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The average household credit card dept in the US is absolutely insane. 14.5K.

Actually it's less than half that, depending on the year and whom you ask $6194, $5589 (both 2021) $5221 (2022).

If I need to purchase anything online from multiple devices, it’s all set up. And I can also easily pay at terminals or at most place with just my Apple Watch. I love using my Apple Watch to quickly pay while entering a subway station or purchasing something at the store and keeping my phone secured in my pocket.

That's not unique to Apple Card. Any wallet supported car will do those things if locally supported.
 
And six months after every inquiry for a credit increase?
I believe six months is the minimum, yes. Personally, I wait every year, but a lot of the times it doesn't make much difference if there's no change in your personal income or how much you're using the card. For example, if you have a credit line of $5,000 on a card and you're spending $4000+ each month and paying it off each month in full, then you're more likely to get a credit line increase upon request as opposed if you're only spending $500 per month. And if you're yearly income suddenly goes up a great amount, it's a lot easier for you to get an increase. But remember, different card companies tend to be more liberal/conservative upon granting increases. Apple Card is pretty good, I think Bank of America is the best. Worst of all is Capital One, in my opinion. They are the stingiest of all. I've been with them for over twenty years (the longest of all my cards) and it has the lowest credit line. They simply refuse to give an increase unless you're spending 80-90% of the line per month.
 
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