When Apple released its latest handsets in September 2013, the iPhone 5S and iPhone 5C, many buyers rushed to put an order in for the flagship 5S model.
However, with its lower price and the fact the device comes in a raft of bold, brash colours, this could prove enticing to many users, especially those on the older 4S model.
But is it worth upgrading, or should you stick with your 4S and find a new, cheaper SIM-only deal that can replace the contract? Similarly, for those who are tempted to buy an Apple smartphone for the first time but are put off by the iPhone 5S's high price tag, is it worth seeking a cheap 4S, or adding a little colour to your life with a 5C?
It's also worth noting that both these old models can still run the very latest Apple mobile operating system, iOS 8.3, which was rolled out on 9 April 2015. The iPhone 4S is the oldest model Apple has decided to support on the new platform.
iOS 8.3 includes a redesign of the ‘emoji' keyboard to display more images and improve navigation. Fixes include fewer WiFi dropoffs, improved performance and stability when rotating devices between portrait and landscape.
The iOS 8.3 update is 223MB in size for those on the most up-to-date version of iOS, and takes around five minutes to download and a further five to 10 minutes to install.
At least nine million new iPhone 5S and 5C devices were sold over the opening weekend, underlining the huge demand for the new phones. However, Apple has not broken down these figures into the two phones, so it is unclear just how popular the 5C is proving. Given the rampant demand for the 5S at launch, it may be fair to say it has been somewhat overlooked by the buying public.
Design and build
The most obvious difference between the two phones is the design. The iPhone 4S was the last Apple phone to have the smaller 3.5in screen and it really does seem a lot smaller than the 4in iPhone 5C.
The 5C also has softer, mellower edges compared with the more rectangular 4S, which give it a nicer feel, while the 5C's dimensions of 124x59x8.97mm make it very comfortable in the hand.
The 4S, by comparison is 115x59x9.3mm. As you can see from these numbers, the 5C is not just taller and wider, but it's thinner, by 0.3mm (pictured). While this is not much in the grand scheme of things, you certainly notice the difference.
This is also true of the weight. The 5C is feather light at 132g, while the 4S is 140g. This, again, is very little difference, but it is noticeable. The iPhone 5C also just has that sense of ‘newness’ with its design that feels more appealing. This is probably because the 4S, and the iPhone 4, are victims of their own success, with the design of these older iPhones having been so ubiquitous for the last few years that it is becoming somewhat dated.
Perhaps the only area where the 4S wins out is in build quality. The 5C is made of plastic, while the 4S is housed within a glass and metal body. That said, the 5C does not feel like a cheap phone and if you use your phone in a case, you'd never feel the difference anyway.
All in all, the 5C is the nicer phone to look at, as well as being lighter, thinner and more comfortable to hold. The 4S, like the iPhone 4, is still a nice phone to look at and use, but the 5C wins.
Winner: iPhone 5C