Should I buy the Sony WH-CH720N or JBL Live 660NC?

Choose the Sony WH-CH720N if comfort and low weight matter most. It’s very light for an over-ear noise-canceling headphone at 6.8 ounces, and it also uses Bluetooth 5.2.

Choose the JBL Live 660NC if you want wired listening in addition to Bluetooth and prefer a more robust-feeling headphone. The comparison material also suggests its sound is very good.

Noise cancellation is broadly similar between the two, so the decision mostly comes down to fit and feel: Sony for lighter all-day wear, JBL if wired use is important to you.