Letv 1s is a good phone at this price and if you are looking for a budget phone that adds premium touch.
Full metal body loaded with a 13mp rear and 5 mp front camera and in my opinion for a normal user of India letv 1s is a good choice.
Camera allows you to shoot 4k as well as slow motion videos which is good at this price and now about its fingerprint sensor, yes phone have a accurate finger print sensor as well and the sensor can unlocks your phone in record 0.16 seconds. 1s is loaded with Heliox10 octa core which is a good processor for playing high end games like GTA, mc5, asphalt.
But there’s a problem in the processing as well heliox10 processor is reported to heat the device very quick that really don’t effect much and you will not feel much heat only in back side because of metal.Now about ram, Letv or now Leeco 1s have 3gb ram and 32 GB ROM out of which 1.9 GB ram is free in first boot and 24.9 GB ROM is free in first boot. Phone also supports fast charging and the company gives you a C-type USB which can charge its 3000mAh battery in 90min. Now about disadvantages there’s no SD card slot in phone means you are limited to 32gb storage but it supports otg as well as virtual headsets/devices like antvr etc.