R4 Smart Ring Waterproof NFC ID IC Multi-Card Simulation Magic Finger for Smartphone

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Grab your Discounted R4 Smart Ring Waterproof NFC ID IC Multi-Card Simulation Magic Finger for Smartphone while the store LAUNCH DISCOUNT is on. Once we reach 50-unit sales, we will be increasing the price back up to 62.99$. This is absolutely a great gift!

ORDER NOW because these are FLYING off our shelves! Limit to 5 per customer max!


R4 Smart Ring Waterproof NFC ID IC Multi-Card Simulation Magic Finger for Smartphone

1. Jakcom R4 is entirely made of micro-crystal Zr ceramics, calmly deal with all kinds of scratches.

2. Jakcom R4 carries with multiple sets of RFID chip modules.capable of simulating 4 contactless RFID cards.
IC card*1
ID card*1
NFC card*1
NFC card*1

3. Jakcom R4 is capable of operating different functions Or sharing different information on Android and IOS platforms Through two sets of NFC modules, e.g.
Virtual call (Quickly trigger a real timed call)
Scene notification (Quickly trigger multiple preset notifications)
Memo sharing Business card sharing ETC.

About size: please refer to the picture of "Size selection" at the bottom.

JAKCOM R4 Smart Ring
IC / ID / NFC card simulation | iOS Android dual platform Cloud Application

Micro-crystal Zr ceramics
JAKCOM R4 whole body is entirely made of micro-crystal Zr ceramics.
With excellent refractive index and chromatic dispersion, the device emits unique rounded luster.

Marathon process

Each ring needs to undergo forging for 2 days, sintering in a 1400 ℃ furnace for 5 days, thousand times of CNC polishing, coating and other post-procedures.
It takes 35 days to present the ring in front of you.


Nano feature
By virtue of the low thermal conductivity of Micro-crystal Zr ceramics, JAKCOM R4 has a gentle touch sense as jade.

Possess 4 times the hardness of aluminum alloy, calmly deal with all kinds of scratches in daily life.

New flagship of smart ring
JAKCOM R4 is the fourth generation smart ring,
it carries with multiple sets of RFID chip modules.
And is capable of simulating four contactless RFID cards.
Once again, it becomes a new flagship product.

Brand new design, brand new breakthrough
The newly designed circuit structure has greatly reduced the electric field disturbance between the modules.
Compared with the previous generation of products, it has increased the transmit-receive distance by three times, and can be easily compatible with a variety of card reading devices.

Multi-frequency bands and multi-standards
From 125KHz to 13.56MHz, JAKCOM R4 can simulate encrypted IC cards or ID cards in a variety of formats,

help you to effectively deal with all-fields card swiping scenes.
Personal access card / Public access card
Elevator card / Parking card
Time card / Medical card
Shopping card / Gas filling card
Transportation card / Car key
Membership card / Customized card

NFC cloud services flying its own colors
The built-in featured cloud services can be respectively started through the two sets of NFC modules
It can be used directly without APP installation and is Applicable to Android and iOS dual platforms.

Virtual call
JAKCOM R4 can quickly trigger a timed call on any mobile phone.

Creating a proper reason for departure
Avoiding to be embarrassed for exit

Scene notification
JAKCOM R4 can quickly trigger multiple preset notifications on any mobile phone.

Save worry and make your family relieved at busy moments

Provide additional guarantee with the messages at critical moments

Hand-writing notepad
JAKCOM R4 can quickly open the dedicated notepad corresponding to the chip on any mobile phone.

Independent of fixed phone or APP,
safe, fast and login free, easy on the trigger of editing and sharing.

Information sharing
JAKCOM R4 can share various cloud information, e.g.,
encrypted text, business card, web pages, network disk files.

Endow each encounter with full of color.
Leave deep impression on each courteous reception.

Continuously updated fingertip intelligent device
JAKCOM development team continues to update more special functions for R4 Smart Ring, and will update your device synchronously.

Waterproof and dust-proof
The dust-proof waterproof level of JAKCOM R4 is IP68, and it can meet the application requirements of various environments.

No need to charge
JAKCOM R4 is driven by the radio energy of the read-write equipment.
Charging is not needed. No need to worry about the battery life. It can accompany with you in every single day.

Size selection
1. When measuring, please use a fine line without elasticity to wind around your finger;
2. Tighten the line slightly, otherwise the ring will be over size;
3. After straightening the line, measure its length with a ruler, and choose the size according to the table below.

Parameters and details
Carrier frequency: 13.56MHz, 125kHz
RF distance: 1 ~ 3cm
IC module type: CUID
ID module type: T5577
NFC module type: Ntag213
Ring material: Ceramics
Protection grade: IP68
Operating temperature range: -50℃ ~ 80℃


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Satisfaction Guaranteed With Every Order. All prices are listed in USD.

Shipping Info:

- Estimated Delivery Time: US 10-25 Days; Worldwide 15-30 Days.


We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 30 day guarantee.

If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase.

Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right.

We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance.


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