With the announcement of the Samsung Galaxy S4, get ready to see price drops on some of the most popular Android smartphones on the market. T-Mobile might be trying to make room for its Galaxy S4 inventory by offering the Nexus 4 for $49.99 for a limited time.

The Nexus 4 is Google's current flagship smartphone and it has the specs to match. The Nexus 4 features a 4.7-inch WXGA (1280 x 769) True HD screen, Android 4.2 Jelly Bean, Qualcomm Snapdragon S4 Pro 1.5GHz quad-core processor, 16GB internal storage, 2GB of RAM, 8-megapixel rear camera with LED Flash, 1.3-megapixel front camera, Wi-Fi, HSPA+ radio, Bluetooth, NFC and a 2,100 mAh battery. The smartphone also supports wireless charging out of the box.

All Nexus smartphones and tablets are desirable for many reasons, and one of the biggest reasons consumers have snapped up Nexus devices is that when you buy a Nexus you're also buying upgradability. All Nexus devices receive Android updates directly from Google. There's no waiting for carrier approval for Android updates, as is the case for other Android smartphones and tablets.

Nexus devices are also popular because they ship with a stock Android experience, the way Google intended it to run. Nexus devices also come with the best specs because they are designed and created by Google to provide the best hardware to run Google's latest version of Android. In other words, you're getting a solid smartphone now and in the future with the Nexus 4.

The Nexus 4 is expected to be upgradable to Android 5.0 Key Lime Pie when it's released, just as previous Nexus devices received Android 4.0 Ice Cream Sandwich and Android 4.1 Jelly Bean after Google announced both updates to its Android OS.

T-Mobile is only offering this deal through its online store for a limited time. T-Mobile is also waiving its usual $35 activation fee and offering free shipping on the Nexus 4 for $49.99 when signing a new two-year contract.