VVT R4 Smart Ring

$49 $79
VVT R4 Smart Ring

IC / ID / NFC card simulation | iOS Android dual platform Cloud Application

Micro-crystal Zr ceramics 

VVT 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, VVT 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

VVT 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, VVT 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

VVT 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

VVT 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

VVT 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

VVT 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

VVT 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: UID
ID module type: T5577
NFC module type: Ntag213
Ring material: Ceramics
Protection grade: IP68
Operating temperature range: -50℃ ~ 80℃

  • We ships worldwide for free, no hidden fee!
  • US orders will be through the United States Postal Service (USPS).
  • International orders will be through the Local Postal Service.
  • It takes 2–7 business days to create a product and fulfill an order

    Estimated Shipping Time 
    • United States 10-20 business days*
    • Canada 15-30 business days*
    • United Kingdoms 15-30 business days*
    • Australia 15-30 business days*
    • Europe 15-30 business days*

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  • Free return for any reason within 15 days
  • We have a 30-day return and refund policy, which means you have 30 days after receiving your item to request a return and refund.

    When you buy our products, you're backed by a 30-day no questions asked return or exchange. You can always contact us for any return question at support@vivatimepiece.com

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