One+ is become very popular now a days bcoz of latest flagship phone oneplus 5t launched by one+ . customers can buy tis smartphone from online market ike amazon.in, flipkart and many more. we all know one+ is a new company but very good in customer service. They give security updates every month and the latest android os Oreo has given now to one+ 5 and 5t. Charges are a bit include able but not very much .as we know that it is a flagshio phone below 50 thousand indian rupees but full of facility.