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Various logos of UK mobile networks

Mobile special offers: current best deals on SIM only & phone contracts

Phone, SIM card and special offer tag

The retailers featured on this page may compensate us when our readers follow links to their websites and make a purchase. More

We list every UK mobile network's latest special offers on one page to help you get the best value out of your next mobile deal. SIM Sherpa is your trusty guide. Last updated: 16th August 2019

Networks featured

Three logo
BT Mobile logo
EE logo
giffgaff logo
ID logo
O2 logo
SMARTY logo
Virgin Mobile logo
Vodafone logo
VOXI logo

BT Mobile

Claim up to £75 Reward Cards with SIMs and phones

Order a qualifying smartphone or SIM by 22nd August 2019 and you can claim a pre-paid Mastercard from BT, loaded with up to £75 of money to spend practically anywhere.

On SIM only, you can also get a Reward Card worth up to £75, depending on the plan (see full range of SIMs and rewards here). This deal lets you claim a £55 Reward Card:

Meanwhile on smartphones, you can claim Reward Cards loaded with up to £75 with top-end models like iPhone XS and the Samsung Galaxy S10 range on the biggest plans.

Useful link: See latest BT Mobile Reward Card offers in our guide

EE

EE's triple data on Flex SIMs

EE flex triple data banner

See all Flex SIM deals

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

EE are currently offering triple data for three months on two of their 1-month Flex SIM plans:

Both deals are available until 30th September 2019.

Meanwhile, if you're after a smartphone contract, be sure to look at the page here for iPhone deals on EE, and the one here for Samsung Galaxy plans, which show all the promotional plans EE have this month.

Useful link: See all EE's latest offers > (opens in new tab)

giffgaff

£5 £10 free giffgaff credit with your first £10 top up

giffgaff free credit offer

Get £10 free credit

at giffgaff.com
(opens in new window)

On SIM only, giffgaff don't really tend to have big discounts or promotional plans ever. But you can get £5 £10 of free credit when you first sign up.

Use our special order link here, top up with at least £10 before 31st August (or buy a goodybag for £10 or more) and giffgaff will automatically add £10 of welcome credit to your account in two £5 lots.

If you're after a smartphone, you can't use the £5 £10 free credit offer. See giffgaff's latest phone contract pricing here.

Useful link: Get free credit on giffgaff now

iD Mobile

Unlimited minutes with iD's affordable SIMs

iD Mobile unlimited texts and minutes banner

See all deals

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

iD Mobile are always among the cheapest mobile networks for the lower data plans. This month they've got a couple of competitive deals.

Their £9 deal currently comes with 3GB of data allowance and unlimited minutes:

Or there's also unlimited minutes on their 1GB for £6 option:

Useful link: All iD Mobile's special offers

O2

O2's cheaper 18-month SIM only deals

O2's summer SIMs

See all SIM offers

at O2.co.uk
(opens in new window)

If you're willing to commit to a longer 18-month contract on SIM only, O2 are offering improved pricing on these plans until 4th September 2019:

Or get 40GB for £23 a month (18-month contract) or 50GB for £26 a month (18-month contract)

It's also often worth checking out Carphone Warehouse's O2 cashback offers here, which occasionally work out better than going direct with O2 and qualify to get an automatic cheque through the post.

Useful link: See all O2's latest offers

Plusnet

Plusnet offers with unlimited minutes and texts

Plusnet Mobile Reward Card

See 12‑month plans

at Plus.net
(opens in new window)

The most competitive deal from Plusnet Mobile currently is this 12-month plan ending on 2nd September:

Or if you'd rather not commit for 12 months, this 1-month plan is a decent option available until 22nd August:

Useful links: See all Plusnet Mobile 30-day plans

Sky Mobile

Double data on Sky's 1GB 2GB plan

Sky Mobile 8GB offer banner

Get double data

at Sky.com
(opens in new window)

Sky have switched their main SIM only offer to a superb-value 1GB 2GB for £6 a month with unlimited Sky app streaming data, when you order before 12th September:

On phone contracts, the same 2GB for the price of 1GB on each model's entry-level plan means more people will be able to get the amount of data they need on the cheapest deal.

Full offer terms at Sky.com

Useful link: All current Sky Mobile offers

SMARTY

Unlimited data SIM 25% cheaper

SMARTY Unlimited data offer banner

See unlimited data offer

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

Order by 28th August to get SMARTY's unlimited data SIM at 25% off:

At the time of writing, it's the cheapest 1‑month unlimited data deal in the UK - with a genuine £6.25 saving per month vs. the usual cost.

SMARTY are giving you the lower price for as long as you stay on the plan. And remember, this is only a 1‑month plan, so you're free to leave whenever you like.

Useful link: Full terms and conditions at SMARTY.co.uk

Tesco Mobile

Tesco Mobile's feel-good SIM deals

Tesco Mobile Summer Sale banner

See all sale items

at tescomobile.com
(opens in new window)

Order soon to benefit from improved prices on SIM only plans and phones with Tesco Mobile including these two competitive plans:

If you're after a phone, there's some decent discounts off the device cost of all the iPhone, Samsung and Motorola models listed here

Useful link: See all Tesco Mobile offers

Three

Three's 6 months half price unlimited data offer

Three unlimited data SIM

See current offer

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

Three are currently offering 6 months half price on their 24-month unlimited data plan:

Our information from Three is that the 6 months half price offer on the unlimited data plan will be available until 22nd August 2019.

Or if you don't want to commit to such a long contract, their 12-month unlimited data SIM is now £20 a month too.

There's also 6 months half price on loads of models in Three's smartphone range here when you take one of their unlimited data plans too.

Useful links: See all latest Three offers

Virgin Mobile

Fantastic SIM only deals with Virgin on the EE network

Virgin Mobile SIM sale banner

See SIM only deals

at virginmedia.com
(opens in new window)

Vodafone

New unlimited 5G data plans available now

Vodafone unlimited data SIMs

See unlimited plans

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

Vodafone have just launched a range of 5G-ready SIM only plans with unlimited data that we think are going to be very popular.

Some of them do have speed caps built in that mean you'll only get mediocre 4G speeds. But this deal gets you 5G and 4G at Vodafone's top possible speeds:

You'll need a 5G-ready phone and be in an area with 5G coverage. If you have neither, you'll still get 4G at Vodafone's top speeds.

The unlimited plans have also launched on a range of Vodafone's phone contracts too (see the models here on their website).

Useful link: Vodafone's 5G rollout latest

VOXI

No headline offers so far this month

VOXI's best value SIM

How it works

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

There aren't any headline offers from VOXI this month on their SIM only plans or phone contracts. You can only get their standard range of plans

The closest thing to a special offer currently available is their refer-a-friend scheme that gets you and a friend a £10 voucher for getting them to join VOXI.

It works by sharing a tracked link for your friend to follow. Here's how the process works in full.

Useful link: VOXI's regular-priced plans

SIM Sherpa can help you find your next SIM only deal

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