MyCase 4.0

One case.Endless designs.

Back of MyCase showing the full E Ink display
E Ink back design
Buy

¥9,980

Always on

Take off the case,
the image stays.

MyCase still showing the same design after being removed from the phone

The back of MyCase 4.0 is E Ink. Set an image and it holds at zero power. Take the case off your phone. The image is still there. No battery. Nothing to charge.

0W

Power to keep the display on

No charging

Designed with no battery

NFC

Draws power from your phone only while updating

Design

From any angle,
it’s you.

Back of MyCase 4.0

Drag to rotate. Tap a design to try it.

Reviews

Every case,different.

I can switch to whatever design I like anytime, and I love that.

From a verified review · 2026.09.02

I used to slide stickers under my case, but I stopped needing to once I got this — much better.

From a verified review · 2026.08.17

It works perfectly and I could set the photo I wanted. Very happy with it. I’ll use it again when I switch phones.

From a verified review · 2026.07.26

1 / 3

Changing designs

Choose,send.That’s it.

Pick a photo in the free NetMe app. Send it to the case. It takes a few seconds — up to about 25. Change it as often as you like.

  1. 01

    Open the app.

    Download the free NetMe app and open it with your case still on.

  2. 02

    Choose an image.

    A photo from your library, or an illustration. Position it, size it.

  3. 03

    Send it.

    The back updates in a few seconds, up to about 25.

Close-up photo of the actual E Ink surface

E Ink

Like paper.Easy on the eyes.

E Ink doesn’t emit light. It reflects the light in the room, the way paper does. Black, white, red, yellow. Your favorite image, printed into the case.

Learn more about E Ink

E Ink

A screen
that reads like paper.

The back of MyCase 4.0 is a display that makes no light of its own. It reflects the room, so photos and illustrations look printed, not lit. Set it once and it holds at zero power.

MyCase 4.0 showing an illustration on its 4-color E Ink display

  • 0W

    Power to keep the display on

  • 4colors

    Black, white, red, yellow

  • 4.0in

    528 × 768 pixels

How it looks

It doesn’t glow.
It catches light.

E Ink has no backlight. Like paper, it reflects the light around it. The brighter the room, the sharper it looks, and the easier it is on your eyes. Not the push of a lit screen. The calm of a print.

Close-up photo of an actual E Ink display
A close-up of the actual E Ink display

Like paper, it needs ambient light to be visible in the dark.

Color

Four colors.
One image. Yours.

The display shows four colors: black, white, red, and yellow. Fine dot patterns render light, shade, and color, for a look that belongs to E Ink, not to a full-color phone screen. The app previews the 4-color conversion before you transfer, so you choose knowing exactly how it lands.

  • Black
  • White
  • Red
  • Yellow
A street-style design converted to 4 colors
A floral design converted to 4 colors

Preview image after 4-color conversion. Actual color may vary with ambient light and other conditions.

How the display holds its image

Set it once.
It stays.

E Ink moves colored particles with electricity. They stay where they land, so holding the image costs nothing. Take the case off your phone and the image remains. Power goes in only during an update, over NFC from your iPhone. No battery. Nothing to charge.

How to update it

Choose. Check.
Send.

  1. 01

    Choose a design.

    Pick a photo or illustration in the free NetMe app.

  2. 02

    Check the preview.

    See the 4-color conversion preview before you transfer it.

  3. 03

    Transfer it.

    Update over NFC. In a few seconds, up to about 25, your new design is set.

Only still images can be displayed. Updating takes a few seconds, up to about 25, which differs from the transition effects shown on this site.

Stand

Stand it up.Fold it away.

MyCase standing on a table with its hinge open about 90 degrees

The frame around the camera opens to 135 degrees and becomes a stand. Turn it sideways for video. Fold it flat when you’re done.

Returns

30daysIf it’s not right,send it back.

Not for you? Send it back within 30 days of delivery.

Unused, in its original packaging.

Full refund to your original payment.

MyCase 4.0

Your case,even more yours.

Three MyCase cases layered with the center one in front — Headphones, Question Mark, and Yellow Knit designs
¥14,300¥9,980
Buy

MyCase 4.0

Dress upyour phone.

Buy