SMARTY vs Three: all the differences between the two networks

✔ Three and SMARTY are on the same network

If you didn't know, SMARTY uses the Three mobile network. In fact, it's actually owned directly by Three themselves. Three is a mobile network in its own right, distinct from EE, Vodafone and O2.

Three is the smallest UK network in terms of coverage for calls and 4G data for the whole country. Outside built-up places, you may find yourself on 3G more often. And in the country, you can get blackspots.

On paper, that doesn't sound great. But it's worth using coverage checkers below, because if their network is good in the places you use your phone, the rest of the country is irrelevant.

We've tested a SMARTY and Three SIM card in the same test phones simulataneously. There's no difference in signal. You don't get an inferior 4G or 3G experience on SMARTY to Three. 5G is different (see below).

Useful link:
Three's latest network developments

✔ Only Three has their 5G network live in 68 places

Now that Three have switched on their 5G network, there is technically a difference in coverage between them and SMARTY, if you're an early adopter and have a 5G-ready phone.

5G is live on Three in parts of these 68 locations with more to come. We're still talking about a street-by-street basis, with coverage focussing on busy places like train stations, high streets and event venues.

SMARTY say they do have plans to add 5G but don't have a confirmed date, so currently only offer 4G and 3G. Three have included the faster 5G technology on all their plans at no extra cost, including pay as you go.

If you're toying between the two, you could take a 1-month deal on either and either wait it out.

Useful link: Latest 5G rollout news on Three

✔ Expect typical downloads around 20 Mbps on both

We'd say the Three network is one of the better choices when it comes to download speeds over a 4G data connection. They normally come in joint-second place in speed tests by independent testers.

Opensignal and Speedtest by Ookla take millions of measurements on people's smartphones with each network. On average they found Three customers get downloads around21.60 Mbps.

That's like a decent mid-range home broadband speed. And will comfortably support things like HD videos without buffering. Our own testing suggests minimum speeds around 9 Mbps and a max around 43 Mbps.

We've taken a SMARTY and Three SIM card out in identical test phones and conducted simultaneous speed tests in different types of locations. We found no baked-in speed difference between SMARTY and Three.

Useful link:
SMARTY's policy on network throttling

✔ You get WiFi calling on Three but not on SMARTY

Three are one of the UK's main four networks and SMARTY are a cheaper no-frills brand, so there were bound to be some premium touches that you don't get. And WiFi calling / 4G calling are two examples.

WiFi calling is a feature that lets your phone tap into the Three network via a WiFi signal, if you're somewhere where conventional mobile signal struggles to reach. And we actually rate Three's as the best in the UK.

It lets you make and take calls as usual. And even send/receive SMS text messages too. Three's 4G VoLTE service lets your phone use 4G instead of just 3G for calls, so improves coverage and audio quality.

Without WiFi calling on SMARTY, you may find you have worse indoor reception for calls, because the Three network's signal finds it harder to get through building materials than other networks.

Useful link:
More details about Three's WiFi calling and supported phones

✔ Three get you free WiFi on the Underground, SMARTY don't

If you're a regular in London, you'll know that most stations on the TFL network now have WiFi on the platforms, which you can either pay to use or get included with your mobile / broadband deal.

All Three customers can use the service for free, whether you're pay monthly or pay as you go (as long as you've used your phone in the last 30 days). Just sign in once and it'll remember you in future.

The service is a useful way to save data, although it'd be better if the trains themselves had WiFi too. It combines well with WiFi calling to make calls underground where signal would never reach.

Even though SMARTY do hint this is something that could be added in future, they don't offer it today. It's one of the other differences between SMARTY and Three worth knowing.

Useful link:
Full details on Three's free WiFi on the Underground

✔ Three's worldwide roaming massively trumps SMARTY's

Roaming is one area where Three have a built-in advantage over SMARTY, thanks to their well-known inclusive worldwide roaming scheme Go Roam, formerly known as Feel At Home.

