Yes, but there is no definite value, but the longer it is used, the more prone to read and write slower, data errors, file damage and similar problems, but do not worry, the life of flash memory is much longer than the life of other parts of the phone, and now most household flash memory particles have a life of about 3000 times, not every read and write will be used once, but all empty. Fill it all in again. 128 gigabytes of flash memory is written to 128 gigabytes of data only once in life, even if you empty the phone every day and fill it up, it will be enough for you to use for 10 years.