Battery life. A good camera will have a standby time of months and will do heavy image processing for days on one charge. And that's a key feature. It's also on

Battery life. A good camera will have a standby time of months and will do heavy image processing for days on one charge. And that's a key feature. It's also one of the reasons most people quickly turn off features like GPS and WIFI in their cameras. They're relatively useless and a massive battery drain. But yes, it could still be made better by waking up the radios fast and having e.g. reasonably smart tethering based on an open de facto standard spec that would be only woken up when the camera is switched "on" (which is mostly a key lock in many cameras, not a boot up).