band too loose on my Apple 7 watch

What type of band is it? Perhaps you can exchange it for a smaller size at an Apple Store or wherever you bought it.

Buy Apple Watch Bands - Apple

I think you mean the band is loose and wiggles from the socket on the watch body and not around your arm. If so i have the same issue with my new watch 7 41mm, visited apple store and they checked other watches on display and apparently they all have the same issue, however they offered me to replace the band with a new one, which i should receive in a couple of days.

Have an Apple Store near you? Take it there and exchange it. Otherwise click on the Get Support link at the top right of this page to start the exchange process.

You can see here in the corner the gap between the band and the watch.

The corner gap is normal and has always been there. I checked mine before I answered. I don’t believe they were saying the connectors were loose,.