I am using Lenovo Vibe P1m .And this phone is really good at this Price Range.It has 2GB Ram, Quad Core Processor, 16GB Internal Memory, 32 GB Expandable Memory, 5 MP FRont Camera, 8 MP Back Camera, Accelerator and Proximity Sensor, FAst Battery Charging Capabilty, And Really looooong Battery Life.Using it for like 6 Months and still no lags, no errors.Definitely recommend this Product.Lenovo p1m is the best Product I Ever Used.