Samsung and HTC outsold Apple in U.S. smartphone sales over the last three months. That means they are now the top two smartphone companies in the U.S., and both companies are about to launch new top-tier devices in time for holiday shoppers. Samsung's Galaxy Nexus doesn't have a sale date yet, but the specs are known and it is going to debut with Google's newest operating system, Android 4.0.

HTC on the other hand, is debuting the Titan on Nov. 7, and this device will be running Microsoft's Windows Phone OS instead of Android. It's worth pointing out that HTC made the first Google phone, the Nexus One in 2010. HTC has devices on both operating systems, but this will be the first to ship with Windows Phone's new update, 7.5 (nicknamed Mango). It will be available on AT&T only.

Android 4.0 features the handy Face Unlock security function, voice typing and Android Beam, a wireless transfer system using the near field communication technology. Galaxy Nexus features a 4.65-inch display with curved glass, five megapixel camera and the NFC chip that can also be used with Google Wallet.

HTC Titan uses the Windows Phone 7.5 OS that begins with a live tiles display that can be customized. Instead of icons and apps, the screen is divided into squares that automatically update your texts, tweets, emails and apps. Windows Phone also syncs your Facebook, Twitter and Linked in accounts with People Hub so all your buddies' info is in one place. The Titan comes with a huge 4.7-inch screen, eight megapixel camera and Xbox live, so you can game on the go. Below are two promotional videos about Galaxy Nexus and the Windows Phone OS.

Here's how the tech specs match up.

Specs

HTC Titan

Samsung Galaxy Nexus

Screen

4.7-inch Super LCD

4.65-inch Super AMOLED HD

Camera

8 megapixels

5 megapixels

Display

800x480

1280x720 pixels

Battery

6.5 hours of talk time

unknown

Size

9.9 x 70.7 x 131.5mm

8.84 x 66.5 x 133.6mm

Processor

1.5GHz

1.2GHz dual-core

Storage

16 gigabytes

16 gigabytes

Price

$199.00

unknown

Carrier

AT&T only

unknown

Titan is noticeably wider than the Nexus, but it's not quite as tall. It also appears to have a better camera, but megapixels don't always tell the story on cameras. It's hard to truly measure these two when we know so little about the specifics of the Nexus, but the devices offer so much (like the gigantic screens) that it's hard not to compare them.

Ultimately, as it happens so often in these comparisons, the OS could be the deciding factor. Windows Phone vs Android could be a refrain heard more and more in the future as Microsoft continues to tweak their system.

Tell us in the comments if you are considering either of these phones or if you're sticking with your iPhone.

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