It’s holiday season again - at least for parents and school-age children – so it’s time to pack your suitcase and go on vacation. Here we gather the best tips to save money making calls and using data abroad when on holiday or business, and list each carrier's roaming charges. [Updated June 30, 2015: Data roaming charges dropped in EU, details.]

If you’ve read scare stories of massive mobile data roaming charges – where naïve users have racked up thousands of pounds on their mobile bills just by browsing the internet or downloading a few files or email attachments – then you might be worried about taking your iPhone or Android smartphone abroad with you.

Also read: How to get cheap internet access abroad: roaming data and pre-paid SIM cards explained. Buy a pre-paid data SIM to save money on holiday.

Recent reports suggest that the average smartphone user gets through nearly 500MB of data a month. With data roaming charges of £7.50/MB outside Europe you can see how the bills can rapidly add up... Indeed nearly 40 percent of us turn off our phones when we go abroad, and a further 36 percent switching off data roaming.

(Roaming is the word used to describe using your mobile phone on another network for a short period, while still being billed by your existing provider. Your mobile phone number remains the same while roaming. When you are roaming on another network the temporary mobile phone company will bill your usual mobile phone company for calls you make while roaming on their network.)

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Data roaming prices have dropped 95 percent since 2010.

New EU roaming charges

Data roaming charges will be abolished within the European Union by June 2017. The ban is preceded by a 14-month interim period, in which telecoms operators can still add reduced surcharges.

From April 2016  companies will be able to add a surcharge of no more than:
• 3.5p (€0.05) extra per minute for calls
• €0.02 extra per SMS sent
• €0.05 extra per MB of data used

The cap should make EU roaming 75 percent cheaper during this interim period.

The agreement will be presented to the EU's member states between July and December this year for formal adoption.

Before then calling a UK landline or mobile from any EU country will now cost a maximum of 18p per minute. Receiving a call will cost 4.8p. Sending a text will cost 5p and data will be charged at 19.6p per MB. Previously calls cost 24p per minute, texts were 7p and data was a wallet-walloping 46p per MB.

But you still need to be careful to avoid bank-busting bills when taking your smartphone or 3G-enabled tablet abroad.

3 or Three or whatever it's calling itself these days is a carrier that has gone further than most in helping reduce its users roaming charges. Three’s customers travelling in the US will now automatically roam onto the networks of AT&T and T-Mobile USA, which, like most of the world, use the GSM network standard. Three offers the same 'Feel At Home' terms in these territories: Ireland, Australia, Italy, Austria, Hong Kong, Sweden, Denmark), Indonesia, Sri Lanka and Macau. On 25 August 2015 Three claimed its Feel At Home service had saved customers £1.3bn in roaming charges, saving each customer on average £330 per year.

Apple iPhone Apple Maps

Apple’s iPhone and the latest Android smartphones can’t be beaten for mobile Internet access. So here’s some advice for iPhone and Android users heading out on holiday or abroad for some other reason. Taking your smartphone abroad needn't cost the earth.

Your unlimited data and Wi-Fi allowances only apply to usage in the UK.

O2 phone roaming charges detailed here.

O2 currently charges 19.6p per MB within the EU, and £6 per MB outside the EU. Within the EU mobile calls cost 18p/minute. Before travelling to Europe check you have O2 Travel on your Pay & Go account, you can check this by calling customer services on 4445. For the days that you use data in Europe, you will be charged £1.99 for a daily allowance of 50MB, which will automatically end at midnight UK time or stop when you reach your 50MB allowance (whichever comes first). To use more data, you can text MORETRAVEL to 21300 to reset your allowance for another £1.99 / 50MB. If you don't have Pay & Go O2 Travel on your account text TRAVELON to 21300 to activate; it can take up to 24hrs to be applied to your account. To opt out of O2 Travel text TRAVELOFF to 21300, you will then be charged O2’s standard roaming rates. This can take up to 24hrs to be applied to your account.

Making calls in the US to UK costs £1.10/min, and receiving calls 90p/min. Sending texts is 40p per message. Data usage is capped to 50MB (£40) per month. O2’s Data Abroad Bolt On increases your standard data limit to 200MB for £120 per month. You can get the Bolt On through My O2.

