Adding one thing - Agree on skipping Wi‑Fi; if reliability is the goal an audio‑only DECT monitor often cuts through floors best and the parent unit can last well over a full day in VOX mode. For video, pick a 2.4 GHz FHSS model with a screen‑off/VOX setting and, ideally, an external antenna to stretch both range and battery. For outages, plug the nursery camera into a small UPS or a passthrough power bank so it stays on while the handheld runs from its own battery.
Clean the card and slot contacts with a soft cloth, then test with a friend's card to pin down whether the card is worn out or the camera is at fault. If it points to the camera, check your warranty.
What helped me was adding small speed bumps instead of bans. I set a bedtime mode that hides social apps turns the screen grayscale, and adds a 30‑second delay before those apps open; that pause usually breaks the impulse. I also moved my charger across the room and added a 10‑minute app limit as a backstop, so overriding it means physically getting up.
