Best UK SIM-Only Plans & Deals For Kids For June 2021

So your child is finally ready for their first phone, leaving you wondering how they grow up so fast – and what the best SIM deal for an eleven-year-old is anyway!

Whether you’re buying a SIM for a child or teen, the number of providers and plans to choose from can make the whole decision a daunting task. Apart from pricing, there are a few things to think of before signing the dotted lines, like parental controls, social media usage and family discounts – all of which we’ll dive into here and more. 

So without further ado, here are the best deals on child-friendly SIMs, along with what to look out for when shopping for a child-friendly SIM.

Best cheap SIM plans for kids with (some) data

If you’re looking for a low budget low data SIM-deal consider carriers like iD Mobile, Tesco, Sky Mobile and Asda where you can find data plans for under £10.

iD Mobile currently has a great rate in the UK for 2GB of data for £6 per month. The plans last for a month at a time and also include data rollover so any unused data carries over into the next month. In addition, there’s now a promotion in which new contracts include five months of Apple Music, Arcade or News+. 

GiffGaff is another provider that offers low-cost data plans, which it calls “goodybags”. Its cheapest goodybag starts at £6 per month for 500MB, while it’s best value plan, called the “golden goodybag”, offers 9GB of data for £10. There’s also options for £8 for 3GB data, and £15 for 15GB data. GiffGaff is also currently offering an extra 1GB of data with selected plans. See other Giffgaff plans.


Smarty is another provider to consider. You can pick up 30GB of data for £10 which offers better value than iD with three times more data, but is slightly more expensive. Smarty has smaller data packages too, and like ID, its plans last 30 days, giving you the flexibility to end service whenever you want. 

Best kids SIM-Only plan for streaming and social media

There’s no doubt your child will want to watch content while on their phones – a lot of it. Thankfully, some network providers bundle streaming services and social channels with their contract plans.

O2 plans include Disney+ for six months, which is sure to keep your child happy. The best plan is 120GB for £20 per month on a 12 month plan.


For lower data limit, there’s Voxi’s 12GB plan for £12 per month, though there are other options Voxi plans include unlimited access to social media to apps like Facebook, Whatsapp, Snapchat, Instagram, Twitter, TikTok and Messenger. This doesn’t include voice and video calls however. 

Best cashback SIM deal – Cheap data plans with high data allowance

If you don’t mind cashback, the best SIM deal for unlimited data right now is with Vodafone for £14.50 per month, available from You’ll just need to claim every few months by sending your bill to Mobiles through the online account. Here’s how:

Family SIM plans and discounts

Don’t forget, if you’re already on O2 you can also qualify for a family discount while also consolidating yours and your child’s bill into one. You can add up to 20 connections on a Family plan with O2 and get up to 20% off from your fifth connection and onwards.

In fact, most major providers offer family plans to existing customers, so it’s worth checking if your current provider has any Family SIM deal programs in place.

Vodafone for instance, offers up to 15% off for existing customers while EE offers 10% off every additional line and a 1GB data boost. 

Parental controls on SIM

All major phone networks in the UK such as EE, O2, Three and Vodafone automatically block 18+ content – though this is via the data connection and not Wi-Fi. 

If your child primarily uses Wi-Fi, you may need other parental controls in place. Here’s how to enable parental controls on Android and on iPhone.

Additionally software like Qustodio and Net Nanny are some of the best parental control software that filter out inappropriate content to keep your kids safe online, while also offering tools to monitor and limit your children’s device and net use. 

Data capping or not?

Most often SIM plans will automatically stop service once you’ve reached the limit, or text you when you’ve used up a sizeable portion.

Parents, however, might still want to consider data or usage capping features when buying a SIM for a child. You might be prompted to sign up for this option when you buy the SIM from the network provider.  This helps limit charges that are out of contract such as picture messaging, long distance calls or additional data usage.

You can choose to set a £0 cap, which means your child won’t be allowed any additional spending outside the plan’s limits. Alternatively, you can set a budget beyond the base value of the plan if you want flexibility. This might be a helpful safety net for your child if they need additional minutes or texts to reach you. O2 for instance, allows a spending cap up to £200.

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