Lenovo k6 power. Lenovo made this name for powerful battery of this phone. this phone have a 4000mAh battery. If you use nonstop this phone it takes 8-10 hour to come 100% -2% . phone will shut down in 2% . And this phone have a super camera. The Both camera is verry good in Day and Night. In this phone lenovo use a wonderful processor. All other features are extremely good.i am using this product right now. Phone is awesome but earphone is very bad, Sound quality and product quantity is very nice . this phone have some littel software issues too.