I review home security cameras for a living — here are the 9 best Prime Day deals I would get

Blink Outdoor (3rd gen): was $99 now $49 @ Amazon
Our favorite budget outdoor security camera is currently 50% off in this early Prime Day deal. The camera runs on two AA batteries that will last for up to two years, and you get very good 1080p video for the price, as we found out in our Blink Outdoor review. You will need a Blink subscription ($3/month) if you want to use all of the camera's features, but otherwise, this is a great option for a cheap security camera.
You can also buy two Blink Outdoor cameras for $79 on Amazon, which gets you an even greater discount of 56% off. 

Blink Wired Floodlight Camera: was $99 now $49 @ Amazon
This camera is basically the same as the Blink Outdoor, but built into a housing with two 2600-lumen lights, so you can get a nice bright view of what's going on outside, day or night. This camera needs to be hardwired in order for it to work, but it's a great deal if you're looking for a cheap outdoor security camera.

Nest Cam (Battery): was $179 now $119 @ Best Buy
Our favorite outdoor security camera overall, the Nest Cam is currently $60 off in this Best Buy deal. One reason we gave the Nest Cam (Battery) such high praise was its excellent video quality, great battery life, and the fact that you get person, package, and vehicle detection for free — something that many other companies charge for. Of course, you will have to sign up for a subscription ($6/month) if you want to save videos, but the price could be worth it.

Eufy eufyCam 2C Pro: was $319 now $179 @ Amazon
One of the hidden costs with many security cameras is that you need to also pay for a subscription to use all their features. Not so with the eufyCam 2C; this camera gives you person detection and video storage included. And, with a 2K resolution and night vision, you'll have a clear view of everyone. These wireless cameras also can last up to six months on a charge, too.

Arlo Pro 4 Spotlight Camera: was $199 now $110 @ Amazon
Arlo makes some of the best outdoor security cameras, and the Arlo Pro 4 is no exception. It delivers 2K video, HDR, and color night vision, and has a built-in spotlight to help illuminate things at night. This deal shaves $89 off its regular price; there are also deals on 2- and 3-camera packs, but the 1-camera deal offers the greatest discount. You will need an Arlo subscription (starting at $4.99/month) to get the most out of this camera, though.

Nest Cam (wired): was $99 now $69 @ Best Buy
If you're looking to stay within the Google ecosystem, the Nest Cam (wired) is a great indoor security camera. You can read our Nest Cam (wired) review, but the tl;dr is this: It delivers excellent video quality, will record up to three hours of video even if your internet goes down and gives you person detection without a subscription.
Check other retailers: $69 @ Amazon

Blink Mini: was $34 now $17 @ Amazon
If you need a basic security camera to keep tabs on things inside your home, you can't get much cheaper than the Blink Mini, which is currently on sale for 50% off its regular price — and the biggest discount we've seen on this camera. This camera delivers 1080p video, two-way talk, night vision in a small package. Read our Blink Mini review to see if this is right for your needs. 

eufyCam 3 2-Cam Kit: was $549 now $379 @ Amazon
The eufyCam 3 has a clever feature: Solar panels built into the lights themselves, so you don't need to worry about recharging them nearly as often. These cameras deliver 4K resolution, face recognition, local storage up to 16GB (though you have to supply the hard drive) — and best of all, no subscription fees.  

Arlo Pro 5S 2K XL (3 Pack): was $799 now $399 @ Amazon
If you're looking for the ultimate in home security cameras, you can't do much better than this. The Arlo Pro 5S 2K XL has a 2K camera resolution, a built-in spotlight, color night vision, a 160-degree field of view, and a rechargeable battery in each camera that will last up to 12 months on a charge. This 3-camera deal shaves 50% off the regular price.