Vodafone phone roaming charges detailed here.

Vodafone charges 19.8p per MB in the EU; for the rest of the world it's £3 for each MB up to 5MB, then £15 for every 5MB after that. With Vodafone EuroTraveller you can take your UK minutes, texts and data with you anywhere in its Europe Zone for £3 extra a day. To opt in call 5555 free from your Vodafone mobile or text ADD to 40506 (if you text from abroad, Vodafone will just charge you for a standard text).

You’re automatically opted into a monthly spend limit of £42.50 (ex VAT) both in its Europe Zone and Rest of World Zone. Outside of Europe  with the Vodafone WorldTraveller you can take your UK minutes, texts and data with you anywhere in its WorldTraveller Zone for £5 extra a day. To opt in, call 5555 free from your Vodafone mobile or text ADD to 40508. Be warned: a smartphone can eat 25MB of data pretty quickly. Making calls in the US to UK costs £1.35/min, and receiving calls £1/min. Sending texts is 35p per message.

Orange phone roaming charges detailed here.

Orange charges 19.8p per MB within the EU, but the highest rest-of-the-world rate is £8 per MB. Orange lets you add an EU 50MB Daily rate for £3 per day; or £5 for 100MB in the EU. Calling to Europe, Ireland & the Channel Islands and back to the UK costs 18.8p, and 4.9p to receive calls. Texts cost 5.9p to make, but are free to receive. You can get unlimited calls and texts while abroad in selected European countries for £2/day.

Making calls in the US to UK costs £1.20/min, and receiving calls £1.20/min. Sending texts is 50p per message. For the US Orange has a Zone A Roaming Data Bundle of 20MB for £3 per day; or £5 for 100MB.

3 (Three) phone roaming charges detailed here.

3 (Three) sadly isn't free. But it looks cheaper than the others in some countries as it charges just 10p per MB in France and the US. Mostly though it's near the now standard sub-20p rate at 19.8p in the EU, and £3 per MB outside the EU. Watch out though as prices fluctuate quite wildly according to its website. See Three's destination charges page.

3’s roaming charges really do depend on which country you’re in. France, for example, is a Feel At Home destination, which means you can use your device there at no extra cost. Calls and texts back to the UK and using data will come out of your existing Pay Monthly allowance, if you have one. If you've gone over your allowance, you'll pay special lower roaming rates. In France that’s 10p per MB. 3’s Feel At Home destinations include: Australia; Austria; Denmark; Finland; France; Hong Kong; Indonesia; Israel; Italy; Macau; New Zealand; Norway; Ireland; Spain; Sri Lanka; Sweden; Switzerland; and the USA. If you've gone over or don't have an allowance calling a UK number from the one of these destinations costs 13.8p/minute. Sending a text costs 4.3p but receiving is free.

With 3’s Euro Internet Pass Add-on you can get all-you-can-eat data for £5 a day. The Euro Internet Pass was designed for browsing, so streaming video or audio content and connecting over a Virtual Private Network (VPN) won't be as good as it is on 3’s UK network. Also, using your phone as a Personal Hotspot, calls and texts aren't included. Euro Internet Pass is only available if you've got a Pay Monthly contract and you can only use it in certain countries.

EE phone roaming charges detailed here.

Using your EE phone abroad: It's a little more complicated with EE. If you're on a 4GEE or T-Mobile plan you can't use your data abroad unless you buy an add-on or Booster. If you try to use the internet on your EE phone or tablet when you're abroad, you're directed to a screen where you can buy roaming data add-ons. With EE you have to buy a roaming add-on before you can use the internet while you're away. EE has so many roaming add-on options it's confusing. A Euro Data Roaming Add-On costs £3 for 50MB, £5 for 100MB, £12 for 200MB and £25 for 500MB. It all depends on where you are, with EE. If you're in Japan an add-on costs £60 for 50MB. A paltry 10MB costs £12.

As you can see web browsing for a few hours a day over the course of a week could cost you dear - especially outside the EU on EE.

