Following Apple's unveiling on 7 September and a week-long pre-order period, the new iPhone 7 Plus has hit the shelves and is available to buy now. If you can find it that is - iPhone 7 Plus units have sold out around the world. The iPhone 7 Plus with dual cameras, new design features and tons of power. Here's everything you need to know about the new iPhone, including iPhone 7 Plus release date, iPhone 7 Plus features, iPhone 7 Plus specs and iPhone 7 Plus price. Plus, find out how to buy the iPhone 7 Plus now.

The iPhone 7 Plus boasts a new-to-iPhone dual lens camera sensor that Apple claims is the best yet in any iPhone, and even the iPhone 7 itself missed out on the feature. The other headline upgrades for the iPhone 7 Plus are its water resistance, stereo speakers and claimed longer battery life.

The two 12Mp cameras combine to boast hi-res optical zoom at 2x, a great improvement for casual and professional iPhone photographers alike. The iPhone 7 Plus’ screen is 1920 x 1080 resolution, so no improvement on last year’s iPhone 6s models.

The iPhone 7 Plus is also water resistant to an IP67 standard. Read on to find out more.

Read next: iPhone 7 vs iPhone 6s | iPhone 7 vs Samsung Galaxy S7 | How to take underwater photos on iPhone | iPhone 7 review.

Updated 13 September with additional camera details.

iPhone 7 Plus release date: When is the iPhone 7 Plus coming out in the UK?

The iPhone 7 Plus went on sale on 16 September after a week-long pre-order period. It is now available to buy in 30 other countries worldwide, with more to follow in the coming weeks and months.

If you plan on buying the iPhone 7 Plus, check out our iPhone 7 Plus contract deals article.

iPhone 7 Plus price UK: How much does the iPhone 7 Plus cost?

The 16GB model of iPhone is no more, with Apple introducing 32GB as the standard base storage option. The 32GB iPhone will start at £719, which is actually £100 more than the iPhone 6S Plus started at before the event. The 128GB model is £819, while the 256GB model costs £919.

For the first time, the iPhone is available in five colours, including the new Black variation and Jet Black, a glossy variation that is only available in the 128GB and 256GB options, not the base 32GB.

iPhone 7 Plus release date: Where to buy the iPhone 7 Plus UK

Use the tool below to choose your preferred iPhone 7 Plus colour, model and contract type and see the best deals available right now. Read on for more iPhone 7 Plus buying options, too.

Pre-orders of the iPhone 7 Plus kicked off on 9 September, and shipping began on 16 September, but the iPhone 7 Plus is sold out already. On 14 September, Apple revealed that initial quantities of the iPhone 7 Plus had sold out in all colours and capacities. That means, unless you pre-ordered the iPhone 7 Plus, you're unlikely to be able to get your hands on one for several weeks.

Apple spokesperson Trudy Muller said: "We sincerely appreciate our customers' patience as we work hard to get the new iPhone into the hands of everyone who wants one as quickly as possible."

Apple's website is currently touting a 2 to 3 weeks dispatch time for the iPhone 7 Plus. Unless you want a Jet Black model, in which case you're looking at a November dispatch date.

Click here to buy the iPhone 7 Plus direct from Apple.

Click here to buy the iPhone 7 Plus from Carphone Warehouse.

Click here to buy the iPhone 7 Plus from EE.

Click here to buy the iPhone 7 Plus from Giffgaff.

Click here to buy the iPhone 7 Plus from Mobile Phones Direct.

Click here to buy the iPhone 7 Plus from Mobiles.co.uk.

Click here to buy the iPhone 7 Plus from O2.

Click here to buy the iPhone 7 Plus from Tesco Mobile.

Click here to buy the iPhone 7 Plus from Three.

Click here to buy the iPhone 7 Plus from Virgin.

Click here to buy the iPhone 7 Plus from Vodafone.

iPhone 7 Plus release date, price & specs: Design & build

The first thing you might notice about the iPhone 7 Plus line-up is that there are five models, two of which are new (bye, bye Space Grey). You can now get the iPhone in Silver, Gold, Rose Gold, Black and Jet Black.

Jet Black is a high-gloss model that Apple is using in most of its promotional videos and photos. It has a stainless steel Apple logo.

