We’ve seen Oaxis’ e-ink cases a few times here on Cult of Mac. The InkCase is a relatively slim iPhone case with an e-ink screen embedded in the back, and a Bluetooth connection to the host iPhone. The idea is that you can use the low-power e-ink display that covers its back as an always-on second screen to so that you don’t have to keep waking up your iPhone to check things like shopping lists or calendar events.

And now, the case is available for the iPhone 7 Plus

We want our iPhone case to look pretty and protect our investment. Beyond that, we ask nothing of it.

One technology company wants its case to do a little more, though. OAXIS is launching a case that also serves as a second screen, an e-ink display that gives you time, allows you to receive important messages and lets you read your favorite e-book.

I saw the Oaxis InkCase at the Mobile World Congress last week, and it looks pretty neat. The v2 “case” is actually an e-ink panel that connects to the iPhone (or other device) via Bluetooth and can show anything on its e-ink screen. The new version is modular, so you can slip in into any case for any device, and even mount it, say, on the handlebars of a bike for a sunlight-friendly readout.