S888: A 4G smartwatch that runs Android and has built-in GPS
The S888 is, visually at least, an Apple Watch clone. However, the similarities end there as the S888 runs the outdated Android 7.0 Nougat and the even older MediaTek MT6737 SoC. MediaTek manufactured the quad-core chipset on a 28 nm process, for reference.
Additionally, the smartwatch has 3 GB of RAM, 32 GB of storage and a 1.88-inch display that resolves at 320 x 385 pixels. The display is a touchscreen, but the S888 also has hardware buttons should you wish to use those instead. According to the manufacturer, the S888 supports 4G, GPS and has an 800 mAh battery that should last up to 2 days between charges.
The S888 is supposedly IP65 certified and has two cameras, of which one supports 2D face unlock. The S888 is currently orderable from AliExpress and Inoava, should you be interested in a cheap smartwatch with a large display running full Android. The S888 costs US$126.16 on AliExpress and US$167.38 on Inoava.