While every network has to offer roaming at no extra cost in the EU, Three extend this to a total of 71 worldwide countries, including the USA and Australia (Three list all the included countries here).

Anyone's who's used their phone in these types of places knows the cost is often eye-watering on many networks. So if you travel long-haul regularly, the scheme is worth its weight in gold.

And we like the fact you get it on every pay monthly plan (phone or SIM) and even on pay as you go, when you buy a monthly Add-on (bundle). Three certainly beat what you get with SMARTY for long-haul.

Useful link:
Full roaming costs and terms on Three

✔ SMARTY's roaming will suit anyone who stays in Europe

If you're someone who mostly takes their holidays in EU countries, then SMARTY will probably comfortably cover your needs. They offer roaming at no extra cost in all these EU countries.

That means you can use all your normal minutes, texts and data while you're away, without paying extra. Although if you're on SMARTY's unlimited plan, you can only use a frankly huge 19GB data per month.

One word of warning if you are joining SMARTY: follow these instructions to activate roaming in your account before you go away. It's set to "off" automatically, so you could end up abroad without a way of turning it on.

If you do want to travel outside Europe, it's still possible, you just don't get any inclusive roaming there like on Three. Instead, you have to top up with credit and then pay as you go at these rates.

Useful link:
Full roaming costs on SMARTY and other important info

✔ SMARTY will pay you back for unused data on some plans

If you've had a pay monthly plan before, you'll know the feeling that you've wasted money, when you don't use all the data that your monthly plan gives you. Normally it's just too bad. But SMARTY have a nice solution:

On their "Data Discount Plans", they'll pay you back what all your unused data cost to buy in the first place, via a discount on next month's plan. So if you have 2GB left and that cost £2, that's what they'll pay you back.

SMARTY's current data discount plans

Each of these plans pays you back £1 per GB of unused data each month:

SMARTY even calculate the cost down to the nearest MB (basically 1000th of 1GB), so you'll get back every penny and never overpay. We think this is the fairest such system in the UK today (better than data rollover).

This is SMARTY's main unique selling point. And is one of the advantages of joining SMARTY over Three, who don't offer anything like this on pay monthly or pay as you go.

Useful link:
SMARTY's help guide to the data discount

✔ SMARTY's plans have no credit check and no contract

All SMARTY's plans are paid for up front and last just one month. There's no contract - meaning if you get fed up, you don't have to give any notice, you just stop paying and your plan ends once your month's up.

You can't get that flexibility even on Three's 1-month SIM only contracts, where you still have to give 30 days' notice. Three's 1-month pay as you go Add-ons do work like SMARTY but are more expensive.

The other benefit of paying up front on SMARTY means that there's no credit check to join them (Three's pay monthly plans do need you to pass one). That's good if you have bad/no credit history or are new to the UK.

It's also impossible to spend more than your plan's basic cost, unless you top up with credit in advance. That helps you know what you're paying, although could be a chore if you have to top up to use a feature in a hurry.

Useful link:
How to manage your SMARTY plan

✔ Unlimited streaming data with Go Binge

If you like the idea of streaming as much video and music as you like without having to get an unlimited data plan, Three's Go Binge benefit is definitely worth a look.

On pay monthly plans with 12GB or more, you'll get a separate unlimited data allowance to stream these selected video and music apps including Netflix. Here's the current cheapest deal with Go Binge:

We think it's an excellent benefit that means you can start getting more out of your phone, without being conscious of data usage at all (read our full Go Binge review here). SMARTY have nothing similar.

Useful link:
Full Go Binge details and terms and conditions

✔ Three are among the least-complained-about networks

People complain to the telecoms regulator Ofcom, when a mobile network hasn't sorted their problem. So having a low number of Ofcom complaints, like Three, is a sign that they have effective customer services.

Per 100,000 pay monthly Three customers, Ofcom only receive 3 complaints, which is about the industry average. And is better than some of Three's competitors (SMARTY don't have enough customers to appear in this data).

There are loads of ways to contact Three if you have a problem. You can chat within their app, in your online account, or phone them. Also underrated is the ability to walk into a Three store on the high street.

