
Virgin Mobile See deal
giffgaff 1 month
#{deal.sim_type_name} Micro SIM

giffgaff
Micro SIM
1 month contract

giffgaff 1 month

500 minutes Unlimited texts 1GB data

£10.00
per month
1 month contract
£10.00
per month
giffgaff See deal
Virgin Mobile 1 month
#{deal.sim_type_name} Micro SIM

Virgin Mobile
Micro SIM
1 month contract

Virgin Mobile 1 month

250 minutes Unlimited texts 1GB data

£10.00
per month
1 month contract
£10.00
per month
Virgin Mobile See deal
3 Mobile 1 month

4G contract
#{deal.sim_type_name} Micro SIM

3 Mobile
Micro SIM
Use abroad at no extra cost

3 Mobile 1 month

4G contract

600 minutes Unlimited texts 1GB data

£13.00
per month
Use abroad at no extra cost
£13.00
per month
3 Direct See deal 0808 163 7341
EE 12 month
#{deal.sim_type_name} Micro SIM

EE
Micro SIM

EE 12 month

1000 minutes Unlimited texts 1GB data

£16.99
per month
£16.99
per month
Mobiles.co.uk See deal
O2 12 month

4G contract
#{deal.sim_type_name} Micro SIM

O2
Micro SIM

O2 12 month

4G contract

500 minutes Unlimited texts 500MB data

£11.00
per month
£11.00
per month
O2 Direct See deal 0808 159 6395
Virgin Mobile 1 month
#{deal.sim_type_name} Micro SIM

Virgin Mobile
Micro SIM
1 month contract

Virgin Mobile 1 month

150 minutes Unlimited texts 500MB data

£7.00
per month
1 month contract
£7.00
per month
Virgin Mobile See deal
T-Mobile 1 month
#{deal.sim_type_name} Micro SIM

T-Mobile
Micro SIM
1 month contract

T-Mobile 1 month

500 minutes Unlimited texts 1GB data

£14.99
per month
1 month contract
£14.99
per month
Mobiles.co.uk See deal
giffgaff 1 month
#{deal.sim_type_name} Micro SIM

giffgaff
Micro SIM
Unlimited
data

giffgaff 1 month

250 minutes Unlimited texts Unlimited data

£12.00
per month
Unlimited
data
£12.00
per month
giffgaff See deal
Tesco Mobile 12 month
#{deal.sim_type_name} Micro SIM

Tesco Mobile
Micro SIM
Cheap deal

Tesco Mobile 12 month

250 minutes 5000 texts 500MB data

£7.50
per month
Cheap deal
£7.50
per month
Tesco See deal

SIM only deals

Micro SIM only deals

The term ‘micro SIM only deals’ refers to mobile plans or tariffs that do away with a subsidised handset and simply include a micro SIM card and a monthly usage allowance that you can use with a mobile phone you already own or are looking to purchase separately.

They are ideal for people who just want the calls, minutes and data allowances of a mobile phone deal, which is a great way to save money. Better still, because they often run on rolling contract basis and can be cancelled with just one month’s notice, they also offer consumers amazing levels of freedom and flexibility.

Whether you’re looking to cut your monthly outlay, are happy with an older phone or have bought a brand new phone contract-free and need a SIM card and a monthly allowance, micro SIM only deals are just the ticket.

What is a Micro SIM card?

A Micro SIM card is a plastic module with an integrated circuit that stores network-specific information used to authenticate and identify you as a subscriber on a mobile network.

It is about half the size of a standard SIM card (also known as the mini SIM card) and is used by most modern smartphones and tablets launched since 2010.

It’s also backwards compatible, so you can still use it on older devices using a mini SIM adapter.

To start using a micro SIM card, all you have to do is insert it into the micro SIM card slot, usually located behind the battery (if it’s removable) or on the side of the device, which may involve a removable SIM tray (on the iPhone, for example).

Why choose a Micro SIM only mobile phone deal?

By choosing a micro SIM card only deal, you are not paying nearly as much as you would be if it also included a handset. You might like to buy the latest handset separately to avoid signing up to a long-term contract. Or you might already own a handset – whether it’s your primary device or a secondary/inexpensive model to take with you on your adventures.

Keeping personal and work numbers separate is a great reason to pick up a micro SIM only deal, and they are a fantastic way to save money on roaming with many handsets offering Dual SIM support, enabling you to easily switch between your home and international SIMs.

Which networks offer Micro SIM only deals?

All the major UK networks offer micro SIM only deals in a range of 12-month contracts. These are:

  • O2
  • Vodafone
  • Three
  • EE
  • Orange
  • T-Mobile

Micro SIM only pay as you go deals

If you want to go one step further in saving money on your new or existing handset, you can also pick up micro SIM only deals on a pay as you go tariff that lets you top-up only as much you want or need.

Maybe your contract has run out and you don’t plan to take out a new one. Or perhaps you have already penned a new contract, but don’t want your old handset to fall out of use. With a micro SIM card deal on pay as you go, you can keep your ageing handsets around longer, or even pass them on to another member of the family.

This is why micro SIM pay as you deals are hugely popular with the young demographic. They don’t require signing any contract and allow you to keep an eye on your spending.

Micro SIM card only handsets

Micro SIM cards are compatible with almost any modern smartphone. To name just a few examples, these include Apple’s iPhone 4 and iPhone 4S, Galaxy handsets, HTC One range and the latest additions to Nokia’s Lumia family of smartphones.

You can find out if a particular handset has micro SIM card support or not by visiting its dedicated page at uSwitch.

Don’t forget you can also make micro SIM cards work with older handsets using a mini SIM adapter, which are widely available through mobile accessories vendors.

Looking for an even smaller SIM for your latest smartphone? Check out our best and cheapest Nano SIM only deals

Which SIM do I need?
  • uSwitch SIM

    Standard SIM Card

    This SIM fits hundreds of different devices. Older handset models usually need this size of SIM card, and it is commonly compatible with non-smartphones.

  • uSwitch SIM uSwitch SIM

    Micro SIM

    This SIM fits most of the modern smartphones. It is smaller than the standard SIM, consuming less space.

    Which phones can I use this in?

    • Apple
      iPhone 4/4S and Apple iPad
    • HTC
      One series (excluding the M8)
    • Samsung
      Galaxy S3, S4 & S5 and Galaxy Note 2 & 3
    • Sony
      Xperia S & Z
  • uSwitch SIM uSwitch SIM

    Nano SIM

    This SIM fits the most recent smartphones. It is smaller than the standard and micro SIM.

    Which phones can I use this in?

    • Apple
      iPhone 5/5s and iPhone 5c series
    • HTC
      One M8, Desire 610 and Desire 816
    • Nokia
      Lumia 1520, Lumia 1320, Lumia 930
    • Motorola
      Moto X