When our first child was born, we found ourselves doing something familiar: picking up a phone to stay available, then getting drawn into everything else on it. We wanted to answer family and friends. We didn’t want every call to come with an invitation to check messages, news, and work.

That tension isn’t just ours. In a 2025 randomized trial published in PNAS Nexus, researchers blocked mobile internet on participants’ smartphones for two weeks while leaving calls and texts available. They reported improvements in sustained attention, self-reported well-being, and mental health. The experiment tested a short break from mobile internet, not a home phone, and doesn’t tell us what would happen over years. But its setup makes a useful distinction: being reachable and carrying the internet everywhere are not the same thing.

Another eight-day randomized study of 338 Gen Z participants found that restricting smartphone-based digital media was associated with improvements in several self-reported measures of well-being compared with control groups. Restricting social media alone produced fewer benefits. That short study cannot explain every family’s experience, and it isn’t evidence that any particular product will change someone’s life. It does challenge the idea that every kind of screen time is interchangeable.

Family attention is harder to measure. Research on technology interruptions in parent-child interactions has found associations with reported child behavior problems. An association isn’t proof that a parent’s phone caused a child’s behavior; families face many pressures, and the relationship may run both ways. We don’t need a medical claim to know what we want in our own home: more time looking at the people in it.

What that means for Fen

We aren’t asking anyone to give up a mobile number or stop using a smartphone. We want calls to have a place apart from the rest of the phone. Fen Phone is designed to bring those calls to a shared receiver and bell. Different rings identify whose mobile is receiving a call, and a physical quiet switch gives the household a way to pause the bell.

It’s a small, practical separation: keep the connection, leave the feed elsewhere. Explore the Phone and hear the ring previews.