There are some phones which, unfortunately, experience lag. Google are aware, and are working on fixes. It doesn't seem to affect everyone, though. It's a bit bizarre.

If you don't mind a bit of modding, you can make it into quite a beast with not-a-lot of effort (the below should take 20-30 mins, but it will wipe your phone the first time you're doing it - but don't worry, Marshmallow can restore all your apps it backs up automatically when you're setting it back up).

You'll need to unlock the bootloader, but since this is a Nexus, it doesn't affect the warranty. There's plenty of tools to help you do this if you're not familiar with fastboot.
Then once you have done that and installed the TWRP recovery, flash Pure Nexus ROM, and it's GApps (all in that link).
Then flash the ElementalX kernel and follow the guide to setup the GhostPepper CPU governor settings. Using the ElementalX app is the easiest way (but not free).

Then lastly, there's CameraX which enables 240fps slow-mo and EIS (Electronic Image Stabilisation) which was only supposed to be on the 6P (which has the same camera hardware).

And now my Nexus 5X is buttery smooth, lasts easily all day on battery with 4+ hours SOT, and has a host of extra features and customisations to boot (Layers is fantastic - allows you to theme the phone is many ways, including 3rd party apps. Great to make the phone your own).

But this is the beauty of owning a Nexus device. They're built to be added on to and modified without any worry from Google.
If your HTC or Samsung or Moto is found 'modded' when it comes to a warranty claim, they'll hang you high and dry.

Had this phone since release, has been pretty laggy sometimes and battery life not brilliant lasts a day, good deal though.

weren't CPW selling it for £299...still selling it for £299?

Sold my Nexus 5 to upgrade to this but got tempted with the Moto X Force and never looked back, it's amazing. battery life is very important to me and I had concerns with this after the awful battery on the Nexus 5

Heat from me, great phone for that price.

Recently my galaxy S6 start having some issues, like only showing miss calls, or battery dropping from 11% to 5% just after I press the power button then go to 0% in about 2 minutes, so I contacted Amazon as I bought it from them and still have a 4 months or so warranty, they asked me to return for full refund. Happy but what will I buy with that money (410£) so my question is this one a downgrade or worthy competitor to the S6, or should I get the S7

No lag on mine. And battery miles better than my old Nexus4.

£261 amazon warehouse very good condition - it'll be like brand new. I would get that if I wanted a Nexus

Check out Ulefone Power, look for comments in other mobile threads. Beast of a phone for £120. No lag due to octa core and more importantly 3GB RAM. Totally vanilla android an 6050mAh battery says god bye to battery stress.

Don't forget the bigger trousers with the bigger pockets for it to slip into, and the plastic surgery to get bigger hands to use the phone one-handed, still :wink:

Ooh you cynic. https://www.youtube.com/watch?v=Bm8Y9kKPYqM

And it's not THAT slim either..you do notice the extra thickness - I like the weight of it though

Sorry but I've voted cold because Ebuyer are selling this cheaper on their on website.

Exactly! I don't like bigger than the s6

Don't mean to hijack the deal, but you can get this cheaper:

http://www.hotukdeals.com/deals/google-nexus-5x-32gb-white-259-99-eglobalcentral-2400853

The black one: http://www.eglobalcentral.co.uk/lg-google-nexus-5x-32gb-4g-lte-sim-free-unlocked-black.html

Trusted seller too; I've used them a few times.

ebuyer are hopeless but eglobal a trusted seller?? You must have been one of the lucky ones.

One of the many sellers who create a uk website and walk away if there are any issues, knowing we have no recourse through the UK consumer laws, you are on your own.