The iPhone 7 Plus also doesn't have any antenna lines across the black, so it looks more unibody than ever, and you'll spot that dual-camera on the rear too, but we'll talk more about that later.

In terms of build, the iPhone 7 Plus is water and dust resistant – IP67 protection standard means you can’t quite take it for a long swim, as highest protection is IP68, but it should be fine in up to one metre of water for up to 30 minutes.

iPhone 7 Plus release date, price & specs: Screen

The display on the iPhone 7 Plus is improved, now 25% brighter than the iPhone 6 Plus, with a wide colour gamut, colour management and the continuation of 3D Touch capabilities.

iPhone 7 Plus release date, price & specs: Camera

The iPhone 7 Plus's exclusive new feature is the new camera system. The iPhone 7 camera is improved with optical image stabilisation for the first time on a base iPhone model, but the iPhone 7 Plus boasts a dual lens set up that improves with two 12Mp cameras.

One of those lenses is the usual wide angle, the other is a telephoto lens. These cameras combine to create a zoom feature that works within the tiny body of a smartphone. You have the option to choose between 1x and 2x – 2x gives you the effect of a telephoto lens. This is an optical zoom. You can also touch and drag up to 10x zoom, which is a software based zoom but still using the telephoto lens, so expect much better results.

These two cameras are a powered by a 1/3in sensor and slightly smaller 1/3.6in sensor. This discovery was made by Reddit user /u/ImKuya who used EXIF data (data found on photos) to calculate the sensor sizes.

iPhone 7 Plus release date, price & specs: Performance

Apple's new A10 Fusion processor has four cores, and Apple claims this is 40% faster than the A9, making the iPhone 7 Plus the fastest smartphone on the market. The company says it will offer console-level gaming - which will come in handy when Super Mario Run, which was also announced at the iPhone 7 launch, comes out for iPhone.

Apple claims the A10 Fusion gives the iPhone 7 Plus the longest ever battery life for an iPhone - at least an hour more battery life than the iPhone 6s Plus.

iPhone 7 Plus release date, price & specs: Other features

Apple has also improved the Home Button. It is no longer a physical button but a key with haptic feedback. This uses a Taptic Engine, which iFixit's iPhone 7 Plus teardown reveals is actually a lot bigger than the one found in the iPhone 6s, as it is now used for both the Force Touch screen and that new Home Button.

The speakers in the iPhone 7 Plus, for the first time, are stereo. One is on the top, the other on the bottom.

That also brings us on to EarPods and AirPods. It was all true as Apple waves goodbye to the 3.5mm headphone jack. Apple will bundle Lightning EarPods with every iPhone 7 and 7 Plus along with a Lightning to mini-port adapter.

Apple also announced AirPods, which are wireless versions of Apple’s famous EarPods. They are the same shape as EarPods without wires. They cleverly have Siri integration thanks to inbuilt mics. One charge will give you 5 hours of battery life and the case holds 24 hours of charge for power on the go. The AirPods are clever enough to let you switch between Apple devices depending on which you are using for audio.

Finally, Japan units of the iPhone 7 and 7 Plus will now include Felica tech, allowing Japanese Apply Pay users to use the service with Japan’s most used contactless standards.

We chatted about the iPhone 7 Plus launch in our podcast. Listen here:

iPhone 7 Plus release date, price & specs: iPhone 7 Plus Specifications

Here are the headline specifications for Apple’s new iPhone 7 Plus:

Retina HD display

5.5-inch (diagonal) LED-backlit widescreen

Multi-Touch display with IPS technology

1920x1080-pixel resolution at 401 ppi

1300:1 contrast ratio (typical)

Wide colour display (P3)

625 cd/m2 max brightness (typical)

Dual-domain pixels for wide viewing angles

Fingerprint-resistant oleophobic coating

Support for display of multiple languages and characters simultaneously

Display Zoom

Reachability

Rated IP67 under IEC standard 60529

A10 Fusion chip with 64-bit architecture

Embedded M10 motion coprocessor

12MP wide-angle and telephoto cameras

Wide-angle: ƒ/1.8 aperture
Telephoto: ƒ/2.8 aperture

Optical zoom at 2x; digital zoom up to 10x

More to follow. Read the next page for all of the rumours before the iPhone 7 Plus was released to find out which were true.