Three Mobile Review – No data caps, Truly Unlimited plans: Is it any good?

Our Ratings

Three Mobile
4.3 / 5

Before you buy a Three SIM Only plan or a Pay Monthly phone, take a look at our comprehensive review.


  • Pay monthly SIMs
  • Pay monthly phones
  • Pay as you go
  • Buy a Pay as you go phone and Pay as you go Pack
  • No Data Caps and Truly Unlimited Plans
  • Top up
  • Sell your phone, tablet or wearable device
  • Keep my number
  • Network coverage checker
  • Customer service number
  • Customer rating
  • Conclusion
  • Our ratings

Pay monthly SIMs

Three Mobile, provides you with options to get a Pay monthly SIM on a 24-Months, 12-Months or 1-Month contract.

All the Monthly plans come with Unlimited minutes and texts. And, you can roam in over 70 countries around the word for a low daily charge.

All their SIM only plans are 5G ready.

Here is a selection of their SIM deals

Get DealPriceDataMinutes and TextContract
Get Deal£61GBUnlimited24 months
Get Deal£1412GBUnlimited12 months
Get Deal£1430GBUnlimited24 months

Check all the latest Three monthly SIM only plans here: Pay monthly plans.

Pay monthly phones

You can get a large selection of phones on a monthly contract with Three.

Here are a section of phones available on a monthly plan

Get DealPhoneMonthlyDataMinutes / TextUp front cost
Get DealiPhone 14 128GB£61£30.50UnlimitedUnlimited£30
Get DealSamsung S22 128GB£58UnlimitedUnlimited£30
Get DealSamsung A23 5G£29UnlimitedUnlimited£20

Check out all their pay monthly phones, here: Three Pay Monthly phones.

Pay as you go

With Three Pay as you go, you can get a free SIM and buy a Pack from their range.

They Pack last for 1 month and any unused data can be rolled over to the next month.

The cheapest Pack starts at £10 for 8GB, with Unlimited minutes and Unlimited texts. Check out all the Pay as you go Packs and order a SIM card, here: Pay as you go.

No Data Caps and Truly Unlimited Plans

Three say they offer no data caps on your plan and it is truly Unlimited plans.

Top up

There are a few ways you can top up your Pay as you go Sim, these are:
1) You can top up by credit card.
2) You can buy an E Top UP Voucher. .
For more information on Three top up, go here: Three Top UP.

Sell your phone, tablet or wearable device

With Three, you can sell your phone, tablet or wearable device. Get more information, here: Sell your phone or device.

Keep my number

You can keep your number with Three Mobile. You will need your PAC code. Get more information, here: Keep my number.

Network coverage checker

Three covers 99% of the UK population with their network. However, coverage might differ in locations, so before taking out a Three Mobile contract, it is a good idea to check the coverage in your area. Check Three coverage, here: Three network coverage checker.

Customer service number

The customer service number for Three is: 333 from your Three phone.
Or you can call 0333 338 1003.

Customer rating

Three’s customer rating from Trustpilot is 1.6 stars, out of 5 Stars, which is rated as ‘Bad’ .


Three offers a good choice of pay monthly SIM contracts, pay monthly phones and Pay as you go.

Their customer service is rated as ‘Bad’ on Trustpilot. So, it looks like some of their customers are not happy at all.

However as their monthly contract goes, they do offer flexible contracts lengths and they offer competitive prices.

Our ratings

We give Three Mobile: 4.3/5

Three Shop

Go to Three Mobile Shop here: Three Mobile Site.

Additional Information

If you would like to read our review on VOXI Mobile, go here: VOXI Review: SIM Card Plans with Endless Social Media and Video.

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3.7/5 - (3 votes)