Cookies on the SIM Sherpa website

We use cookies to track which pages on our website readers visit most. This helps us understand which topics people find interesting, to write more articles about them.

You can accept these tracking cookies or choose to block them. You can change these settings at any time.

X close

✖ Tracking cookies deleted and blocked

Ok, we will not track your page views as you move around any part of the SIM Sherpa website. But we will use that one cookie to remember you don't want to be tracked.

Click here to unblock tracking cookies

X close

✔ Cookies accepted

Thank you for accepting cookies for the SIM Sherpa website. This will help us constantly improve our content.

If you ever want to change your cookie settings for our website, go to our Cookies page here.

Various logos of UK mobile networks

VOXI vs Vodafone: the differences we found between the two networks

VOXI and Vodafone logos

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

We test the coverage, 4G speeds and other benefits you get with a VOXI SIM vs what you get if you join Vodafone directly. SIM Sherpa is your trusty guide. Last updated: 3rd July 2019.

In our VOXI vs Vodafone guide

Offer notifications

Vodafone's 18‑month data boost deals

Vodafone 4x data 4GB SIM

Vodafone have already launched 2x Black Friday deals including:

1GB 4GB of 5G data for £11 a month (18‑month deal)

5GB 10GB of 5G data for £15 a month (18‑month deal)

See all SIM only plans (opens in new tab)

VOXI's data boost offer

VOXI's data boost offer

Get boosted data on VOXI's 6GB 8GB and 15GB 20GB plans when you order by 2nd December.

Or get their brand-new 5G unlimited data plan for £30.

Useful link: See data boost offers

Vodafone vs VOXI's network

Same: identical coverage on VOXI and Vodafone

We test how many bars with each provider in a few locations

Vodafone vs VOXI signal

We’re confident there’s no difference in 4G/3G/2G coverage

VOXI logo
Vodafone logo
99%
99%

Vodafone bring 4G to 99% of the population in the places where we live. And VOXI use the same network, so should be the same. We tested a Vodafone SIM vs VOXI to check.

Our tests on identical phones found that the number of bars was almost always identical. There were some fluctuations as the conditions change constantly outside.

But overall there was no advantage or disadvantage between the Vodafone and VOXI SIMs. And we found their coverage maps to be accurate too (check your Vodafone/VOXI signal here).

VOXI and Vodafone network maps

Check signal everywhere you'll use your phone, not just at home

VOXI's map

VOXI coverage map

Check VOXI signal

using their official map
(opens in new window)

Vodafone's map

Vodafone coverage map

Check Vodafone signal

using their official map
(opens in new window)

Our verdict on coverage:

Draw

"As expected, we found coverage on VOXI to be identical to that on Vodafone. It didn’t ever seem to be an inferior experience. So signal differences needn’t be something to influence a choice between them"

Compare pricing and deals

Same: 4G download speeds

We do some speed tests on our VOXI and Vodafone SIMs

VOXI and Vodafone logos with a speedometer

We'd expect 4G download speeds to average at 21 Mbps

VOXI logo
Vodafone logo
8.1 - 54 Mbps
4.5 - 54 Mbps

We took a VOXI SIM and a Vodafone SIM out to do some spot checks on 4G download speeds in identical phones, to see if there's any noticeable difference between them.

The slowest we measured on Vodafone was 4.5 Mbps and on VOXI it was 8.1 Mbps. The fastest we found was a short peak at 54 Mbps on each over a city-centre 4G+ connection.

Generally our spot checks found downloads out of town to average between 8 - 20 Mbps. And in cities between 20 - 40 Mbps. The lower end of speeds will still support standard definition videos without buffering.

Between Vodafone vs VOXI, we don't think there's a built-in speed difference. Although we did frequently observe VOXI to be 4 Mbps or so faster than Vodafone, we doubt this would be a consistent difference.

We expect 5G only to be available on Vodafone at first

Vodafone 5G rollout

Vodafone's 5G is being rolled outSee 5G rollout plans

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

Even though Vodafone own VOXI, we don’t expect them to launch 5G at the same time (you can read Vodafone’s latest news on 5G here).