If you're the sort of person who likes "to speak to a real person" when they've got a problem with a product, then Three definitely have more options than SMARTY.

Useful link:
All ways to get help on Three

✔ SMARTY's customer service is online-only

Here's another clear difference between SMARTY and Three. SMARTY are set up as a no-frills brand, which means they've cut costs by only offering online-based customer service.

They've got a pretty decent help section on their website with answers to common questions. But if that doesn't help, you'll need to use their online chat or social media messaging services.

They're open 7 days a week, 8AM to 8PM. But the pace of conversations with them can be quite slow, especially getting the first message through. They will email you if they can't immediately reply.

People who like the re-assurance of talking to someone on the phone, or even going in to a store to get face-to-face help, aren't going to like SMARTY if they ever need anything. Others will be content with online-only.

Useful link:
How to get help on SMARTY

✔ SMARTY's unlimited plan is on a short 1-month contract

The main advantage of SMARTY's unlimited data plan (ignoring price) over Three's is that it's on a flexible 1-month contract. It means you're free to change plan or leave at short notice if you decide it's not for you.

You're also allowed to use the SIM directly in a tablet or iPad for unlimited mobile broadband, as well as using it in your phone for tethering (personal hotspot) too.

The main limitation is on roaming. If you're within the EU, you can only use 19GB a month while you're out of the country. This is currently the same on Three too.

Otherwise the principle is essentially the same: even if you used your phone for every minute of the whole month, there'd still be no charges for going over any data limits.

Useful link:
Compare current prices

✔ Three's unlimited plans come with added benefits

On Three you can choose between a 1-month contract that will normally work out more expensive than SMARTY, or a longer 12-month or 24-month deal, which are more similar in price.

The main advantage other than any price variations of Three's deals over SMARTY is that you get a few extras like inclusive roaming in 71 countries (not just EU ones), where you can use 19GB data.

Three's current unlimited data SIM only deals

Here are all the pay monthly options to get unlimited data on your phone with Three:

Unlike SMARTY though, you can't put Three's phone unlimited data SIMs in a tablet (the network detects it and blocks it). You have to buy a specific tablet SIM to do this.

Useful link:
Compare latest prices

✔ Only Three currently offer smartphone contracts

We rate Three as an excellent place to take out a phone contract. You get everything we've talked about in our network and benefits sections above, and reasonable prices, especially with their hidden deals.

Three's phone contracts are straight-up 24-month deals - there's no financing like you get with some networks, which also means there's no real early upgrade offers either.

They've got all the iPhone and Samsung models you'd expect from a mobile network, and quite a few other Android handsets too. Use our price comparison tool below to see how Three compare for each model.

Until SMARTY start offering phone contracts, we can't really compare Three with them.

Useful link:
See Three's range of pay monthly phones

✔ Phone contracts on SMARTY could be coming down the line

Today, SMARTY are only set up as a SIM only provider. But this blog post suggests that they're working on offering phone contracts in the future.

We'd expect SMARTY's phone contracts to work a lot like Vodafone's sub-brand VOXI's, where you take out a separate agreement for the cost of your phone and your minutes, texts and data plan.

The advantage of this way of doing phone contracts is that you get flexibility from having a phone plan you can pay off more quickly or slowly. And it lets you upgrade early by paying off the phone in full.

The blog post originally said, SMARTY would be offering phone contracts in 2019. That now seems to be running late. But we'll update this section when anything changes.

Useful link:
Compare phone contracts from all networks

How to decide between Three and SMARTY mobile

For us, the key is working out what is important to you. Have a look at our summary a bit further down.

Use our deal finder above to look for deals with the number of mins, texts and data you want. Then see how the prices compare. It won't always be the case SMARTY are cheaper.

If Three are cheaper and you're happy with the contract length, you'll get a lot more extras with most their plans. But if the SMARTY benefits are more important then that's who to go with.

SMARTY are generally better for...

Three are generally better for...