Despite competition in the marketplace from the likes of HTC, Samsung and Sony, it's impossible to argue with the influence the iPhone has had on the wider world, let alone the mobile landscape and wider technology industry.
Since the first generation iPhone arrived back in 2007, the brand has sold hundreds of millions of units, and now all eyes are on tomorrow's Apple event to see what Apple has up its sleeve next. Most likely, the iPhone 6S, for starters.
We will have all the news from Apple's iPhone event, which starts at 6pm UK time tomorrow, Wednesday 9th September, but until then, we'll take a look back at the history of the iPhone...
The first iPhone (2007)
Image via technobuffalo.com
With the first generation of iPhone (also apparently called the 2G), we were first introduced to that now-standard home button and a design that has more or less endured (so far).
Vital Stats: 3.5in LCD screen | 320x480 resolution | 115mm x 61mm x 11.6mm | 135g | Bluetooth 2.0 | 4, 8 or 16GB flash memory | 2MP rear camera
... or was it? (1983)
Image via iphonehacks.com
Does this mean the 2007 iPhone launch was actually 24 years overdue? Back in 1983, Apple came up with this little beaut with touchscreen and the ability to pay by cheque electronically. Sadly, it never seemed to get past the prototype stage...
iPhone 3G (2008)
Image via paulstamatiou.com
New hardware features introduced with this second generation handset included, somewhat unsurprisingly, 3G connectivity, while the App Store also made its first appearance with iOS 2.0.
Vital Stats: 3.5in LCD screen | 320x480 resolution | 115.5mm x 62.1mm x 12.3mm | 133g | Bluetooth 2.0 | 8 or 16GB flash memory | 2MP rear camera
MORE: iPhone 3G review
iPhone 3GS (2009)
Image via The Telegraph
The 3GS was next on the list for Apple, with the handset coming a year after its 3G variant. There were a number of improvements too, like an enhanced camera, faster performance and voice control.
Vital Stats: 3.5in LCD screen | 320x480 resolution | 115.5mm x 62.1mm x 12.3mm | 135g | Bluetooth 2.1 | 8, 16 or 32GB flash memory | 3.2MP rear camera with VGA video at 30fps
MORE: iPhone 3G S review
More after the break
iPhone 4 (2010)
Image via vr-zone.com
Apple tweaked the design of the iPhone with the launch of the "4" in 2010, with its slimmer body a noticeable feature. The A4 system-on-chip, FaceTime video chat service and Retina Display also made a first appearance.
Vital Stats: 3.5in LCD screen | 640x960 resolution | 115.2mm x 58.6mm x 9.3mm | 137g | Bluetooth 2.1 and wi-fi | 8, 16 or 32GB flash memory | 5MP rear camera with HD video (720p) at 30fps | 0.3MP VGA front camera (480p) at 30fps
MORE: iPhone 4 review
iPhone 4S (2011)
Image via gottabemobile.com
Not for the first time, Apple retained the number but stuck a letter onto their latest model with this 2011 version. The 4S came with the A5 chipset upgrade, better camera and a first encounter with the Siri personal assistant, as well as integration with services such as iCloud and Twitter.
Vital Stats: 3.5in LCD screen | 640x960 resolution | 115.2m x 58.6mm x 9.3mm | 140g | Bluetooth 4.0 and wi-fi | 8, 16, 32 and 64 GB | Sony IMX145 8MP rear camera with HD video (1080p) at 30fps | 0.3MP VGA front camera at 30fps (480p)
MORE: iPhone 4S review
iPhone 5 (2012)
Image via wayerless.com
It might've been just us, but the 5 seemed to be a "blink-and-you-miss-it" affair. Was it just a stopgap between the 4S and the current 5C/5S models? It did put in a full year before being discontinued, so maybe not. And of course the most notable change was the launch of the Lightning connector and its larger size...
Vital Stats: 4in LCD screen | 640x1136 resolution | 123.8mm x 58.6mm x 7.6mm | 112g | Bluetooth 4.0 and wi-fi | 16, 32 or 64GB flash memory | Sony 8MP rear camera with HD video (1080p) at 30fps | 1.2MP HD front camera (720p) at 30fps
MORE: iPhone 5 review
The iPhone's great seismic shift? The 5C and 5S saw Apple double their money on the iPhone brand, with the C regarded as the more affordable option. And more colourful too. It owed much to its predecessor, the iPhone 5, and left out some of the features that went into the S (as we'll soon find out).
Vital Stats: 4in LCD screen | 640x1136 resolution | 124.4mm x 59.2mm x 8.97mm | 132g | Bluetooth 4.0 and wi-fi | 8, 16 or 32GB flash memory | 8MP rear camera with HD video (1080p) at 30fps | 1.2MP HD front camera (720p)
MORE: iPhone 5C review
... and the iPhone 5S (2013)
Unlike the 5C, the 5S stepped up from the 5 with the introduction of the A7 system-on-chip (rather than the A6) and features that include fingerprint recognition; a new home button design using a laser-cut sapphire cover; and updated camera with larger aperture and dual-LED flash.
Vital Stats: 4in LCD screen | 640x1136 resolution | 123.8mm x 58.6mm x 7.6mm | 112g | Bluetooth 4.0 and wi-fi | 16, 32 or 64GB | 8MP rear camera with HD video at 30fps (1080p) or 120fps (720p) | 1.2MP HD front camera (720p)
MORE: iPhone 5S review
"The biggest advancement in iPhone" says Apple, with both this model and its sister model, the iPhone 6 Plus (below) both containing the A8 chip for faster performance and faster graphics. And there's the tweaked design where the screen folds around to the aluminium casing.
Vital Stats: 4.7in LED-backlit screen | 1334x750 resolution | 138.1mm x 67mm x 6.9mm | 129g | Bluetooth 4.0 and wi-fi | 16, 64 or 128 GB flash memory | 8MP iSight rear camera with HD (1080p) video at 30fps | 1.2MP front-facing camera with HD (720p) video
MORE: iPhone 6 review
...and iPhone 6 Plus (2014)
Vital Stats: 5.5in LED-backlit screen | 1920x1080 resolution | 158.1mm x 77.8mm x 7.1mm | 172g | Bluetooth 4.0 and wi-fi | 16, 64 or 128 GB flash memory | 8MP iSight rear camera with HD (1080p) video at 30fps or 60fps and slo-mo video at 120fps or 240ps | 1.2MP front-facing camera with HD (720p) video
MORE: iPhone 6 Plus review
iPhone 6S? iPhone 6S Plus?
All the iPhone rumours suggest Apple will announce two new phones at its event tomorrow, Wednesday 9th September.
In line with previous Apple iPhone upgrades, it's likely we'll see an 'S' version of both iPhone models.
Faster processors, improved cameras and the addition of Force Touch finger sensor technology are likely to be some of the biggest features.
All will be revealed tomorrow. Read our Apple launch event preview to find out what else we expect to see announced...