(Included EU countries are: Andorra, Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands,'French Guyana, , Finland, France, Germany, Gibraltar, Greece, Guadeloupe, Guernsey, Hungary, Ireland, Iceland, Italy, Isle of Man, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Martinique, Monaco, Netherlands, Norway, Romania, Poland, Portugal, San Marino, Slovakia, Slovenia, Spain, Sweden and Switzerland.)

Picture messages

Opening an email that includes a picture taken by a 5-megapixel camera or downloading a three-minute video from YouTube takes about 2MB of data. Vodafone stimates that 20 mobile-friendly web pages uses about 1MB – but remember that the majority of websites are not mobile friendly. Check the links above for carrier picture message costs.

Data roaming charges UK abroad carriers

Top 10 Tips for avoiding data roaming charges abroad

Tip 1: Use Wi-Fi

This one's the first tip for a good reason. Where possible only browse or download when using your Apple iPhone’s or Android phone's Wi-Fi connection. Users are not billed for data downloaded over Wi-Fi. The only charge might be if a particular Wi-Fi hotspot charges for access, and you should be informed of that before you can start using the connection.

Tip 2: Mind your email

It’s OK to check your email, as attachments aren’t downloaded until you tell the phone to do so by selecting that attachment. That said, the text in the email is downloaded, so long lists of messages may indeed start to cost more than you’d expect. If you can, think about Tip 1 again, and check email when you're connected to Wi-Fi whenever possible.

Tip 3: Check your settings

Don't panic. Apple has made things easier for you. Keen to ensure that its iPhone customers do not unintentionally incur data costs, Apple switches off data roaming as a default. This means that none of the iPhone applications that use data (maps, email, web browser, etc) will use a data connection while abroad. The user needs to consciously switch this on and is warned at that point that costs may be incurred.

iPhone data roaming settings changes

It’s definitely worth checking this has happened, though. Go to Settings – General – Network – Data Roaming – make sure the button is switched to 'Off'.

Android phone users should disable data roaming at Settings>Mobile Networks.

Android disable roaming

Android users should go to Settings>Data usage, and tap on the three dots on the top-right of the screen, then  select "Restrict background data". Apps that you aren't currently using will not be allowed to use any data.

Android restrict data usage

You also don’t want your apps to automatically update while you're using mobile data abroad. They should update only when you're connected to a Wi-Fi network, but go to the Play Store app to ensure that the Auto-update apps setting is set to Wi-Fi only.

Android update apps over Wi-Fi only

For iPhones, under Settings>mobile, there’s a terrifyingly long list of all the apps on your phone – many of which can be secret data drainers. Here you can individually disable apps from using mobile data. Any app that can generate notifications might be downloading data in the background – look out for email and messaging apps in particular. As with Android you can stop apps from updating while you're not connected to Wi-Fi. Go to Settings>iTunes & App Store to switch off the "Use mobile data" option.

Tip 4: Get a data bundle

You may be able to sign up to a flat-rate or capped data package (aka Bolt On or Add On), where you pay a fixed amount each month for using the mobile internet. Contact your network operator to find out what they offer. These can be hard to get your head around. make sure to check they work for your travel destination. Also see the rates listed above.

Tip 5: Go to mobile-friendly websites only

An increasing number of websites now have specific sites where their pages are specially optimised for mobile phone, thus making them lighter on the megabytes. PC Advisor is now responsive, which means it adapts to fit whichever device you're using. Others that include their own mobile site are BBC News Mobile and The Guardian Mobile.

Most mobile websites have a very similar address to the desktop (or 'fat') site. Try replacing the 'www' with 'm' or 'mobile'; or replace the '.co.uk' or '.com' with '.mobi', as with Microsoft's mobile site.

Data roaming mobile Sim cards abroad

Tip 6: Switch SIM card

Another way to avoid high roaming charges is to switch your SIM cards.

UK company Dataroam has a range of pay-as-you-go and 30-day plans that it claims could save users “up to 90 percent” on international roaming charges, with pre-paid data SIMs starting at £19.99.

