BLUBOO X550 5.5 inch 4G FDD-LTE 5300mAh Android 5.1 Smartphone MTK6735 Quad Core 2GB 16GB IPS HD Miracast - Black. BLUBOO X550 is the first 5300mAh Android 4G smartphone, not only the battery, but also better battery management solution, get rid of the shadow of "low battery" with X550. OTG extended, work with flash disk, mobile HDD and more! transform to be a big mobile power bank to charge your other digital devices. Equipped with MTK6735 64bit chip, performs better and less power consumption. Dual band WIFI 2.4G/5G, Bluetooth 4.0, quicker connection and more convenient. GPS, AGPS, GLONASS global positioning system. Android 5.1, the best experience for android so far! Buy this Smartphone and Save $9 Off for BLUBOO X550 Smartphone. With coupon code: BLUBOOX550 at checkout.