CertiPhones online store was founded by five dedicated mobile phone experts. With the purpose of offering our customers the a first class shopping experience and premium quality products, all of our phones and tablets are meticulously inspected, anti-bacterially cleaned and submitted to 30-point diagnostic tests. Your satisfaction is our top priority and we would like to assure you that we offer a free replacement within 15 days if your device doesn't meet 100% of your expectations.