WBTC is different from 0xBitcoin.

0xbitcoin was a crap coin that being created when tokenization for the existing asset in crypto market has become a trend a few years ago. WBTC totally backed by the real bitcoin and that makes the price of WBTC will be 1;1 with bitcoin.

https://coinmarketcap.com/currencies/0xbtc/markets/

https://coinmarketcap.com/currencies/wrapped-bitcoin/
You can check it directly.