How is the Wave SE different from the standard Wave?

The SE is the simpler version: it keeps the oscillating-pulsating sonic motion and app support but trims the handle controls and extras of the full Wave. It is aimed at buyers who want the core brushing tech without the flagship add-ons.

Do I need the app to use it?

No. It brushes with its built-in settings, and the 2-minute timer works on its own. The app is where you adjust modes and see brushing data, so the toothbrush is usable without a phone but less customizable.

What comes in the box?

The toothbrush, a charging cable and two soft-bristle brush heads. Replacement heads are sold separately.

Is it good for sensitive gums?

The included heads are soft bristle, which suits sensitive gums, and the app lets you pick gentler modes. Start on a lower setting if the oscillating-pulsating motion feels strong.

How does it compare with Sonicare and Oral-B brushes?

It combines sonic vibration with oscillating-pulsating movement, similar in spirit to Oral-B's rotation-oscillation but with sonic elements. Its edge is app control; Sonicare and Oral-B offer more on-handle modes and wider head availability.