They are not really competitive due to the high initial deposit or total balance requirements, as there are smaller banks that offer higher yields and no requirements. These products mostly function as an incentive for higher net worth individuals to maintain the relationship with their existing big bank.
4.15% is good, but there are better options, including with big banks like Bank of America (4.50% currently, though with an initial deposit requirement of $100k).
There's the old Google Pay app that got rebranded as Google Wallet.
And then there's a newer Google Pay app available only in the US, Singapore, and India. This is the one getting shutdown.
See also: https://en.m.wikipedia.org/wiki/Google_Pay
And a very helpful chart: https://en.m.wikipedia.org/wiki/File:Googlepayments.svg