I use an Onyx Boox Nova 2 for epub books and web browsing which it's great for as a fully featured Android tablet, but it's not that great for A4-sized content with its 8" screen. However the same company also has the Boox Note line, which has a 10" screen. They also have the (expensive) Max line with 13".
I'm not aware of any other (remotely popular) device line good for web browsing/Android apps. The company is Chinese and a little weird, but you can easily root the devices and disable all the phoning-home.
I use an Onyx Boox Nova 2 for epub books and web browsing which it's great for as a fully featured Android tablet, but it's not that great for A4-sized content with its 8" screen. However the same company also has the Boox Note line, which has a 10" screen. They also have the (expensive) Max line with 13".
I'm not aware of any other (remotely popular) device line good for web browsing/Android apps. The company is Chinese and a little weird, but you can easily root the devices and disable all the phoning-home.