All four major U.S. carriers will release the Samsung Galaxy Note 4 on Oct. 17 and it looks like T-Mobile jumped the gun and has already shipped the phablet to some lucky customers.

Fans of Samsung's Galaxy Note phablet series are about to get the company's latest and greatest. The Galaxy Note 4 picks up where the Galaxy Note 3 left off. It features the same 5.7-inch screen as its predecessor, but is razor-sharp thanks to its Quad HD 2560 x 1440 resolution and high pixel density of 515 pixels per inch (ppi). In comparison, Apple's just-released iPhone 6 Plus includes a 5.5-inch 1920 x 1080 display and a pixel density of 401 pixels per inch (ppi).

AT&T, Verizon, Sprint, and T-Mobile have been accepting preorders for the Galaxy Note 4 and customers who preordered the phablet will receive it on Oct. 17. Some T-Mobile customers who preordered the smartphone have already begun receiving the device on their doorsteps. AndroidCentral forum members have reported that T-Mobile shipped their Galaxy Note preorders early, as evidenced by the image above.

As a reminder, the Samsung Galaxy Note 4 features an ultrasharp 5.7-inch Quad HD Super AMOLED display with a resolution of 2560 x 1440 and a pixel density of 515 pixels per inch (ppi). The phablet is powered by a 2.7 GHz quad-core Qualcomm Snapdragon 805 processor, Adreno 420 GPU (graphics processing unit), and 3 GB of RAM to provide a fast and fluid user interface without hiccups. The smartphone includes 32 GB of internal storage and a microSD expansion slot that will support up to 128 GB microSD cards to further expand its storage.

The Note 4's camera capabilities consist of a high-end 16-megapixel rear camera with OIS (optical image stabilization), autofocus, LED flash, 2160p video @30fps, 1080p video recording @60fps, and a 3.7-megapixel front-facing camera for video chat and selfies. It runs Android 4.4.4 KitKat and Samsung's TouchWiz UI. The handset also includes a fingerprint reader embedded in its home button, UV sensor to alert users based on the current UV index, and a heart rate monitor located below its rear camera. Samsung has included a large 3,200 mAh battery and just released a software update that significantly improves the phablet's battery life.

While AT&T, Verizon, and Sprint haven't begun shipping their preorders, customers only have a few more days to wait before they get their hands on the Samsung Galaxy Note 4. Let us know in the comments below if you've received yours early.