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Three SIM only deals for October: how they compare on price

three logo with a SIM cardVisit three.co.uk

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We've taken each of Three's best SIM only plans this month and compared them on price with other UK networks. Here's what we found. SIM Sherpa is your trusty guide. Last updated: 18th October 2021.

Three's best SIM only deals

This month's best SIM only deal on Three

Three SIM card
 
12GB data
£8
a month

12-month dealGet this deal

at three.co.uk
(opens in new window)

Or their £7 for 8GB SIM plan is worth a look too

Three SIM card
 
8GB data
£7
a month

12-month dealGet this deal

at three.co.uk
(opens in new window)

If you wouldn't get through that much data, our next best pick of Three SIM only plans is their 12‑month £7 deal below, which gets you 8GB data and unlimited minutes and texts:

If you're open to joining other networks than Three, you can actually get a similar deal for less, even with providers whose SIMs also use the Three network. See where you can get it for less here:

Three are also offering 4GB for £6 on SIM only

Three SIM card
 
4GB data
£6
a month

12-month dealGet this deal

at three.co.uk
(opens in new window)

They've also got a 100GB for £15 SIM plan at the moment

Three SIM card
 
100GB data
£15
a month

12-month dealGet this deal

at three.co.uk
(opens in new window)

To get an even bigger chunk of data, you might like the £15 SIM only deal running on Three at the moment. It's a 12‑month plan, which comes with 100GB data, unlimited minutes and texts too:

It's definitely one of Three's best. But it's not market-leading. You can get a similar plan on other providers for less, even if you need your SIM to use the Three network. See the networks that beat it here:

Three's £12 for 30GB is our next best choice now

Three SIM card
 
30GB data
£12
a month

12-month dealGet this deal

at three.co.uk
(opens in new window)

Their £16 SIM with unlimited data is our next favourite this October

Three SIM card
 
Unlimited data
£16
a month

12-month dealGet this deal

at three.co.uk
(opens in new window)

For even more monthly data, have a look at Three's unlimited data SIM below at £16 a month, as it's another good deal. It's on a 12‑month plan and comes with unlimited data, unlimited minutes and texts:

While this is a good enough deal to make it into the best of Three's SIMs, you can beat it for price (even if you definitely want a provider that uses the Three network). See which networks that are cheaper here:

Compare all SIM only plans

Compare deals from all networks

How Three's deals compare with other networks

SIM card with magnifying glass

Networks

Providers:

Three logo
ASDA logo
BT Mobile logo
EE logo
giffgaff logo
Honest logo
ID logo
IQ logo
Lebara logo
O2 logo
Plusnet logo
Sky logo
SMARTY logo
Talkmobile logo
Tesco logo
Virgin Mobile logo
Vodafone logo
VOXI logo

Plan

Data: (0MB+)

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