Two major U.S. carriers -- AT&T (NYSE:T) and T-Mobile (NYSE:TMUS) -- have announced, on late Thursday, the early October availability of the new Samsung (KRX:005935) phablet, the Galaxy Note 3, on their networks.

AT&T has started taking pre-orders for the Galaxy Note 3 with an expected shipping or release date of Oct. 1. The carrier is offering the new phablet with a price tag of $299.99 on a two-year contract and $35 a month with AT&T Next. The Galaxy Gear smart watch will also be released on the carrier in coming weeks.

While T-Mobile has not yet started taking pre-orders for the Galaxy Note 3 (click here to sign up for an alert), the carrier has announced that it will launch the handset, along with the Galaxy Gear on Oct. 2. The Note 3, on T-Mobile, can be had for a $199 down payment and 24 equal monthly payments of $21, while the Galaxy Gear will cost $299.99.

Meanwhile, Verizon (NYSE:VZ) announced, on Wednesday ,that it would begin accepting pre-orders for the Galaxy Note 3 at 6 a.m. PDT on Friday, Sept. 6. However, the carrier did not say when customers can expect the shipments to take place.

In the U.K., carrier EE said that it started taking pre-orders on Thursday for £149.99 plus £41 a month for a 24-month plan. The Note 3 will also be available 4G-ready on Orange U.K. and T-Mobile U.K. plans for £42 a month on a 24-month plan, with an upfront cost of £119.99 and £139.99 respectively, Android Central reported.

The new Samsung Galaxy Note 3 features a 5.7-inch full HD (1080×1920) Super AMOLED display with a pixel density of 386 PPI, Android 4.3 Jelly Bean mobile operating system, 2.3GHz quad-core Snapdragon 800 processor and 3GB of RAM. The device sports a 13 megapixel camera, 4K video recording support, Wi-Fi 802.11ac, Bluetooth 4.0, microSD card slot, 32GB memory and a 3,200mAh battery.

On the software front, the Galaxy Note 3 features the latest TouchWiz UI along with improved S Pen support, Air Command: Action Memo, Scrapbook, Screen Write, S Finder, Pen Window, S Note, Easy Clip, Direct Pen Input, WatchON and Samsung Hub among others.