You might check out the MOTO E4 or the MOTO E4 plus for a little more if possible. Take a look at the video by @glockman4519 I've linked below. I give him credit for this find. I've been following him for some time now and very much respect his reviews and insight. If he says it's a good purchase for the price, then it most likely is. I will be looking into it myself .
They both come with Android 7.1.1 and will get Oreo as Motorola devices usually keep up with updates almost as fast and in some cases faster than Google devices.
The E4 is the smaller of the 2 and if purchased at Walmart it Amazon can be had for under $50.00, usually well under that price. It has the removable battery and a 5 inch 720p screen. It also has a front facing speaker along with the lower speaker and video audio playback is quite good.
The E4 plus comes with the 5.5 inch 720p screen and also has the same speaker set up and is also pretty loud. It has the 5000 milliamp battery and that thing lasts a long time. It has everything the E4 has plus the bigger battery, larger screen and a little better main camera.
They will both take video up to 1080p (no 4k) and both have that front and rear flash.
Thank you for the kind words and for following my videos. They are long and mostly unedited but the reason they are long is because I like to be thorough.I would recommend both devices for anyone looking for a quality device that are in a budget.
Here is the video on the E4 plus, I also show the difference between the 2 devices in this video.