Bitcoin and Tether are different types of cryptocurrency.bitcoin is a peer-to-peer digital currency governor by any financial institution. Tether is a stable coin, it have same value of the us dollar. That's why it is less volatile than Bitcoin, it can also be use for trading on exchanges or it can be stored value. Both have their potential of Bitcoin and Blockchain technology are endless. It's a stable coin backed by us dollar, Both have their unique advantage. How well do you trust Tether stable coin?
The difference is very obvious, Bitcoin is decentralized with no central authority while Tether does. And as for USDT though, sometimes it can de-pegged to the US dollar that might cause a bigger problem in the future. And Tether has been accused of running in fractional reserves similar to back,
https://cointelegraph.com/news/fractional-reserve-stablecoin-tether-only-74-backed-by-fiat-currency-say-lawyersThe company behind USD stablecoin Tether (USDT) only has enough cash to back three-quarters of its increasing supply, its lawyers confirmed in documents released on April 30.
As part of an ongoing legal process involving the New York Attorney General, Zoe Phillips of law firm Morgan Lewis said that at the time of writing, 74% of Tether’s reserves had USD and equivalent backing.
The figure falls short of previous promises given by Tether executives, specifically that every USDT token had full fiat backing, something a bank statement appeared to confirm in December last year.
“In fact, Tether’s reserves of cash and cash equivalents alone (without the line of credit) would cover approximately 74 percent of the outstanding amount of tether,” Phillips wrote.
So that is a huge issue with Tether, others might have argued that this is old news, but still it persists till this very day. And as compare to Bitcoin, we will not have this issues as we don't have fake
BTC, and everything is in the blockchain for everyone to see.