The best Ultrabooks: ultra light Windows 10 laptops

Apple isn't the only company that can offer slim and light high-end laptops. The Windows 10 product ecosystem is packed with great options.
With a less hefty form factor usually comes a more hefty price. They're usually at the higher-end of the market, designed to pack top hardware into a highly portable form factor for performance on the go. A thick, heavy gaming laptop these are not.
We've rounded up a selection of the very Ultrabooks and ultra light Windows 10 laptops out there, including some models not yet on sale but that are absolutely worth looking out for.
Updated for June 2016 with new entries from Samsung, LG, Razer and HP.

Dell XPS 13 (2015)

Dell XPS 13
When Dell announced its XPS 13 laptop at CES 2015, they blew away everyone in the room. The stand out feature is its Infinity Display, an almost borderless screen that helps Dell cram a 13-inch notebook into the form factor of an 11-inch one, and after a late-2015 refresh the entire compact package is even better.
There are also configuration options to suit a wide range of needs and budgets. The base model has no touchscreen and a 5th generation Intel Core i3 CPU, while the top-spec model has a QHD+ touchscreen display and an Intel Core i7 CPU with up to 512GB of SSD storage.
Add to that an aluminum and carbon fiber construction, phenomenal battery life on some models, and one of the best laptop designs in recent times… and you've got yourself a winner.

Lenovo Thinkpad X1 Carbon

Thinkpad X1 Carbon
Another CES 2015 announcement, the Thinkpad X1 Carbon is up there with the Dell XPS 13 as one of our outright personal favorite notebooks of 2015 — and it still is today after an update at CES 2016. It's pricey, but it offers top of the line hardware with it. And for the ultimate productivity on the go you can stick a SIM card in it and get LTE without the need for a hotspot.
Other features of note include a QHD+ touchscreen display, Lenovo's legendary tank-like Thinkpad construction, and an integrated fingerprint scanner that can be used with Windows Hello in Windows 10.
The Thinkpad X1 Carbon doesn't come cheap. But it's one of the finest Ultrabooks you'll find.

Razer Blade Stealth

Razer Blade Stealth
Razer proved with the initial Blade that gaming laptops didn't have to be massive, ridiculous-looking affairs, and that there was room for a sleek, stylish option. With the Razer Blade Stealth, the Taiwanese manufacturer has taken both a step back and a massive step forward. The Stealth is a less capable gaming machine on its own than the other Blade laptops, but it can also become a powerful desktop gaming rig when hooked up to the external Razer Core.
So, what you have when you're on the road is a thin and light Windows 10 ultrabook with a Skylake Core i7 processor and a 12.5-inch QHD or 4K display. You've also got Thunderbolt 3 USB-C, 8GB of RAM and up to 512GB of PCIe SSD storage. Oh, and the keyboard has Razer's Chroma technology baked in, meaning you get quite the light show.
But without dedicated graphics, the Stealth is basically a $999 ultrabook, much like many others. Sure, it's a very nice ultrabook, but it's the Razer Core that takes it to the next level. It turns this ultrabook into a full-on gaming PC by hooking you into desktop-class graphics cards and expands your ports and connectivity. So you have the beastly rig when you're at home and want to play your favorite games, and a thin, light, highly portable machine for when you're on the road. No wonder, then, Razer is touting this as the 'ultimate ultrabook.'
It all sounds super exciting. But, the Razer Core won't be available until Summer 2016 and without it the Stealth loses some of its appeal. And initial availability isn't widespread, with few markets initially being offered the chance to order through Razer's own store.

Dell XPS 15

Dell XPS 15
The new XPS 15 debuted at Computex 2015 to intense media attention despite no-one really knowing anything about it. The new 15-incher follows the design style set by its smaller sibling, the XPS 13, with its Infinity Display helping pack that 15-inch panel into the form factor of a traditional 14-inch laptop.
If you want discrete graphics, a 4K display, Skylake and a ridiculously slim, light and compact form factor, the XPS 15 is going to be top of your list of considerations.

HP Spectre

HP Spectre
If the idea of the thinnest laptop on Planet Earth sounds appealing to you, then here it is. HPs latest Spectre is a stunner, with a form factor that almost defies normal sense and reason. Aside from the small hump at the back, it's wafer thin all around.
That doesn't mean it's all show and no go. There are some trade offs, like a non-touch panel on the 13.3-inch display, but inside it's packing plenty of horsepower. There's a latest generation Intel Core i5 or i7 processor, 8GB of RAM and up to 512GB of SSD storage. Not to mention a battery that could last up to 9 hours, in a chassis this slim. Crazy.

HP Spectre x360

The Spectre x360 was the star of the show at Microsoft's Build 2015 developer event, with every developer in attendance walking away with one. And what a gift they got. The Spectre x360 is slim, stunning and extremely well made. It's got the added bonus of being a convertible, meaning you're also able to fold that display all the way around and use it like a Windows tablet.
It's got a metal body that is so common now among the high end notebooks from the various manufacturers. With that convertible nature and touch display, high-end internals and a great design, the Spectre x360 is a top choice for a Windows 10 all-rounder.

Samsung Notebook 9

What Samsung has made here is a laptop with a full Intel Core i processor that weighs under 2lbs. It sounds almost unreal, but the Notebook 9 makes it a reality, with a Skylake Intel Core i5 inside where previous efforts from Samsung had Core m.
That lightness is brought about by being constructed from an aluminum and magnesium alloy, so it's also tough. The 13.3 inch full HD display looks great and you get 8GB of RAM and 256GB of SSD storage thrown in too. With up to 10 hours battery life, you can step out for the day in comfort.

Toshiba Radius 12

Toshiba Radius 12
The Radius 12 made its debut in late 2015 and it was hard to ignore from the get go. Despite being so small in size, it boasts an optional 4K display that looks absolutely incredible. Words can't really do it justice. And it's only 12.5-inches, too. Underneath you get latest generation Core i7 chips from Intel, 8GB of RAM and m.2 SSD storage.
The added bonus to the Radius 12 is that it's not just a laptop. The display folds around, so what you have is a 2-in-1 convertible laptop, which means its great for work and play. Throw in HDMI out, two USB 3.0 ports, a USB 3.1 Type-C port and a memory card slot and you've covered all the main bases.

LG Gram 15

The LG Gram is a bit of a surprise package. Like the XPS 15 it packs a 15-inch display, which ordinarily would put it out of this class of laptop. But staggeringly it only weighs 2.16lbs. It is crazily light for a laptop this size. LG isn't the first brand you think of when choosing a laptop, but it's a company that makes great displays among other things.
The Gram 15 packs a full HD display, HDMI out, USB-C and SD card reader into its sleek frame, as well as Intel Core i5 or i7 processors, 8GB of RAM and 256GB of SSD storage. The only downside is the battery — that thinness and lightness comes at the expense of internal volume for the battery.