If it is a slogan of zero interest, merchants will often ask you to pay various service fees and handling fees. There will be a series of fees, which may be higher than interest. It is also possible to lower the price of mobile phones to deceive consumers, but often this kind of low-priced mobile phone seller will ask you to pay back at the designated loan platform, and these loan platforms may charge high interest and other fees. So everyone should understand the relevant routines. If you don't have money, don't buy a mobile phone by stages to avoid being cheated.