Amazon Echo Spot

Remove Bottom Plate. It's a sticker, thicker than you expect. Pry hard.

One T8 screw prevents the screen from rotating, remove this prior to twisting the screen out. Two T5 screws hold the electronics stack.

There is a Micro USB port hiding in the back under a plastic cover.

Attaching a USB cable to the port reveals a device that classifies itself as an "Android Device"

It is also possible by holding down all 3 buttons on the top to put the device into FASTBOOT mode. Lots more to explore here.

After removing the aforementioned T8 screw, press your palm against the screen and twist counterclockwise. Alternately, hot-glue the screen to the workbench, twist the back off, then remove the glue.

Disconnect Cables

Display Assembly

Note there is a camera and what appears to be either a light or motion sensor next to the camera.

Display module is round and glued to the cover glass

Logic Board

Chips

MediaTek MT8163V - Quad ARM Cortex-A53 System on a Chip

GOODIX GT5668 - Touchscreen Controller

Cypress CYW43569 - 802.11 a/b/g/n/ac Bluetooth 4.1

MediaTek MT6323LGA - PMIC

Micron MT52L512M32D2PF-107 WT D9SSF - 16Gbit LPDDR3 SDRAM

SK hynix H26M41208HPR - 8GB NAND