Our experience from when 4G launched was that the main networks held onto it for a while before allowing the “virtual networks” like VOXI to sell it too.

This is basically a commercial decision. 5G is expensive to build, so the main networks are likely to sell it as a premium option - and be reluctant to let cheaper providers undercut them at first.

If you're really keen on getting 5G when it comes out, there's nothing stopping you taking a 1-month plan from VOXI and then jumping ship to Vodafone if they have it and VOXI don't.

Useful link: Latest on Vodafone's 5G rollout

Our verdict on download speeds:

No difference

"Once Vodafone launch 5G fully, this will probably change but only if your phone is 5G-ready though. For now, we saw no speed difference between VOXI and Vodafone directly. There's currently no speed disadvantage between either."

Compare pricing and deals

Different: extra network features

We compare Vodafone vs VOXI's other technology to improve signal

Vodafone and VOXI logos and some cogs

Vodafone have WiFi calling and 4G calling, VOXI don’t

Vodafone's WiFi calling scheme

See supported phones

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

If you’ve ever struggled with poor indoor signal for calls, it’s worth looking at providers with WiFi calling and 4G calling technologies that can help overcome the problem.

Vodafone have both (but check your phone is supported up front here) on their regular plans. Their no-frills Basics Plans don’t include it. VOXI don’t have either technology on any plan.

The technology works by letting your phone connect to WiFi or a 4G data signal to make/take calls, instead of regular 2G / 3G mobile signal, which can struggle to get indoors.

We don't rate Vodafone's WiFi calling as the very best scheme on the market, because it doesn't support SMS text messages too, which can be handy for receiving verification codes for banking and other apps.

Useful link: FAQs about Vodafone's WiFi calling

Vodafone also offer some limited WiFi hotspots

Vodafone free WiFi on the Underground

How you connect

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

If you’re a regular in London, you’ll know some mobile networks offer free WiFi on the Underground and Overground networks: helpful when there’s no phone signal below ground.

Vodafone are one of those providers (here’s how to get free WiFi on the underground if you join Vodafone). VOXI aren’t one of them.

It’s a point of difference between joining Vodafone directly or VOXI. So you’ll need to decide how important it is. Or whether VOXI’s cheap prices mean you’re happy to ditch it.

Useful link: Full details on Vodafone's free WiFi scheme

Our verdict on extra network features:

Clear win for Vodafone

"Vodafone have cleverly built in a few differences here between themselves and VOXI, so that if you value WiFi/4G calling and free hotspots, you’ll need to pay their higher prices rather than join on a cheaper VOXI deal"

Compare pricing and deals

Vodafone vs VOXI's benefits

Different: inclusive roaming

Is roaming better on VOXI or Vodafone?

VOXI and Vodafone logos with a globe

Certain Vodafone plans come with worldwide roaming destinations

Vodafone Global Roaming

All roaming costs

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

As a bare minimum on any Vodafone plan (apart from no-frills Basics ones), you’ll get inclusive roaming in any of the EU countries listed here. Use your regular UK allowances without paying extra.

What's good about Vodafone's roaming is that they're aren't any limits on the speed (it's 4G wherever available) or the amount of data you can use (use your full monthly allowance).

And if you pick one of Vodafone’s more expensive Red Entertainment plans (available on 12-month SIM only contracts and phone deals), you’ll get inclusive roaming outside Europe too:

Their current list spans 77 destinations in total, including popular long-haul holiday spots like the USA, Canada and Australia. This isn't something VOXI offer.

Useful link: Know all costs before you go abroad

VOXI’s inclusive roaming is limited to the EU

Roaming on VOXI

Latest free countries

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

Where Vodafone have premium worldwide roaming options, VOXI stick to the standard free EU roaming that every network now has to offer if they allow roaming at all.

A nice touch with VOXI though is that you can take their Endless Social Media Data benefit with you in the EU. So you've got unlimited data for selected apps while you're away.

If you take your VOXI SIM outside the EU, you'll pay for usage per minute, text and MB at different rates depending where you (see charges per country here). You'll need to add credit to your account for this to work.

Whether EU-only inclusive roaming is a problem for you or not will obviously depend where you go on holiday.

