> slowness / lack of responsiveness
Are you saying that replacing the battery improved your phone's responsiveness? I knew there was a throttling thing with iPhones but hadn't heard of anything outside of that.
I would honestly love for phone manufacturers to outright build in some software to build in best practices if they actually exist. Don't let me charge to 100% at first or something!
On iOS if you wanted to translate the text on a button you have to take a screen capture, then translate the screen capture.
This was possible partly because of the stylus hover feature, but also because the Android permission model allowed for applications (translation service) to 'see' the screen of other applications. Something I don't think iOS allows.
If you enjoy using foreign apps, learning languages or living in an area with a different language the Samsung Note series was fantastic.
However, every way involves the text being [selectable] text and not something like an image (unless you use your method). And you said button, and I am not positive if a long-press will trigger the press event.