Microsoft lumia 950 XL is the phone that you should go for because it has 5 mp HD front camera & 20mp back camera, battery is of 3340 mAh last for 1 day or more with regular use.
It is lightweight only 165 gms, internal memory is 32 gb which is more than enough , snapdragon 810 processer which helps it function very smoothly with no lags, it is very fast, it has got 3 gb ram , looks good in white colour, v4.1 bluetooth , good headset, audio quality is amazing, display is just eye catchy, expandable memory is upto 200 gb.It is the best smartphone for 42k.Value for money.I would recommend everyone.