for: keeps an eye on the house
locks, doorbells, and cameras compared on the boring stuff that decides whether they work: resolution, power, local storage, and which ones charge you every month to see your own porch.
Dash Cams
Dash cams compared on the resolution they record against the resolution their image sensor can physically see, plus the sensor itself, the second channel, whether power backup is a supercapacitor or a lithium battery, and what parking mode actually records.
Smart Locks
Smart door locks compared on what actually differs: how you get in, whether the Wi-Fi is built in or needs a bridge, Matter support, rated battery life, and the security grade.
Video Doorbells
Smart video doorbells compared on what actually differs: resolution, field of view, battery vs wired, and whether they record locally without a subscription.
Wireless Security Cameras
Wi-Fi home security cameras compared on what actually decides how they perform and what they cost to live with: how sharp the video is, how wide a view they cover, how they are powered, whether they record locally without a monthly subscription, whether their night vision is in color, and how weatherproof they are.
other situations
small apartmenttravels with youhas petsrenter-friendlyquiet enough for callsgifts that don't suckworks from homehas a yardroad tripsgames a lotworks out