US unlocked devices player Blu Products announced its latest smartphone, focusing on its 5000mAh battery which offers up to three days use on a single charge.

Despite its bumper battery, the smartphone is only 8.4mm thick.

Powered by a 1.3GHz octacore MediaTek processor, Blu Energy XL has 3GB of RAM and 64GB of onboard storage. It also has a 6-inch full HD screen, 13MP rear and 5MP front cameras, fingerprint scanner and USB-C port.

“Blu Energy XL offers everything someone can ask for in terms of specs and performance in a high-end smartphone. All while resolving the single biggest problem smartphone users face today, which is battery life,” said Samuel Ohev-Zion, CEO.

The smartphone is available from Amazon at $299 unlocked, with LTE support on T-Mobile and AT&T networks.