Technology Category Archive

How to choose the right iPhone 4S for you

23 Replies WhatContract

Buying an iPhone 4S is more complex than brain surgery! There’s a mind boggling 6 options to choose from if you count the black and white colour variants. Next you’ve got to make the dare devil decision as to how much memory you’ll need (or rather how much memory you can afford!).

A brain showing the decisions that need to be made when choosing a new phoneAfter all that it’s a question of whether you buy SIM free, pay as you go or on contract. Choose to get the iPhone 4S on contract and you’ll walk into yet another wall of confusion.”Help!” you say! If you’re thinking of getting your paws on Apple’s latest must-have, then the following guide should point you in the right direction.

It don’t matter if you’re black or white!

There’s no difference whatsoever between the white and the black iPhone 4S. The white option is slightly more prone to finger marks as the black is to dust gathering. Whether you choose virgin white or classic black is down to taste. For whatever reason, the white iPhone 4S does sell on eBay for a touch over what the black fetches – so if you’re concerned about re-sale value, white is right for you.

Don’t forget your memory!

The difference in price between the 16GB and 64GB versions is around £200, so you best think carefully about how much storage you’ll actually need. With the A5 chip from the iPad on board, the iPhone 4S is capable of delivering a gaming experience like never before, but as such we can expect the games themselves to grow in size considerably (the current version of FIFA 12 for the iPhone is already more than 1.5GB). Download more than 10 games of this size and you can kiss your 16GB goodbye (let alone any music, films, pictures, videos and email attachments you want to store on your device).

Own an iPhone already? Check to see how many MB’s you’ve munched and then add 15% on top – if this adds up to more than 16GB, splash out the extra and go for 32GB option. On the hole, the 64GB monster should be reserved for the rich or super-geeky – but if you’re not the one stumping up the cash, then why not?

SIM free, Pay As You Go, or Contract?

OK, so as you might expect, there’s no definitive right answer here. There’s plenty of reasons that you might choose any of these options – it’s just a case of figuring out which is best for you.

A SIM free iPhone 4S will suit those who don’t want to be ‘tied in’ to a particular network. Perhaps you move regularly between two locations where signal is only available on a certain network, or maybe you’re moving abroad imminently.

Choosing Pay As You go for regular use will always work out more expensive than contracts, but if you want total control over your bills it’s worth investigating further. Remember that if you buy the iPhone 4S on Pay As You Go, it’ll be locked to the network that you bought it with.

Although SIM free deals are marginally more expensive than Pay As You Go, if you’re planning on switching networks, unlocking your iPhone 4S might be more hassle than finding an extra tenner for the SIM free option.

If you make a lot of calls (by a lot I mean more than 300 minutes worth per month) an iPhone 4S contract will work out far cheaper than Pay As You Go, plus you won’t have the hassle of ‘topping up’ regularly.

Another advantage of choosing an iPhone 4S on contract is the inclusive data. Unless you’re going to be using your 4S for phone calls alone, it’s likely you’ll need to connect to the internet. Email, apps, social media and of course web browsing will all use ‘cellular data’. Most contracts will come with a monthly data allowance of between 250MB and 1GB (stay away from contracts that don’t!).

Finding the best iPhone 4S contract for you

Finding the most suitable contract is largely a case of matching what you’ll use with what’s on offer, then finding the best price. If you’e already on contract then finding out how many minutes, texts and how much data your using is simple. Just give your network a call and ask!

Most of the UK networks now have login areas of their websites where you can view your latest bills. Take a look at your usage from the past 3 months and note down how many minutes of calls you’ve made, how many texts you’ve sent and the number of MB’s you’ve downloaded.

Now you know roughly what you’ll use in a month, the quickest way to find the best iPhone 4S deals is to compare contracts using a specialist mobile phone contract comparison site. These sites make it really easy to pick and choose your options and see all the tariffs available without the need to visit every network’s website. Buying your iPhone 4S online also means you avoid commission thirsty ‘assistants’ you seem to find in every high street mobile phone shop.

When you make your contract comparison, you’ll notice that the shorter the tariff length, the more expensive the monthly cost tends to be. 12 month contracts are the most expensive and although networks must offer 1 year deals by law, they more than make up for it with excessive monthly charges. Most will find that a 24 month contract works out cheapest with 18 month tariffs falling somewhere in between.

