Amazon Fire HD 10 Tablet (2021 Model): 64GB $115, 32GB Expired

This turned into a massive wall of text, so I'll just summarize up top here: this is a fantastic deal, but it requires significantly more effort to set up than a standard tablet. If you're interested feel free to read on, but if reading the following sections seems like too much effort you would probably be better off avoiding a fire tablet.

This is actually a great deal, in spite of what some other people have been commenting, though with several caveats. Firstly the user experience out of the box will be terrible, if you're not willing to get more in depth setting up a fire tablet and modifying it, either manually through adb shell commands or using the fire toolbox which I highly recommend (more on that later), you should not purchase a fire tablet. Sideloading google play is an absolute must as the amazon appstore is awful. That being said, the hardware and performance of the fire hd 10 are unrivaled at this price range and can easily match tablets 3 times their price. I got the Fire hd 10 32gb 2021 during the last prime day sale when they were ~50% off and have been using it every day since, with the appropriate modifications it's more than sufficient for everything I've ever needed a tablet to do.
So far there have been no issues whatsoever with build quality or damage, even after constant heavy use. I have not had any issues with app incompatibility or the device being too under-powered for apps (the processor and amount of ram are exceptional for the price), the screen while not astounding is 1080p fhd with decent brightness and color, and the battery life is astoundingly good. The low internal memory (32gb) isn't an issue since you can add up to a 1tb microsd card, more storage than you will ever need on an android tablet. On a side note fire tablets on the current fire os (7.3.2.1 as of this post) only support the fat32 file system format for a microsd card rather than the newer exfat standard. While this doesn't have a very significant effect on general performance, it does mean you can't store individual files over 4gb in size on your fire tablets microsd card. This should be a non-issue for everything except locally storing 1080p or higher tv shows or movies, but in that case you can simply re-encode in a more efficient format, or split those files into 4gb segments.
Most of the time when people are complaining about poor performance on a fire tablet there are two primary causes: they haven't disabled the amazon bloatware that runs in the background, and they haven't changed the developer settings for window animation scale, transition animation scale, and animator duration scale to .5x (from the default of 1x). Without altering those three developer settings from default all animations and transitions on the tablet, such as swiping something to a side or opening an app take twice as long, making the tablet seem far slower than it actually is. Likewise leaving amazon bloatware running in the background consumes a significant portion of the tablets 3gb of ram, with all the bloatware disabled my tablet averages over 1.6gb of ram free, which is insanely good for a tablet in this price range.
By far the worst part of a fire tablet is the "Fire OS", a modified amazon version of android 9.0 pie. Android 9, while certainly not the latest and greatest, is still perfectly serviceable, but the obnoxious amazon modifications to the OS are horrendous. Disabling all the packaged bloatware is a must, and some useful features and settings of the os are hidden. These features can still be accessed with adb shell commands (and through the fire toolbox, which I'll discuss later), but this is obviously far less convenient than setting up a normal tablet. Funnily enough the best way to use this tablet is to avoid using anything even slightly amazon related on it. Most of the amazon apps and features are interlinked in the os making debloating much more difficult if you still wish to use amazon features, but if you don't need any of the amazon crap you can nuke it all into oblivion for a mostly vanilla android experience. If you avoid registering your tablet, highly recommended, you get no lockscreen ads and a lot of the amazon "features" don't run even without properly debloating the tablet (though you should still debloat anyways). To avoid registering the tablet make sure when purchasing to uncheck the checkbox asking something along the lines of linking the device to your amazon account.

Overall, as noted above, the fire tablet is great once properly set up, but if you had to do all the setup manually in command line I would not recommend a fire tablet to anyone. The saving grace of fire tablets comes in the form of a third party tool called "Fire Toolbox", made by Datastream33 at XDA forums. This is the link: https://forum.xda-developers.com/...0.3889604/
The fire toolbox lets you to easily modify your tablets hidden settings and disable amazon apps with a gui rather than command line, and you can find tutorials on how to properly set up your fire tablet on the homepage. It functions through adb (android debug bridge) and does not modify the system partition, meaning all changes can be reverted with a factory reset and it does not void your warranty. Hopefully this atrociously long post (and I was holding myself from adding more details, my ocd brain wanted this to be like 3x as long) is helpful to someone, have a good day/morning/evening.

I recently got one on the HSN deal and I love it. Use it daily as a streaming device and have seen no lag issues with Hulu, Netflix, HBOmax, YouTube TV.
Fire Tool Box really is needed to get the best experience out of these to put a custom launcher, remove adds, Amazon lost, ect.
https://youtu.be/Z9vwFKoFcLo

Oh no, I paid $5 more for this tablet!

By the way, Fire tablets, including this new one, are still junk. Even with Play store installed and AMZ crap removed. Just so clunky. It feels like there is a...pause...for...every...action.