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Three Unlimited Data SIM Only Deals

  • Great unlimited data SIM only deals with Three
  • Every deal is loaded with 5G data included
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Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
Unlimited Data
Unlimited Mins
Unlimited Texts
12 month contract
£17.00 a month
12 month contract
£17.00 a month

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
Unlimited Data
Unlimited Mins
Unlimited Texts
24 month contract
£11.50 a month
24 month contract
£11.50 a month
6 months half price

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
Unlimited Data
Unlimited Mins
Unlimited Texts
1 month contract
£24.00 a month
1 month contract
£24.00 a month
  • Overview

Overview

Three 5G unlimited data

Contents list

  1. What plans are available with unlimited data?
  2. Why choose Three unlimited data
  3. Are there any fair usage restrictions?
  4. Are there any speed restrictions?
  5. Is unlimited tethering included?
  6. Can unlimited data be used abroad?
  7. Is 5G data included?
  8. Unlimited plans with a multi-plan discount?
  9. Can I gift data on an unlimited plan?
  10. Alternatives

An unlimited data plan is the best way to experience 5G, as with all the speed 5G provides, you’re going to want to download and stream a lot, so by pairing 5G with unlimited data you won’t need to worry about eating through your allowance.

And if you go with Three then there are loads of different unlimited data options, from Pay Monthly with a handset to SIM Only, Data Only, and beyond.

Below, we’ve covered all the available 5G unlimited data plans on Three, as well as looking at other key aspects of Three’s unlimited data offerings, such as whether they’re truly unlimited, and whether you can use unlimited data abroad.

What plans are available with unlimited data?

Plan type

Unlimited data offered?

Duration

SIM-only

Yes

1, 12 or 24 months

Pay monthly

Yes

24 months

Home broadband

Yes

12 or 24 months

Mobile broadband

Yes

1, 12 or 24 months

Data-only

Yes

1, 12 or 24 months

Pay as you go

Yes

1 month

Three offers unlimited data on every key plan type, including SIM Only, Pay Monthly with a phone, Data Only, home broadband, mobile broadband and Pay As You Go. Note that in the case of mobile broadband only 4G data is available at the time of writing, but the other plan types can all be had with 5G.

Why choose Three unlimited data

Three isn’t the only network offering unlimited 5G data, but it is a top choice for this, and there are many reasons for that.

For one thing, a 5G network is only as good as its coverage, and Three excels there, with hundreds of towns and cities having 5G at the time of writing, and more getting it all the time. Three also has more 5G spectrum than EE, Vodafone or O2, which should help it deliver a more robust 5G network.

Plus, Three has won numerous awards over the years, including being awarded the Best Network for Data by the Mobile Choice Consumer Awards in 2019, so you know it’s a good place for heavy data users.

Three also has a Three+ app, which provides customers with all sorts of discounts, freebies, and other perks from leading brands.

And you get all sorts of additional services on Three, like spending caps, plus Wi-Fi Calling and 4G Calling, so you can stay in touch even when there’s no 5G.

Are there any fair usage restrictions?

Fair usage in the UK

Fair usage abroad

None

12GB per month

Three offers truly unlimited data in the UK, meaning no fair usage restrictions at all. However, you are limited to 12GB per month when roaming abroad. That makes it better than most networks for UK use, but not one of the best if you want to use a lot of data on your international travels.

Are there any speed restrictions?

No, Three doesn’t restrict your speed at all on unlimited data plans (or on any of its current plans). So the only limitation is the coverage and network technology in your area – if you’re near a 5G mast then you can expect incredibly fast speeds.

Is unlimited tethering included?

Yes, Three allows you to use as much of your data as you want when tethering, and with an unlimited data plan that means there aren’t any tethering limits, at least in the UK. When abroad, you’re limited to 12GB of data per month in the EU, while outside the EU tethering isn’t allowed at all unless you purchase a Data Passport (for £5 per day).

Can unlimited data be used abroad?

No, when you’re abroad you can only use up to 12GB of data per month on Three, even on an unlimited data plan. Additional use will cost extra. From May 23rd, 2022, you’ll also have to pay £2 per day to use any of your allowances abroad in Europe, or £5 per day when further afield, though this won’t apply to customers who joined or upgraded before October 1st, 2021.

However, a Data Passport is available which offers unlimited data when abroad for £5 per day.

Is 5G data included?

Yes, 5G comes as standard on all of Three’s SIM cards, which means whatever plan you choose you’ll have access to 5G data – you just need to make sure your device also supports 5G.

Are unlimited plans available with a multi-plan discount?

Three provides exclusive offers to existing customers, so that if they get a second SIM or device, they can get it at a discount. However, these offers only apply to select plans and devices and are changing all the time. For the full, up to date list, check Three’s site.

Can I gift data on an unlimited plan?

Three doesn’t offer data gifting, so if you choose an unlimited data plan then only you will be able to benefit. The exception to that is to use tethering, since you could always share your connection with someone else’s device and essentially gift your data to them like that. There are no restrictions when tethering in the UK either, but you do need to be near the other device for this to work.

Alternatives

5G network

Unlimited 5G data offered?

Plan types with unlimited 5G

EE

Yes

Pay Monthly, SIM Only, home broadband, mobile broadband, data-only

Vodafone

Yes

Pay Monthly, SIM Only, PAYG, home broadband, mobile broadband, data-only

O2

Yes

Pay Monthly, SIM Only, data-only

Asda Mobile

Yes

SIM Only

BT Mobile

Yes

SIM Only

CMLink

No

None

Giffgaff

Yes

Pay Monthly, SIM Only

iD Mobile

Yes

Pay Monthly, SIM Only

Lebara

Yes

SIM Only

Lyca Mobile

Yes

SIM Only

Sky Mobile

No

None

Smarty

Yes

SIM Only

Tesco Mobile

Yes

Pay Monthly, SIM Only

Virgin Mobile

Yes

Pay Monthly, SIM Only

VOXI

Yes

Pay Monthly, SIM Only

Loads of UK networks offer unlimited data, so there are plenty of choices beyond Three. Other options include EE, O2 or Vodafone, which are the UK’s other major networks, and each of which have different coverage to Three (and to each other).

If you want the same coverage as Three then consider Smarty or iD Mobile, both of which are smaller and often cheaper networks.

Unlimited 5G data is also available on Lebara, BT Mobile, Giffgaff, Lyca Mobile, Tesco Mobile, Virgin Mobile, VOXI, and Asda Mobile.

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