The flagship HTC One X smartphone will soon be arriving in the UK with its 1.5GHz quad-core processor and 4.7in HD screen, and as the phone is now available for pre-order, IBTimes UK has compiled a complete buyers' guide to help you find the best deal.

HTC One X

The HTC One X goes on sale in early April and is currently available for pre-oder at a number of different sites, including Amazon, Expansys and Clove with prices ranging between £490 and £499 for the SIM-free phone with 32GB, putting it on a par with the market-leading iPhone 4S which costs £599 for the 32GB model.

Although nearly always the cheapest way buy to a smartphone, stumping up nearly £500 and buying one outright isn't for everyone, luckily there are plenty of tariffs for the One X with a ragne of offers which should suit everyone.

HTC One X on Vodafone

The HTC One X is available for free from Vodafone on 24-month contracts costing £41.24 and above; for that you get 900 minutes, unlimited texts and 1GB of mobile data, along with 2GB of BT Openzone Wi-Fi access per month. Over the lifetime of the contract this amounts to £989.76 - though you will own the phone outright at that stage.

The cheapest monthly plan from Vodafone is £26, which gets you 100 minutes, 500 texts, 250MB of mobile data and 2GB of Openzone Wi-Fi, but you'll need to pay £299 up front, which we think is a lot and over 24 months will cost you a grand total of £923 over the lifetime of the contract. It's also worth noting that almost every smartphone user would chew through that small data allowance in no time.

At the other end of the scale Vodafone offers a £62-a-month contract with 3,000 minutes, unlimited texts and 1GB of data - plus 2GB of Openzone Wi-Fi use and a further 25MB per day in select European countries. The One X is free on this tariff but for more than £60 a month we'd like to see more than 1GB of data allowance with this plan setting you back £1,488.

HTC One X on Three

The HTC One X can be had for free on all Three deals costing £32 or more per month - a substantially lower entry price point than with Vodafone, and while the data allowance is the same at 250MB per month, Three includes 500 minutes and 5,000 texts with its £32 deal. This adds up to a total of £768 for the 24-month contract, which is a lot more that the £500 SIM-free price, but a lot less that the £900+ price of Vodafone's cheapest plan.

The cheapest monthly plan from Three comes in at £27-a-month and offers 100 minutes, 5,000 texts - text allowance is standard across all Three contracts - and 250MB of data. On this entry-level plan the One X costs £99. Overall this is even cheaper than Three's £32-a-month plan costing you £747 over two years.

We don't think 250MB of data is enough for most users - especially when you've got a data-hungry One X chewing through maps, songs, videos and more - but thankfully Three offers several unlimited data plans.

The first offers Three's well-known "all-you-can-eat data", 500 minutes and 5,000 texts for £35 a month, but for £1 a month more you can bump the number of minutes up to 1,000. The One X is free on both plans with these plans setting you back £840 and £864 respectively over two years.

Finally, at the top of the Three tree is The One Plan, offering unlimited data, 2,000 any-network minutes, a further 5,000 Three-to-Three minutes and 5,000 texts, all for £38-a-month with the HTC One costing you nothing initially. For big phone users this could be an attractive offer though it will set you back £912 over 24 months.

As with Vodafone, all of Three's contracts are 24 months long.

HTC One X on Orange:

Orange is set to offer a wide range of tariffs for the One X and it can be had for free from £36-a-month (£864 over two years). This includes 600 minutes, unlimited texts and 1GB of mobile.

For those who spend less time tweeting to friends and more time actually calling them, Orange also offers a deal with 900 minutes, unlimited texts and a reduced 250MB of data for the same £36.

Combining the two into a package with 900 minutes, unlimited texts and 1GB of data will set you back £41-a-month and, again, includes the HTC One X for free - adding up to a total of £984 over two years.

For £46-a-month Orange provides a deal with 1,200 minutes, unlimited texts and 2GB of data, and a free phone - which works out at £1,104 over 24 months.

Finally, for those who don't mind paying a bit for the phone to get a cheaper monthly bill, Orange has a contract for £36-a-month which includes 600 minutes, unlimited texts and 750MB of data, while the phone sets you back £79.99 - a total of £944.

HTC One X on O2

O2 offers the HTC One X for free from £36-a-month, but while this includes 900 minutes and unlimited texts, any data allowance is subject to a £6 add-on, which provides 1GB of usage per month, taking the cost up to £42-a-month or £1,008 over the contract's lifetime.

As a compromise, O2 also offers the One X for free on a £31-a-month contract (plus £6 add-on) offering 600 minutes, unlimited texts and 1GB of data a total of £888 over two years.

If you don't mind paying £119.99 for the One X, O2 has a £26-a-month contract (plus £6 add-on for data) with 600 minutes, an additional 500 O2-to-O2 minutes, unlimited texts and 500MB of data which also adds up to £888 after two years.

Finally, O2 will offer you 100 minutes, 500 texts and 1GB of data for £25.50 per month but with this contract the HTC One X will set you back a hefty £239.99 up front which adds up to £852.

HTC One X on T-Mobile

The HTC One X can, according to MobilePhonesDirect, be had from £31-a-month on T-Mobile, which gives you 300 minutes, unlimited texts, 1.5GB of data and the phone itself is free. This is a total of £744, which is good value considering the high data allowance.

Alternatively, you can have double the minutes (600) but half the data (750MB) for the same price of £31-a-month and a free phone, or 900 minutes and 250MB of data per month, depending on your preference of increased data or minutes. We like this flexibility, which puts the customer in charge.

For those who want everything, T-Mobile offers the much-publicised Full Monty plan, offering 2,000 minutes, unlimited texts and unlimited mobile data for £36-a-month - as with before, the HTC One X is free and it adds up to £864 over two years.

Overall there seems to be some good deals to be had out there and if you don't want to stump up the whole £500 straight away. In pure financial terms buying the phone outright and getting a cheap monthly deal from the likes of Giff Gaff for as little as £10-a-month might seem like the best option, but in fact Three's offer costs just a few pountds more over two years, and won't need you to stump up £500 straight away.

The HTC One X is tipped to be released in the UK on 5 April and you can pre-order now.

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