I bought the watch about six months ago, but had to return it. It wouldn’t work with my six year old but trusty iPhone 6+. I just couldn’t cough up the dough for a new phone AND a watch.
I had an iPhone 6 and then a 6s, which I loved and kept until this year. Aside from the soaring prices, what kept me from upgrading was that the phones just keep getting bigger, and I want it to fit in my pocket (which is why I also held onto the 4s for so long before my 6).
What finally convinced me to upgrade was the 2020 version of the iPhone SE. Its the best bargain in years. Has the same processor as the 11 pro, but in the design and size of my 6s, and also has a much better camera that comes close to the quality of the iPhone 11s camera. And its only $399 (though I paid $449 to get 128 GB of storage).