At range 17900 the f1s give following specification like .
Con-
#4gb of ram with 64 gb rom expandble up to 128 gb
#5.5 inch hd display with gorila glass protection
#13 mp real camera .and 16 mp front camera
#3075mah battery
#good for normal user at this specification
Con -
Bad mediatek mt6750 processor
Battery backup
Not a full hd display
No fast charging option at this range