T-Mobile is currently offering the LG G4 at a significant savings from its usual price. You can also score a free second battery with charging cradle and limited-edition leather back cover if purchased by July 31.

LG has been stepping up its game in the smartphone world as it tries to compete with its largest rivals, Samsung and Apple, in the high-end smartphone market.

While Samsung has abandoned two of the biggest features it used as a way to claim superiority over Apple's iPhone lineup for years, its current flagship Galaxy S6, S6 Edge, and its upcoming Galaxy Note 5 and Galaxy S6 Edge Plus no longer allow users to expand memory via a microSD slot or swap out batteries. Thankfully, LG has kept both popular features in its latest and greatest LG G4.

If you're in the market for a new smartphone and wouldn't imagine giving up expandable memory and the option of replacing a depleted battery by simply opening its rear case, T-Mobile has a deal you might want to consider. The carrier is offering its LG G4 at a significant savings over what it normally charges for the device and if you purchase the smartphone by July 31, LG will give you a free second battery, battery charging cradle, and premium limited-edition leather back cover in choice of five colors. The carrier normally charges $599.76 for its LG G4 but has cut the price to $479.76.

The T-Mobile LG G4 features a gorgeous 5.5-inch 2560 x 1440 IPS Quantum Quad HD display with improved resolution, contrast, brightness, color range, and a pixel density of 538 pixels per inch (ppi). It's powered by a quad-core Qualcomm Snapdragon 808 processor, Adreno 418 GPU (graphics processing unit), and 3GB of RAM. The handset includes 32GB of internal storage and a microSD expansion slot that supports up to 2TB microSD cards.

The G4's camera capabilities consist of a high-end 16-megapixel rear camera with laser autofocus, OIS (optical image stabilization), LED flash and 8-megapixel front-facing shooter for video chat and selfies. The G4 ships with a large 3,000 mAh removable battery, making it one of the only flagship Android smartphones on the market that allows users to swap out its battery.

If you're interested in this deal, head over to T-Mobile's online store where you can score the LG G4 and free extra accessories for $479.76.