Range. Remote controls reach a few meters. We-Vibe states up to 30 ft (about nine meters) with clear line of sight for Sync O and about six meters around it, and Lelo states up to 12 meters for Tiani 3. An app reaches as far as Bluetooth between the toy and the phone—and in long-distance mode, unlimited over the internet, as long as the phone the toy is connected to is nearby and online.
Speed. A physical button responds immediately and can be pressed without looking. An app requires the phone to be unlocked and the app to be open.
Discretion. A small remote control in a pocket is less visible than a phone being held out, but a phone also doesn’t draw attention at a restaurant. It depends on the situation.
Features. Devices almost always offer more patterns, custom patterns, and music control. A remote control usually only offers on and off, stronger, weaker, and pattern changes.
Batteries. A remote control has its own battery that also needs to work—either a coin cell, AAA batteries, or a built-in rechargeable battery. An app uses the phone’s battery.