If you've been in the market for a new Windows 10 PC, the pickings have been rather slim. That's quickly changing, though. Two major third party manufacturers \u2014\u00a0Acer and Hewlett-Packard \u2014 in addition to Microsoft, recently launched new Windows 10 laptops. A third manufacturer plans announce its offerings next week.\n\nNotable Windows 10 hardware enhancements\n\nI had a chance to get my hands on a few of the new PCS, and I checked out the specs of others. In general, I like what I see. The machines have a number of notable features that set them apart from earlier generations, including:\n\n\nIntel's latest mobile chip, known as Skylake\nBetter battery life\nlighter and thinner\nhigh-quality cameras, fingerprint readers and software to take advantage of features such as Windows 10's Cortana voice assistant and Windows Hello\n\n\nThese factors and more add up to the first generation of Windows PCs that genuinely give Apple's MacBook Air some real competition\u00a0\u2014 and offer reasons to finally upgrade from the aging Windows 7. (Here are more details on\u00a0Acer's Windows 10 announcement from this week,\u00a0and\u00a0HP's related news from last week.)\n\n\nThese PCs' longer battery lives are due in large part to Intel's newest generation of processors. As always, the latest generation is more powerful than the last, and more importantly, I think, it use less power. Battery technology is also improving, as PC makers develop more energy-efficient designs. Some of the companies' claims of 10- and 12-hour life may be exaggerated, but the new PCs will still run for quite a while on a single charge.\n\n\nPC manufacturers are also releasing 2-in-1 computers, or "convertibles," which are PCs with detachable screens that double as tablets. They are touch systems and work well with the some of the Windows 8-like features (tiled apps, for example) in Windows 10.\n\n\nHowever, if you purchase a convertible you better be careful. It's easy to accidentally drop the screen as you detach it from the keyboard. HP, though, did a good job engineering its convertible Spectre x2, which has a strong magnet to keep the two parts together even if you hold the PC by its screen and let the base dangle.\n\nNew Windows 10 hardware doesn't come cheap, lacks ports\n\nDownsides do exist, of course. First and foremost: price. The really thin, eye-catching new devices are expensive. Microsoft's new Surface Book costs $1,500 in it cheapest configuration. In comparison, Apple's 13-inch MacBook Air starts at $999.\n\n\nSome of the latest laptops don\u2019t have Ethernet or VGA ports to connect to wired Internet or a monitor, respectively.\u00a0You can, of course, buy dongles to get around the absence of those ports. They generally work well but add a bit of cost to the machine, and they're easy to forget when you're on the road.\n\n\nFinally, and obviously, these systems all run Windows 10. I've been using Windows 10 on two PCs, and with the exception of the lousy Edge browser, I'm generally pretty happy with it. It's a huge improvement over Windows 8, and as I get used to some of its new ways of doing things, I miss Windows 7 less than I thought I would.\n\n\nUpgrading an older PC to Windows 10 isn't always a great idea, but if you buy a new machine with the OS, it won't take you long to adjust.