Deceased Apple frontman Steve Jobs may have scoffed at the idea of phablets, but it's undeniable that big screen smartphones appeal to a large number of buyers.
This fact has been showcased by the high sales Samsung has enjoyed since it released its first phablet, the Galaxy Note, in 2011.
Offering a wealth of diverse technological and software innovations, the iPhone 6 Plus and Nexus 6 are both designed to compete in the top-end smartphone space and wrestle control of the phablet market from Samsung.
However, with Samsung having released its latest Galaxy Note 4 flagship, which is loaded with an equally impressive set of features, knowing which device is right for you is a tricky task.
Design and build
Visually the iPhone 6 Plus, Nexus 6 and Galaxy Note 4 are about as different as you can get. The iPhone 6 Plus looks like a blown-up version of its smaller sibling, the iPhone 6, and features a metal chassis with rounded sides and corners.
The Nexus 6 has a polycarbonate back and Gorilla Glass front that clips into a metal frame, while the Galaxy Note 4 features a removable leather-finish polycarbonate back and metal front.
The only unifying factor is that all three are outright huge. The Nexus 6 is the biggest, measuring 159x83x10mm and weighing 184g. The Galaxy Note 4, shown right in the picture below, boasts 154x79x8.5mm dimensions and weighs 176g. At the bottom of the pile the iPhone 6 Plus, shown below left, measures 158x78x7.1mm and weighs 172g.
We found the Nexus 6 felt the most unwieldy to hold and is the least regular - let alone skinny - jeans friendly of the three.
Picking between the iPhone 6 and Galaxy Note 4, while neither is small enough to comfortably use one handed, both were fairly comfortable to hold. However because of its polycarbonate back the Samsung handset felt noticeably cheaper than its Apple competitor.
In terms of build quality we found the Galaxy Note 4 was the weakest of the three as its sides and back are noticeably more prone to chipping than the Nexus 6 and iPhone 6 Plus.
Between the iPhone 6 Plus and Nexus 6 we found that, thanks to its use of metal, the Apple phone feels more well built and was noticeably less prone to picking up marks than our white Google review unit.
The only factor in the Galaxy Note 4's favour is that it comes with a custom S Pen Stylus. The stylus docks into the bottom edge of the Galaxy Note 4 and offers a variety of productivity features that add to its enterprise appeal - more on this later.
The Nexus 6 also loses out when it comes to extras, as it's the only one of the three not to feature a custom fingerprint scanner. This makes it feel, from a design perspective, like the least imaginative of the three.
Winner: iPhone 6 Plus
Google, Apple and Samsung all made a big song and dance about their respective handsets' display technologies.
On paper there's a good reason for this as all three come with some seriously high specced screens.
The Nexus 6 features a 6in, 1440x2560, 493ppi quad HD Amoled display, the Galaxy Note 4 a 5.7in, 1440x2560, 515ppi Super Amoled display and the iPhone 6 Plus a 5.5in, 1920x1080, 401ppi Retina HD display.
While the specs may make it sound like the iPhone 6 Plus is the clear loser, the Apple handset actually performs surprisingly well and manages to outperform its Android competitors in a variety of ways.
This is largely due to the way Samsung and Motorola, which designed the Nexus 6 for Google, calibrated the phones' Amoled displays.
Amoled improves screen quality by letting displays produce deeper and richer blacks. It does this by electrically charging each pixel to generate colours, meaning that all the screen has to do is stop charging them to create black.
While this is great, many manufacturers still oversaturate colours on Amoled displays in a bid to make colours look "punchier". This problem remains true on the Nexus 6 and Galaxy Note 4.
The Nexus 6 is the biggest sinner in this regard and has a tendency to slightly distort colours, particularly whites, when viewed from the side, and can push reds far more than it should. This isn't a problem for general purposes, but it's particularly noticeable when viewing photos or images.
The distortion is less noticeable on the Galaxy Note 4 and is easier to reduce using the handset's custom display settings.
However, even with this, the iPhone 6 Plus still features noticeably more realistic colours than its Android competitors. This is largely due to the use of IPS technology. IPS displays create more consistent and realistic colours by organising liquid crystals on a fixed plate that's charged at a consistent rate.
The Nexus 6 also loses out when it comes to brightness levels and is noticeably dimmer than the Galaxy Note 4 and iPhone 6 Plus, which both feature dazzlingly bright displays.
Winner: iPhone 6 Plus
Next: Operating system and security