Useful link: Full costs and charges when roaming on VOXI

Our verdict on roaming:

A win for Vodafone

"It’s a case of pay more to get more on Vodafone. Or pay less to get less on VOXI. If you only ever go to Europe, VOXI is fine. If you’re a frequent long-haul jetsetter, roaming charge savings on Vodafone could offset the higher cost of the plan."

Compare pricing and deals

Different: other added benefits

Are Vodafone or VOXI's extra perks better?

VOXI and Vodafone logo's with a gift box

All VOXI plans come with unlimited social media data

VOXI Endless social data

How it works

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

The real edge that VOXI have over Vodafone other than pricing is their Endless Social Media benefit that we rate as the best free social media data scheme in the UK.

On every VOXI plan (SIM and phone), you effectively have an unlimited data allowance to use particular social media apps (see full list here) on your phone, without it coming out of you regular monthly data allowance.

Basic messaging and mainly text-based feeds like Twitter don't use that much data anyway. But image and video based content within those apps (as long as you don't leave the app) will bring decent data savings.

If you want unlimited streaming of video and music like you get with Three's Go Binge for instance, you can pay for a monthly pass on VOXI to get this on a huge range of apps (see latest costs and providers here).

Useful link: VOXI's full guide to Endless social data

Some Vodafone plans include an entertainment subscription

Vodafone entertainment subscriptions

Pick a subscription

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

Vodafone don't have any free data schemes like VOXI. But if you take one of their more-expensive Red Entertainment plans on a phone contract or SIM only deal, you'll get a subscription included.

The current choices are between Sky Sports Mobile TV (sport streaming), Spotify Premium (music streaming), Amazon Prime Video (films and TV) or a Now TV Entertainment Pass (TV).

You can pick one of the services, which will be added to your account for the duration of your contract at no extra cost. If you use the services on your mobile, it will use your data.

We'd also point out that the higher basic cost of the plan does mean you're likely to be paying a premium for the service. So it's not strictly a freebie.

Useful link: Full offer details and terms

Our verdict on extras:

A win for VOXI

"We suspect more people will benefit from VOXI's free social media data, because it comes as standard and is something people use a lot on their phones. Vodafone's subscriptions are basically a paid-for feature."

Compare pricing and deals

VOXI vs Vodafone's deals

SIM only deals

Are VOXI or Vodafone's SIM only plans cheaper?

VOXI and Vodafone logos and a SIM card

Choose what you want in your deal:

Deal options >
Choose mins, texts and data >
Choose data speed (4G or 5G) >
Choose max contract length >

Close options

Minutes

Texts

Data

Done

Minimum data speed

Any
4G
5G
Done

Maximum contract length

Any
1 month
12 months
Done

Close filters

Choose which networks you'd consider:

Three logo
BT Mobile logo
EE logo
giffgaff logo
ID logo
O2 logo
Plusnet logo
Sky logo
SMARTY logo
Tesco logo
Virgin Mobile logo
Vodafone logo
VOXI logo
Showing SIM only deals with at least
 mins |  texts |  data on 4G or 5Gedit search
( possibilities) on any length contract.

minutes
+
texts
+
G data
=
£ a month
on a -month contract
Features: Point1 | Point2 | Point3
(opens in new tab)

minutes
+
texts
+
G data
=
£ a month
on a -month contract
Features: Point1 | Point2 | Point3
(opens in new tab)

minutes
+
texts
+
G data
=
£ a month
on a -month contract
Features: Point1 | Point2 | Point3
(opens in new tab)

minutes
+
texts
+
G data
=
£ a month
on a -month contract
Features: Point1 | Point2 | Point3
(opens in new tab)

minutes
+
texts
+
G data
=
£ a month
on a -month contract
Features: Point1 | Point2 | Point3
(opens in new tab)
Want more results?
Use these filters to make your search more specific
minutes
texts
data
on G
£ a month
on a month contract
minutes
texts
data
on G
£ a month
on a month contract
minutes
texts
100MB data
on G
£ a month
on a month contract
minutes
texts
100MB data
on G
£ a month
on a month contract
minutes
texts
100MB data
on G
£ a month
on a month contract
minutes
texts
data
on G
£ a month
on a month contract

Our verdict on SIM only plans:

Win for VOXI

"SIM only plans are almost as a rule always better value per GB on VOXI than Vodafone. And they're way more flexible too, being on short 1-month deals with no credit checks. This is a really easy decision for us."

