I have bought this phone 1 year ago & till now it’s working awesome & very smoothly.
Specific area that you want to keep in mind to buy this phone.
Look:- Lenovo vibe K5 not has a very impressive look with stylish edges & big screen
Sound Quality:- You can feel rich experience of crystal clear sound with dolby atmos speaker
Operating System:- it has a latest OS of Marshmallow 6.0
Speed:- With 4 GB RAM you can experience an awesome speed
User Friendly GUI:- In Marshmallow 6.0 OS you can easily find out any apps & files
Sensors:- Graviatation, Proximity, Light, Gyroscope
Battery Life:- 3500 mah battery, Active Standby - up to 15.2 days, Talk Time up to 33 Hours
Camera:- 13 MP Rear Camera, 8 MP Front camera with selfie focus
Processor:- 64 bit helio p10 octa core
Special Features
Fast Fingerprint Sensor
Expandable Storage up to 128 GB