SentinelX NFC

(34 reviews) Write a Review

Product Overview

Our newest device.

The SentinelX NFC

The newest addition to the SentinelX family, the SentinelX NFC is a card that uses Near-field Communication technology and helps us verify your location is authentic.

Earn 12x rewards on a Basic COIN Plan, and a 10% boost on any COIN Premium Plan! The SentinelX NFC requires no battery, and simply needs to be scanned by your phone for a temporary rewards boost.

The SentinelX NFC is a convenient credit card shape, so you can keep it close by in a wallet or laptop case.

SentinelX Sharing

Register a SentinelX NFC to your COIN Account, and give it to a friend. When they Geomine with the NFC boost, you'll get 10% of their rewards! You can even combo with Referral Rewards to earn a maximum of 20% from their account.

NFC Compatibility

Note: Requires NFC Compatibility. Not compatible with iPhone 5, 6, 6+ or SE (2016), and some older Android devices. Please check compatibility here: 


  • Near-Field Communication Technology
  • Waterproof
  • Additional Rewards on Every COIN Plan
  • XYO Foundation Approved Product
  • Assign a Referral Link to the device for easy referrals
  • SentinelX Sharing on any COIN Account level (including basic!)

Product Videos


(34 reviews) Write a Review

34 Reviews Hide Reviews Show Reviews

  • 5
    Sentinels NFC

    Posted by Scott Gebhardt on 28th May 2024

    Very easy to use. Carry in wallet

  • 5
    sentinel card

    Posted by Natalie on 29th Apr 2024

    Sentinel card works well. It increases reward as promised.

  • 5
    Multiplier Card

    Posted by John Comstock on 29th Apr 2024

    Super genius way of upgrading the points and location in one shot!!! My rewards are pawsome!!!

  • 5

    Posted by Zachary on 11th Apr 2024

    Works exactly as advertised

  • 5
    Great product

    Posted by TYLER on 25th Mar 2024

    Love the card

  • 5
    Sentinelx nfc

    Posted by Drew B on 10th Mar 2024

    Good card. Tap and stay active. Helps you get a boost in rewards .

  • 5
    Excellent super cool. Technologically advanced card.

    Posted by Charles Silio Jr on 25th Feb 2024

    Connect the phone with Bluetooth and is a simple one click to bring it to the COIN app and boost your points. Everybody knows the more points the more smiles. Love the product. Thanks y’all.

  • 5
    SentinelX NFC Card

    Posted by George Dodd on 6th Dec 2023

    This is my 2nd card, the first one almost lasted three years with the Texas sun. Had to get a replacement after the first one finally succumbed to deformation and heat. It could give a little more of a boost and last longer than 4 hours.

  • 5
    What a great product

    Posted by Laz on 30th Jul 2023

    I have been using the card for a while and it works great keep up the great work

  • 4
    Not Bad

    Posted by John on 27th Jul 2023

    Kind of pricy, it’s the same tech as a hotel key card. It’s definitely worth buying if you are a basic user and not paying for enhancements. For the people who are, you still get 10% more with scanning this card every 12 hours, and the more the better, right?

  • 5

    Posted by Vitalijus on 26th May 2023

    Hello. Yesterday i got my sentinel. Im happy. I think this will be not last purchays. Thankyou.

  • 5
    Nice app

    Posted by Muhammad Nadeem Sarwar on 5th Dec 2022

    I am using this app easy earnings platform just you singup and enjoy it