Compare pricing and deals

Special offers

Current offers compared on VOXI and Vodafone

VOXI and Vodafone logos with a percent discount sticker

VOXI's data boosts and new unlimited data plan

VOXI's best value SIM

See the plans

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

Get extra data for no extra cost on two of VOXI's SIM only plans when you order by 2nd December:

VOXI have also just launched a new 5G unlimited data SIM only on 1-month plan for £30 a month (see Endless Data details on this page here).

Useful link: All other VOXI deals

18‑month data boost deals on Vodafone

Vodafone 4x data 4GB SIM

See data boost plans

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

Vodafone already have two Black Friday offers live, which are scheduled to last until Cyber Monday (2nd December). Both are data boost offers on their 18‑month contracts:

To get 5G 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 new everything unlimited plans have also been very popular, and they're available on Vodafone's phone contracts too (see the models here on their website).

Useful link: Vodafone's 5G rollout latest

Phone contracts on Vodafone vs VOXI

Are you better off joining VOXI or Vodafone on a smartphone deal?

Vodafone and VOXI logos and a phone

VOXI's phone contracts are way more flexible

VOXI's pay monthly phone

See full range

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

Phone contracts on VOXI are on split contracts - where you have a finance arrangement to cover the cost of the phone (via Paypal Credit) and a separate monthly mobile plan (basically a VOXI SIM only).

You pay off the phone over 30 months. But you can choose to reduce the length of the agreement by paying it off in larger chunks if you want. The SIM plan can be cancelled after 30 days or changed whenever.

You can see that doing mobile deals this way means more flexibility. It also means that networks with this type of contract can offer lower prices overall (we'd say VOXI will be cheaper than Vodafone 99% of the time).

The one downside can be that joining on this type may be more difficult than conventional mobile contracts if you have any blip in your credit history, or have no credit history. It's a financial product and so the requirements may be tighter.

Useful link: VOXI's FAQs about their phone contracts

Vodafone's phone deals are on conventional mobile contracts

Vodafone phone range

See full range

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

Compared to VOXI, Vodafone's contracts are much less flexible. They're on conventional 24-month deals, where you pay for the phone and usage on the same plan.

That means there's none of the flexibility to leave early or upgrade sooner that you get on VOXI. It also means that Vodafone's phone contracts tend to be more expensive and have upfront costs.

One tip if you're looking to join Vodafone on a phone contract would be to take a look at retailers like Carphone Warehouse and Mobiles.co.uk, who will usually be able to beat Vodafone's prices directly.

They purchase a lot more phones than Vodafone, so can offer better prices on handset deals. And you'll get many of the same tariff benefits you'd get by going direct.

Useful link: Carphone Warehouse vs going direct

Choose a manufacturer

Which make of phone do you want?

Find a plan for your phone

Choose what you want from your deal

Deal options >
Mins, texts and data >
Data speed (3G or 4G) >
Max contract length >
Max upfront cost >

Close options

Minutes

0+

Texts

0+

Data

0MB+

Done

Maximum contract length

Any
12 months
24 months
Done

Upfront cost

Any upfront cost

Done

Close filters

Choose which networks you'd consider:

Three logo
BT Mobile logo
EE logo
giffgaff logo
ID logo
O2 logo
Sky logo
Tesco logo
Virgin Mobile logo
Vodafone logo

Our verdict on phone contracts:

Win for VOXI

"Even though VOXI's contracts are 6 months longer than Vodafone's our price checks calculated them to be cheaper in total than all but a few Vodafone special offers."

Compare pricing and deals

More VOXI articles

Full VOXI review

VOXI logo and a thumbs up

More Vodafone articles

Full Vodafone review

Vodafone logo and a thumbs up

Vodafone's Basics SIMs

Vodafone logo and a SIM card

SIM Sherpa can help you find your next SIM only deal

network logos