Everything is a "smart" device now. Companies desperately want you to buy a baby monitor that connects to an app so you can check the camera from the grocery store. It sounds great until you realize what you are actually doing.
It's an IP Camera in Your House
You are putting a cloud-connected, IP-based camera inside your home, aimed directly at your child. These devices are notoriously vulnerable to credential stuffing and brute-force attacks. If you reuse passwords, or if the manufacturer has a data breach, anyone on the internet can tap into that feed.
The Network Lag
Beyond security, Wi-Fi monitors rely on your router. If your internet drops, your monitor drops. If you are streaming a 4K movie in the living room, your monitor feed stutters. You don't want a buffering icon when your kid is choking.
The Solution
Buy a closed-loop, radio-frequency (RF) monitor. They don't connect to the internet, they can't be hacked from another country, the video feed is instant, and they never lose connection just because your ISP is doing maintenance. Keep it simple. Keep it offline.