Why it's worth it
The Series 7 gets you a 360° flexing head, three shave modes and Braun's SmartCare cleaning station without the top-tier price. Good Housekeeping's blind testers found it matched the Series 9 on skin comfort, which is the spec most people actually care about.
Comfort is where the Series 7 punches above its price. Good Housekeeping Institute's blind testers scored it level with the Series 9 for skin comfort in head-to-head trials. That's a striking result, because comfort is the reason most men give up on electric shaving in the first place. You give up some closeness and some power against a heavy beard — but not the thing that makes shaving pleasant.
The 360° ContourFlex head is the practical upgrade over cheaper Braun models. It tilts and swivels to stay flat against your jaw and neck, so you're not pressing harder to make contact. Pressing harder is exactly what produces razor burn. The SkinGentle foil and the SmoothShave blade handle hairs that have grown out a few days without yanking them.
From our review of 8 electric shavers for men, by Eleanor Vance, Health & Beauty Editor