The contract price belongs to the futures range and is the closing price of the last day, which is the contract price. For example, a contract is for one month, and the closing price on the day it ends is the contract price.
The contract price of a mobile phone is the purchase price after you sign the contract. Generally, the contract (agreement) here in the United States is 2 years. After you sign a mobile phone contract, you cannot sign other mobile phone contracts until the contract expires.