Read more about what Apple announced here: iPhone 5S, iPhone 5C launch as it happened - all the news from Apple's 10 September event.
When can I buy the new iPhone 5s and iPhone 5c?
You can pre-order an iPhone 5c starting on Friday 13 September; the 5c will actually be available on September 20. The iPhone 5s will also be available on September 20, but Apple isn’t taking pre-orders for that model. These dates apply to the UK, Australia, Canada, China, France, Germany, Hong Kong, Japan, Puerto Rico, Singapore, and the US.
Read this story for details about how to preorder the new iPhone 5s. What time do iPhone 5c pre-orders start in UK?
How much do the new iPhones cost?
In the run up to the announcement the rumours suggested that the iPhone 5C would be a cheaper iPhone, but the price difference is really minimal.
In fact, when you look at the off contract prices of the iPhones, the new iPhone 5c isn't much cheaper than the iPhone 5 was last year. A 16GB iPhone 5c costs £469 while the 16GB iPhone 5 was £529.
There's not really much difference between the price of the iPhone 5c compared to the iPhone 5s either. The 16GB iPhone 5C is £469. Pay just £80 more and you can get a 16GB iPhone 5S for £549.
If you want the 32GB iPhone 5c, the price is the same as for the 16GB iPhone 5s, which is £549.
The 32GB iPhone 5C is £629 and the 64GB iPhone 5C is £709.
Wondering why Apple's iPhone 5c isn't cheap? Read our article: Why Apple didn't launch a low-cost iPhone 5C.
If you want to pay your cash up front, you will be able to grab yourself an iPhone 5c or an iPhone 5s without a contract (aka unlocked) from Apple’s online store, from its physical stores and, of course, from mobile phone stores like Carphone Warehouse. Some people who have an existing contract that they don't want to lose, or those who prefer the pay-as-you go model may prefer to do this.
Buying an iPhone 5c with a mobile contract is a more complicated business thanks to the huge variation tariffs and networks on offer. However, it is likey that the networks will start a war amongst themselves to undercut each other on pricing.
We've outlined the tariff deals we've had confirmation of so far in these articles:
Watch our video comparing the iPhone 5s, 5c, 5, iPhone 4s and iPhone 4.
What are the colour options?
The most striking difference is colour. These new iPhones mark the first time the iPhone has comes in anything other than black and white.
The iPhone 5C is available in pink, yellow, blue, green, or white. The colours are bright and vibrant. According to a Macworld poll, the most popular colour for the iPhone 5C is likely to be blue (43% of the vote).
The iPhone 5S looks a little more like the iPhone 5, but there is a new colour option: gold, along with silver and gray (or Space Gray as Apple is calling it). The silver is comparable to last year's White & Silver option, and the Space Gray reminds us of the Black & Slate iPhone 5 option last year.
We were dubious about the gold option for the iPhone 5C when the rumours of the iPhone 5s colour emerged, and while we're still not completely convinced by it, it's definitely not as 'blingy' as you might imagine. The poll mentioned above suggested that black would be the most popular colour for the iPhone 5S, although grey looked more popular option than white. Perhaps if we'd called it Space Grey it would have been even more popular.
There are eight new colours available across the new iPhone ranges, suggesting that there will be something for everyone. It certainly makes a change, competitor smartphones are predominantly black or grey.
How big are the new iPhones?
Both the iPhone 5s and the iPhone 5c have a 4in Retina display. However the dimensions and weight of the two phones are slightly different.
The iPhone 5C measures 124.4mm by 59.2mm, and is 8.97mm deep. It weighs 132 grams.
The iPhone 5S measures 123.8mm by 58.6mm, and is 7.6mm deep. It weighs 112 grams.
This means the iPhone 5C is slightly longer and thicker than the iPhone 5S, and a little heavier.
The iPhone 5 measurements were identical to the iPhone 5s - 123.8mm by 58.6mm and the depth was 7.6mm - so you may find that your existing iPhone 5 cases are compatible with the iPhone 5C.
Both phones are a lot lighter than the iPhone 4s (which is still available). The iPhone 4s weighs in at 140 grams.
Will the new iPhones work with 4G?
The iPhone 5c and iPhone 5s will support more LTE 4G bands than any other smartphone in the world, according to Apple. That's support for up to 13 LTE wireless bands. However, initially there was some concern when the information page on Apple's website suggested that only EE and Vodafone would be able to provide 4G.
We asked the networks to elaborate and we've had confirmation from 3 and O2 that they will be offering the iPhone 5C and iPhone 5S on their 4G network.
The iPhone 5S and iPhone 5C will run on the following bands, in the following MHz according to Apple's notes: 1 (2100 MHz); 2 (1900 MHz); 3 (1800 MHz); 5 (850 MHz); 7 (2600 MHz); 8 (900 MHz); 20 (800 DD).
How do the cameras compare?
If Apple’s specs and feature list are any indication, that camera in the iPhone 5s should offer noticeably better performance than the iPhone 5c, along with some useful capabilities.
For starters, the 5s uses a new, five-element lens that Apple designed specifically for the new iPhone. This new lens offers an f/2.2 aperture, the sensor has a 15 per cent larger active area, and the pixels on this sensor are 1.5 microns in size, larger than the iPhone 5 and larger than other smartphones.
Like the iPhone 5s, and like the iPhone 5 before it, the iPhone 5C offers an 8MP camera. However, this 8MP camera is inferior to the camera in the iPhone 5s which offers an f/2.2 aperture and other . The iPhone 5s also includes a new dual-LED True Tone flash that Apple says is the first of its kind on a phone or a standalone camera. One flash is cooler white, while the other is amber with a warmer color temperature. The phone monitors ambient light and then fires the two flashes together to match that light. Together, Apple says, the two flashes provide more than 1000 unique light combinations, for flash lighting that’s brighter and more natural.
The 5s also includes improved image stabilization features, a new burst mode and slow-motion video recording.
Is battery life in the iPhone 5s and iPhone 5c any good?
Apple claims that both the iPhone 5s and iPhone 5c offer battery life equal to or greater than that of the iPhone 5. Specifically, the company says the new iPhones offer 10 hours of 3G talk time, 10 hours of LTE or Wi-Fi browsing, or 250 hours of standby time. Compare that to Apple’s claims for the iPhone 5 when that model was released: 8 hours of 3G talk time, 10 hours of Wi-Fi browsing, or 225 hours of standby time.
We’ll of course thoroughly test each model’s battery life in the coming weeks.
Will both iPhones run iOS 7
Apple announced that the iOS 7 release date will be Wednesday 18 September, and that both new iPhones will be able to utilize the new operating system.
Read more here: Will I be able to update to iOS 7 on my iPhone, iPad?
What storage options are available?
There are two versions of the iPhone 5c available: 16GB and 32GB.
The iPhone 5S is available in 16GB, 32GB and 64GB versions. There had been some expectation that Apple might offer a 128GB version of the iPhone, but the company launched no such product.
For many the extra storage offered by the iPhone 5s will be the deal breaker. However, with iCloud, and the potential offered by external storage devices, you may not need as much storage as you think.
What about the iPhone 4S?
Apple's still offering the iPhone 4S. You may be wondering whether it's a good option for your needs. Read this article for more information: Should I buy an iPhone 5 or buy an iPhone 5s or iPhone 5c?
How does the iPhone 5s compare to the competition?
There are several rumoured iPhone 5s features that Apple didn't show off at its iPhone event, some of which feature in smartphone rivals from Apple's competitors. Read this article for more information: iPhone 5s vs competition: 8 features Apple's new iPhone 5s doesn't have.