Panasonic Eluga Ray X is a excellent product from Reputed Japanese Brand. It has all the high end features which are available in smartphones above 15000 Range.
Pros:
Arbo Assistant which is based on Artificial Intelligence and helps in day to day tasks.
3GB RAM. Which makes its speed very fast
4000 Mah Battery. Which can survive easily for 2 days with normal usage.
Front Fingerprint Sensor. This feature in this range is provided by Panasonic only. Other companies provide back fingerprint sensor.
13 Megapixel camera helps in shooting amazing pictures and videos. 5 Megapixel front camera is also very good.
Dedicated Slot for Sims and Memory card as Hybrid slot is very inconvenient.
Cons
its Bit heavy
Fixed Battery
Overall its a great value for money phone.