Comment by alisonatwork

I have one. I use it as a replacement for my phone when I am in bed, just for checking email, reading the news, Anki flashcards etc. I also take it out on long bike rides so I can do those same things while sitting in the sun on the beach or something. (Phone screen is pretty much useless in direct sun by comparison.) It's not a big deal to connect to your phone's wifi hotspot briefly to sync. Main point is that you have the phone experience without the eye strain, and if it saves battery on your phone at the same time, bonus. Yeah, you're carrying more stuff, but if you're really going somewhere where carrying two devices is going to be too much weight, then you probably would prefer a regular phone screen over eink anyway.