Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra
Reink Case Knight for Samsung Galaxy S24 Ultra

Reink Case Knight for Samsung Galaxy S24 Ultra

Black Friday Sale
Free Shipping Worldwide
20% Off Coupon Code: BFRC20

$79.90
$99.90
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Dynamic windows
Change patterns anytime
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4-color eink screen
Colorful and clearer
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NFC tech
No battery & plug
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Metal bracket
Durable and convenient
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Rugged design
Strong protection
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Original display algorithm
Looks more vivid and real
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  • 2022——Reinkstone launched the project to develop color e-ink screen phone cases
  • 2023.06——Reinkstone launched the world's first NFC 3-color e-ink screen phone case
  • 2023.11——Reinkstone launched the world's first 4-color e-ink screen phone case
  • 2024.08——Reinkstone launched the 4-color e-ink phone case for Samsung
  • Future——Stay tuned for more innovations and surprises.
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Tribute to Samsung Galaxy

Samsung exists to create human-driven innovations that defy barriers to make a better world for all.
Reinkstone exists to to develope innovative color e-ink products to allow more people to experience the beauty and benefits of color eink.
This year marks the 14th anniversary of the launch of Samsung Galaxy, and Reinkstone launches the Reink Case Knight - Starry Version to pay tribute to it.

Invite you to the galaxy

Since ancient times, the galaxy has attracted us to explore.
Because the galaxy means the unknown, and there are infinite possibilities in the unknown.
We all have our own journey into the stars.
Hope we all meet our dreams and find what we are seeking for on our journey through the stars.
Reink Case Kinght invites you to travel to the galaxy.

E-ink Dynamic Window for Samsung

Magic E-ink Screen
Incredible Experience

Knight has a built-in 4-color e-ink screen. The back screen pattern can be changed at will. Your dynamic window is defined by you!

One case is worth a million, and every day looks like a new phone case. Every time you use it, you will feel a sense of surprise like opening a blind box.

Dynamic Window for Expression

Self expression

DIY your own phone case.
Be unique, just like you.
Show the world what you love.
Show the world who you are.

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Show your mood

Joy, anger, sorrow and joy.
Your emotions can be seen.

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Missing my love

The one you love is not around.
Watch the pattern on the case to ease the longing.

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Motivational power

When you feel tired on the road of life,
you might as well look back at your original intention and ideals,
and regain the confidence and motivation to move forward.

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Dynamic Window for Assistance

External screen tips

Airline tickets, to-do lists, and anniversaries are casted onto the back screen.
You can see the information clearly with your backhand,
without having to repeatedly open the phone to confirm.

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Convenient QR code

Put the QR code on the back screen.
It will attract people's attention whether at work or in social occasions.

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Eco-friendly NFC Tech

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NFC tech
No battery needed

No battery, no tail plug. Data and power transfered via NFC.
A smart product that requires no batteries.

Zero power consumption display

Knight only draws a small amount of power from the phone during the image transmission process, and does not use the phone's power at rest times, because the e-ink screen does not require power to maintain the image display.

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* Less than 1% of the power consumed when transmitting patterns

Outstanding Using Experience

Touch-friendly

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The explosion-proof glass back cover is frosted and feels fresh and smooth.

Display-friendly

Reinkstone's self-developed e-ink display algorithm makes the final display effect of the pattern more vivid and realistic.

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Use-friendly

Quick Editing

One-click beautification of pictures, direct to the best display effect.

Create Theme

Color, filter, text, stickers, and frames are all available.
Give full play to your creative talent.

Selection-friendly

4>3
Four display algorithms.
Must be a display effect that satisfies you

1000+ selected theme wallpapers
Treasure patterns give you endless surprises every time

Lens bracket
Kick the difference

Multi-angle support
Multi-scene use

115° folding angle, suitable for comfortable use in various scenarios.

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Vertical

Watch short videos and read books

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Horizontal

Watching dramas and video calls

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Flip

A way to take selfies that
show off your long legs

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Hang

You can hang your phone with
just one thumb

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Satisfy

The rotation has a damping feeling
Super stress-relieving

The bracket is so durable

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High-quality materials

Aviation aluminum alloy, strong and reliable

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Conscientious Craftsmanship

Customized exclusive mold, carefully made through 25 processes

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Worry-free folding

The bracket has been tested for 10,000 openings and closings and is still smooth and durable

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Large load-bearingg

The bracket can withstand a weight of
6KG without breaking

Most Protective E-ink Phone Case

Samsung armor

The phone and the case are safe even after falling from a height of 1.8 meters. It can handle most unexpected situations.

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Anti-bending
No risk of screen breaking

Diamond-grade glass cover, no bending after long-term use.
No need to worry about damaging the e-ink screen when disassembling.

Dust and water resistant
Take it easy

Dust and water resistant,
no need to worry about splashes or unexpected accidents in life.

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What makes Knight so strong
Material, structure and process

Selected materials

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The shell is made of TPU from Bayer, Germany. The hardness of TPU is improved to make it stronger.

Solid structure

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Thickened corners and impact-resistant design, shock-resistant and drop-proof.

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High standard process

The glass cover adopts the smart phone industry standard dispensing process. The cover fits more tightly and will not fall off.

Extraordinary Hardware
Meticulously Manufactured

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Reject public motherboard

Reinkstone team's exclusive patented motherboard - small area, high integration, low power consumption, and performance far exceeding public boards.

Multilayer flexible PCB
Longer lasting and more durable

Multi-layer flexible PCB can reduce electromagnetic interference, allowing the device to operate more stably and for a longer period of time.

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Exclusive NFC antenna
Efficient and stable

The transmission is stable and has been verified by users in more than 100 countries around the world.

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No hindrance to other NFC functions

You can still use your phone to pay when taking the bus or subway.
Samsung Pay can also be used normally.

Product List

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Tips for use

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Place the phone into the bottom of the case first andgradually press it into the case from bottom to top

Frequently Asked Questions