After partnering with LG for the last two Nexus handsets, Google teamed up with Motorola this time around.
Another change is the increase in price with the Nexus 6 starting at £499. That makes it more than double the launch price of the Nexus 4 and places the device at the top end of the market with the likes of Apple, Samsung, Sony and HTC. It's a new era for the Nexus brand. Read: Where to buy the Nexus 6 in the UK.
In terms of design, the Nexus 6 is a super-sized Moto X with a slightly less fancy Motorola logo and the addition of the Nexus brand stamped on the back. It's thick, heavy and a giant which you really do need to try out before making the jump.
Build quality is a step up from the Nexus 5, though, with an aluminium frame running round the edge providing strength. The rear cover is still plastic and feels nice although it's less grippy than its predecessor.
If you can get on with the size of the Nexus 6, there are some seriously top-notch pieces of hardware on offer.
The 6in screen uses a Quad HD resolution so it's incredibly crisp and the colours pop thanks to AMOLED technology. Once again, it's the size that we're not convinced by.
The premium theme continues with a Qualcomm Snapdragon 805 processor, Adreno 420 GPU and 3 GB of RAM. The benchmark results are impressive including the highest benchmark 3 score we've seen. In the real world the Nexus 6 is lightning quick and only slows down for the classic camera app launch.
Storage is higher with 32- or 64 GB but once again Google has decided to leave a microSD card slot out which is a big shame.
Wireless is modern and while the Nexus 6 might be lacking compared to some alternatives with no IR blaster, fingerprint scanner, heart-rate monitor or other gadgetry, Google has included wireless charging which is still a fairly rare feature.
There's also a Turbo charger which will get the device to 50 percent charge in around 45 and keeping the Nexus 6 topped up will be important as it will only last a day unless you keep to light usage.
The Nexus series of smartphones has been a consistent let down on the photography side of things but Google has tried to address this on the Nexus 6 with a decent 13Mp rear facing camera. It benefits from optical image stabilisation, a dual-LED ring flash and the ability to record 4K video at 30fps.
Android 5.0 Lollipop is a good reason to buy the Nexus 6 although keep in mind that it's also available for older devices.
The stock Android user interface is better than ever with the colourful material design which comes to life on the Nexus 6's gorgeous display. We love the new overview multi-tasking, notifications bar and other new features but it's just difficult to use because of the size.
The Nexus 9 tablet's double-tap-to-wake feature is strangely nowhere to be seen and Google's switch to Hangouts for text messages is now contradicted with a new Messenger app.
There are some good things about the Nexus 6 including build quality and some top-end hardware However, it's simply too big, unwieldy and expensive to really get behind it. The Galaxy Note 4 is a better phablet and the excellent LG G3 is now available for under £300.