Canada has them, too, and they're great at restaurants. Great for tipping since they just hand you the device at that point with common percentage options on screen (or the option to customize it).
The American experience of server collects your card, comes back with two receipts, mental arithmetic to figure out the tip, write it down on the receipt, hand the receipt back, and server types in the tip amount just seems clunky in comparison.
In general, though, I carry cash for tips since I know those probably won't be taxed.
Maybe. I don't own a US card but heard of such stories.
But I can tell you that my German card is quite slow in Germany (not as slow as US transaction though) but blazingly fast in Sweden, Denmark, or France.
Canada has them, too, and they're great at restaurants. Great for tipping since they just hand you the device at that point with common percentage options on screen (or the option to customize it).
The American experience of server collects your card, comes back with two receipts, mental arithmetic to figure out the tip, write it down on the receipt, hand the receipt back, and server types in the tip amount just seems clunky in comparison.
In general, though, I carry cash for tips since I know those probably won't be taxed.