You can also add wallpapers to the BACK of your smartphone with these full color E Ink cases

A phone case that fits perfectly with MKBHD’s Panels app subscription…

Phones are getting smarter, faster and flashier, but let’s be honest – in most cases? They played catch-up. E-Ink displays on phone cases debuted years ago, but they’ve been stuck in a world of grayscale…until now. Reinkstone’s new 4-color E Ink cases don’t just break the mold; They are practically reinventing it. Forget the drab black and white screens of the past. These cases bring vibrant cyan, magenta, yellow and black into the picture, transforming the back of your phone into something that feels almost alive. It’s the closest thing to a foldable phone with two screens!

Designer: Reinkstone

It’s not just the color that grabs your attention – it’s the seamless integration with your phone. There’s no bulky battery strapped to the back and no charging cables to contend with. Reinkstone’s clever use of NFC technology ensures this. Your phone wirelessly powers the case and transmits both power and data via NFC. E Ink displays have negligible power consumption (they only require power when changing pixels), so the cases work perfectly without the need for a battery or special charging port. Change the display with a companion app and the back of your phone will update in real time. It feels effortless, a feature that makes you wonder why it wasn’t done before. It’s not magic, but it’s pretty close.

As for the E Ink screen – it’s about the size of a trading card, which might not sound groundbreaking, but in the world of phone cases it’s a revelation. Gone are the days of boring, static covers. This small screen is the perfect canvas for photos, to-do lists, your boarding pass, or a QR code from your website or social media if you’re into heavy networking. And yes – while it may not replace your main screen for binge-watching or endless scrolling, it does offer a touch of practicality. Quick flashes of information on the back of your phone? It’s a feature you didn’t know you needed until you got it.

Reinkstone didn’t just limit itself to a pretty screen – durability is also built into these cases. They’ve encased the E Ink display in explosion-proof tempered glass to ensure your photos and lists remain protected even if your phone is dropped. The case body is made of Bayer TPU – a material known for its robustness and flexibility and can withstand drops of up to 1.8 meters. Inside, the technology gets even smarter: a patented multi-layer flexible circuit board ensures that everything works smoothly without adding any additional bulk. In a world where form is often more important than function, Reinkstone balances both like a pro.

And just when you think it might affect your daily phone usage, Reinkstone has already thought of it. Their specially developed NFC antenna ensures that you have no problems when making contactless payments or scanning for public transport. You can still type and get started without any issues. It’s almost as if the cover isn’t even there – until you want it, of course.

When it comes to pricing, Reinkstone knows how to sweeten the deal. Normally their cases are around $100, but they’re currently on sale: $74.90 for the Reink Case C1 (iPhone 13 to 15 Pro Max) and $79.90 for the Reink Case Knight ( Samsung Galaxy S24 Ultra) … these are just a few of them costs more than the Panels+ annual subscription to MKBHD’s wallpaper app and shouldn’t be a big deal if you’re a “wallpaper power user” like Marques.