But first the smartphone needs to be “unlocked” from its home network.

(Most UK phone networks lock their handsets to prevent consumers using alternative SIMs, and so force people to pay their high rates.)
You can ask your network carrier to unlock your phone, but this isn’t always an easy request, as you might have guessed.

Alternatively there are plenty of small local independent mobile phone stores and online unlocking specialists who can unlock your phone for you.
Unlocking your smartphone shouldn’t cause any problems either in the UK or abroad.

Data roaming Mifi dongle shared wi-fi

Tip 7: Set up a MiFi

If a phone can’t be unlocked you could create your own personal (secure and fast) WiFi hotspot with a MiFi device, which will allow you to run up to five WiFi-enabled devices from that point – ideal for group or family trips abroad.

A Mifi is a wireless modem that emits a Wi-Fi signal that devices can connect to, ensuring access to the web for more than one person.

Dataroam sells a Mifi for £89.99 that uses one of the company’s data SIMs that work out much cheaper than standard network rates abroad. Set up the Mifi as a wireless hotspot, tell your friends/family the password, and you’re up and running.

Mobile wifi and mifi deals

Roaming onavu data compression app

Tip 8: Compress data

There’s an app for that, right? Correct. The Onavo Extend iPhone app (there’s also an Android Onavo app) promises to give you the ability to do up to five times more with your current data plan without additional fees.

Onavo Extend also provides a breakdown of your mobile data usage, showing you how much data is being consumed by each app and so allowing you to make better informed data usage choices. Onavo Extend compresses your data so that you can do more with your mobile device. It also reduces roaming charges by providing a leaner version of the web.

Offline map apps abroad data roaming savings

Tip 9: Download maps offline

When you’re away from home you actually need data more than you do normally, so the high data charges are doubly frustrating. Step off the plane/train/automobile and the first thing we want/need to do is fire up maps and GPS on our smartphones.

The trick is to download city or area maps before you leave home (you know where you’re going, right?) or do so when you get to your hotel wi-fi. You can now do this via a secret feature in the latest Google Maps app (make sure it's the most up to date); see How to save Google Maps offline - download maps for travel abroad.

iPhone users should consider Skobbler’s ForeverMap app, which gives you access to OpenStreetMap maps for almost all of Europe, installable/uninstallable maps for countries, states and cities and routes for pedestrians and cars, as well as an offline search for locations. Non-European destinations are in the works. Another great offline map app is Cities Maps 2Go, which has a bunch of free-to-download intercative maps from right across the globe.

Android users benefit from Google’s own Google Maps service. They can pre-download maps covering a 10-mile radius. Android users need to enable the "Download map area" feature via the Labs tab in the Google Maps app.

Check that any travel-guide apps – for example, Lonely Planet, Rough Guide, DK Eyewitness, and Time Out guides – you’ve downloaded include offline maps.

Tip 10: Relax

Unless it's a busy business trip, just switch your iPhone or smartphone off for a while. Do you really need to check email morning, noon and night, access Facebook, look at Twitter, check the football scores? (OK, you probably need to check the football scores...)

EU data limits

O2 EU data limit    

Vodafone EU data limit   

Orange EU data limit

Three EU data limit

O2 says that a default £40 limit will be built into all tariffs. Customers will receive a text when they start to use data abroad to let them know they will not be charged more than £40. There is a bar set at 50MB. Once this has been reached data roaming will stop.O2 also offers an Opt Out where customers who do not want a cap on their data usagejust need to call customer services and ask for the cap to be removed.Data roaming charges for all the above options remain at: £3/MB (EU) and £6/MB (Rest of the World).

Orange Pay Monthly customers will be alerted by SMS when they have used 8MB of data, and again when they are approaching their 16MB allowance. Orange Pay As You Go customers will be alerted when they have used 6MB of data and again when they are approaching their 12MB allowance.

Three will send customers texts to let them know when they've reached 80 percent and 95 percent of its £43 limit.

The data limit is applicable in EU countries only, and can be removed by calling your mobile carrier.

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See also: How to protect your iPhone from Theft

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