Note that different model cams respond to loss of Wi-Fi differently at the moment. Some will record indefinitely with the correct time when jammed.
I actually have a wired intrusion detection system setup now that also runs through Home Assistant. If certain devices suddenly go offline, I can get local offline alerts about it. If several go offline unexpectedly I can trigger various kinds of routines, including alarms or sirens.
Note there are different kinds of jamming. Burglars currently are more often using deauth rather than true jamming and that’s fairly easy to overcome now, particularly with the Wyze cams using Wi-Fi 6 and WPA3 which isn’t susceptible to deauth attacks anyway.
Honestly, jamming isn’t really as easy or effective as most people fear. There are significant size, power and distance constraints, particularly if the criminal isn’t a friend/family who knows yours whole setup already so they need to jam everything.
Handheld jammers are too low power and low range to be really effective in covering jamming the entire Wi-Fi spectrum sufficiently to knock out a whole house in a typical suburban neighborhood. Though they could target a specific area of the property, other cameras on the property might record what’s going on. Also, give your neighbors a camera for Christmas. They can’t knock everyone out. Low power jammers can be powered by a car cigarette lighter, but they are again limited in their coverage.
Hmm, that’s not been my experience. I have purposely left Wyze cameras without Internet for much longer and had it keep recording. I tested this for somebody who wanted to put one in a distant Warehouse that would only have hotspot access. They wanted to make sure it would keep recording to the SD card even if it didn’t have internet except when they set it up and when they turn the hotspot back on to check it occasionally, sometimes not for months. It may depend on the model though. Sometimes firmware updates also change things over time. I haven’t noticed any that didn’t at least record under a different date and time stamp when they lose Internet for a long time. But it’s possible some might. However, you will never have to worry about 12 hours of jamming on the same camera. So even 12 hours is sufficient. Portable Jammers can’t last that long on battery. And portable ones have a small range That as somebody moves around the house, it’s likely to re-enable some of the cameras intermittently, or not cover them all. So even if some do cut off at 12 hours, that is more than enough time to keep recording. I would call that good news. 
The high powered jammer models that cover a wide enough range to be sure to jam every spectrum actually won’t work in a cars cigarette lighter since they use too much power. They also are not easily accessible like some of the low power portable ones.
These constraints make jamming fairly ineffective for the typical burglar. Most of the ones smart enough and rich enough to afford or create the right jammer and power source and such have better ways to get money than petty larceny at your house if you’re a stranger. If someone is using a high powered jammer against you, they almost definitely know who you are. They’re targeting you specifically. They’ve thoroughly planned this. No PoE camera is likely to make much difference because they’ll already know about that too and will likely target the routers/switches/Nas and everything else upon initial fast breach after they’ve already cut the cable/telephone/fiber wires and jammed satellite too to make sure no outside communication gets out before they get to the evidence first. If someone who knows you that well wants to get in undetected before they get out, there’s pretty much nothing you can do unless you are rich and have an on-guard small militia guarding your really large perimeter at all times and have a secret underground panic room bunker that would require something bigger than nukes to get to you.
I’m just saying, jammers are a legit, Moderate concern, but they’re kind of overrated for the average person’s concerns IMO since the portable ones have such limitations, and the high power ones are not easily mobile or affordable, especially to anybody desperate enough with low impulse control who are usually doing a burglary which is mostly impulsive & drug fueled. Most addicts will sell the jammer for some spare cash. 
Bigger dealers wouldn’t bother.
Most burglaries are already family, friends, acquaintances or nearby neighbors. Then there is crime of opportunity. Most of the above her way more likely to use deauth or If they are using a portable jammer it will still be during a quick snatch and run, which a Wyze Cam would still record to SD card. I, personally, would also get an alert that I’ve been jammed and Wyze devices went offline. I could even trigger alarms while jammed. But almost NOTHING can be done for someone talented specifically targeting you though. Not even PoE., etc.
Having said that, I’m pretty shocked that wyze hasn’t come out with a pro model that includes PoE natively (And preferably rtsp as well). I personally think they should have a model with that as an option. It doesn’t have to be their flagship model or anything. But they should have one. They seriously just need to make an all-in-one cam that has most of the features everybody’s been begging them to do for years. Even if it’s more expensive. They need at least one. I’m guessing they won’t even consider something like that until the matter camera libraries are out though. So, we’re unlikely to see anything like this until 2026 at the earliest in my opinion. Still, it would be nice.
.