So that’s about it! I hope you enjoyed my first post on Technology Bloggers, please comment below and I’ll do my best to answer questions.

See Anyone You Know? Face Recognition Comes Of Age

12 Replies Jonny Hankins

The National Academy of Sciences are about to publish an article in their proceedings entitled ‘Privacy In The Age Of Augmented Reality’, co-authored by Alessandro Acquisiti, Ralph Gross and Fred Stuzman. It is about developments in face recognition software.
How 2D facial scanners record identitiesTo use the authors’ words the document

“investigate(s) the feasibility of combining publicly available Web 2.0 data with off-the-shelf face recognition software for the purpose of large-scale, automated individual re-identification.”

They are also working on an app that can do it all from your phone! See the FAQ section here for more information. The article reports a series of experiments conducted over the last year or so during which the researchers try to identify a person from their photo using an over the counter face recognition software using information that is freely available over the internet.

The results are interesting. The experiments are as follows:
Students walking through the university campus were asked if their photo could be taken and to complete a questionnaire. As they were answering the questions the computation task was carried out, looking for a picture match on Facebook and requiring only seconds. In this case more than 30% of the students were immediately traced.

Because the faces were the same but the photos taken from different angles, humans had to decide which of the possible matches were the most appropriate, but that is not always the case. Some photos are replicated and therefore the computer can give a 100% guarantee that the match is correct.

For example in another experiment the researchers used an online dating agency that provided anonymous photos. In this case they could match names to the photos in about 10% of cases. In several cases the same photo had been used on different sites.

In a third experiment the knowledge gained was used to search for further private information, all freely available on the web, such as details of sexual preference, date and place of birth and this information even allowed them to generate the first five figures of the individual’s US social security number.

So it seems that we can draw a simple conclusion here, either now or in the very near future, as these technologies are improved and made freely available, anybody will be able to recognize anybody they see on the street, identify them through an app in their telephone, and find out about their interests and other personal information, if they have ever posted (or had posted for them) a photo of themselves on the internet.

For more information, please read my face recognition article on the Bassetti Foundation website.

Are bionic suits a thing of fantasy or the future?

22 Replies Christopher Roberts

This is Technology Bloggers 100th article!
Well done and thank you to our 16 fantastic writers who have made this possible. Also thanks to all our readers and commenters for your support.
Lets aim for 1,000 now! 🙂

So, to the article! Everyone has heard of Iron Man – well I would think they have. The idea that such a suit could become a reality, is well… fiction. Until now!

A technology company called Raytheon has developed an exoskeleton, designed to effectively act as a bionic/robotic suit. The suit is designed to perfectly mimic and aid human actions, so the wearer can feel normal whilst performing tasks that they could never achieve without the aid of the suit.


One way of thinking about how it feels is to think of the power steering in a car. Without the power steering it can be really tough to turn the wheel, activate the power steering however and the car still feels normal and responds in the same way, the difference is, minimal effort is required to do a rather demanding task.

Doing press-ups in a bionic suit with ease

Performing everyday tasks is easy when wearing a bionic exoskeleton!

The suite has the potential to be fitted with some sort of amour plating, to protect the individual form attack – assuming it were to be used in a war-zone, and not in industry! D3O could actually make it a pretty invincible suit!

The suite can help the wearer lift up to 17 times what they could normally life, making tasks 17 times easier! A massive positive is that it doesn’t restrict the wearers range of motion, meaning that they can more freely and normally.

There is a problem though. The suit has to be attached to an external power source, as it guzzles power like crazy. Current batteries are either too weak, or too dangerous. For example, lithium-ion batteries can’t be strapped to a human, as they are prone to explosion if they get damaged!

A lack of power makes the suit extremely heavy, meaning that every movement becomes more difficult. This means that if there is a loss of power, the suit is hindering, rather than helping the occupant.

Aside from the lack of power, the main difference between the suit Raytheon have developed and Tony Stark’s suit is that Tony Stark’s can fly. Stark’s suit is also loaded with flairs, missiles and weapons galore, and has Stark’s supercomputer Jarvis running the interface. Raytheon’s suit is still in the early stages though, and no doubt will soon catch up 😉

Four Iron Man Suits

Tony Stark’s collection of Iron Man suits

If you want to know more about this super cool invention read CNN’s article about it.