The longest Prime Day ever is officially underway (through July 11) and as per usual, Amazon has discounted its own devices to some extreme lows. While we haven't been super impressed by the Echo deals, things like Kindles, Fire tablets, and Fire TVs are seeing their best prices ever by a long shot.

With these Wirecutter-approved picks under $100, you don’t have to spend a lot to get a good deal this Amazon Prime Day.

Here’s what to know if you want to score Amazon Prime Day deals on a variety of emergency essentials to save big on updating your hurricane kit.