Polygon
Polygon charges its gas in neither ETH nor a stablecoin. It charges in POL, the coin formerly called MATIC. That renaming is still working its way through the industry, and it is the main thing that trips people up here — the network is the same one, the ticker is not.
POL is what MATIC became
The native coin was renamed from MATIC to POL. Balances, addresses and history are unchanged; only the symbol is different. This wallet shows POL, and an exchange that still says MATIC means the same asset.
The fee you do not hold
Every Polygon transfer costs POL. Holding only USDT here would normally mean buying a small amount of POL before you could move it. The fee is settled inside the operation instead.
What lives here
USDT, USDC and POL. Polygon is a working stablecoin chain in this wallet rather than a place to keep a portfolio.
Related
Questions
Is POL the same as MATIC?
Yes. The native coin of Polygon was renamed; the network and your balances are unchanged.
Do I need POL to send USDT on Polygon?
No. The POL fee is paid inside the operation, in the token you are sending.
Is Polygon USDT interchangeable with ERC20 USDT?
No. Same dollar, separate credit — moving between them is a transfer.