One issue with smartphones in 2015 is that they continue to get thinner and thinner. While the phones look sleek, they lack in one of the most crucial categories: battery life. Smartphone manufacturers are sacrificing battery life for thinness. The good news is that there are companies out there that take battery life seriously, just take a look at the Oukitel K10000.

Pre-order the Oukitel K10000 at GearBest only

Oukitel is going against all the rules and standards set by Samsung, Apple, etc. in 2015. Instead of making the device amazingly thin, they went the opposite way. That’s why the OUKITEL K10000 comes with a massive 10,000 mAh battery. To give you perspective, the Note 5 comes with a 3,000 mAh battery and the Droid Turbo 2 comes with a 3,760 mAh battery. At the end of the day, the device is still only 9 mm thick, which is pretty impressive.

There is one main point for this phone, and that is to last. Alongside the massive 10,000 mAh powerhouse is a 5.5 inch 720p display, a 64-bit MediaTek MTK6735 processor clocked at 1.0 GHz, and 2 GB of RAM. This phone will definitely offer the best battery life period, by far. A low-clocked CPU with a 720p display will definitely offer up 10-15 days of normal usage no problem.

Not only does the Oukitel K10000 feature the world’s largest battery in a smartphone, but it charges completely in 3 1/2 hours. Getting 10+ days on just over three hours of charging is pretty remarkable. To top it all off, the Oukitel K10000 supports charging other devices, so it can be used as a power bank as well.

The device is now up for pre-order over at GearBest for only $239.99 and comes with free shipping. If you are in the market for a device is more function over form, then you found your next phone. In all honesty, the device doesn’t even look bad. Hopefully the Oukitel K10000 creates enough of a stir for other OEMs to notice that consumers want battery life.