If you are looking for a high powered long lasting battery life smartphone with a record level of up to 6030mAH, Gionee M5 is undoubtedly the best pick for now.
According to the manufacturer Gionee M5 can last up to 4 days on a single charge and deliver up to 62 hourse with only 5% of charge which is an amazing feature rarely seen in an andriod smartphone.
Display: 5.5 inches AMOLED capacitive touchscreen
Processor: Quad-core 1.3 GHz Cortex-A53
Memory: 2GB RAM
OS: Android OS, v5.1 (Lollipop)
Storage: 16GB internal memory
Primary Camera: 13 MP
Secondary Camera: 5 MP
Audio Jack: Yes
USB Connectivity: Yes
Micro SD: Yes, Up to 256 GB
Battery: Li-Po 6020 mAh