Is a Wi-Fi or non-Wi-Fi baby monitor better?

It depends on your priorities. Across the reviewers and parenting communities we read, non-Wi-Fi (closed-circuit) monitors are repeatedly favored for reliability and security, since they can't be hacked over the internet and come with a dedicated parent screen that won't drain your phone. Wi-Fi smart monitors add remote viewing, phone alerts and sleep/cry tracking, but community threads frequently cite lag, disconnects and subscription costs as trade-offs.