SentinelX NFC

(24 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


(24 reviews) Write a Review

24 Reviews Hide Reviews Show Reviews

  • 5
    sentinelX NFC

    Posted by Takeo Muraoka on 12th Jul 2021

    Love it no more battery great product

  • 5
    Does what it says it does.

    Posted by R.B. P. on 29th May 2021

    Compact and convenient

  • 5
    SentinelIX NFC

    Posted by SSnide on 17th May 2021

    This is an easy and portable way to get the mining boost you need.

  • 5
    Sentinel NFC

    Posted by Mark on 5th May 2021

    Really easy to use. I keep it in my wallet to top up the app when on the go.

  • 4
    I'm looking forward to using my new device super excited

    Posted by Will on 4th May 2021

    Looks like a simple easy to use device

  • 5
    Dispositivo Muy Recomendado

    Posted by Manu Martin on 12th Apr 2021

    Hola soy un usuario de España, yo lo he comprado desde el principio y es excelente. Te genera muchas más recompensas que sin él, incluso con cuentas básicas. Os lo recomiendo, simplemente pasándolo por detrás del smartphone se activa automáticamente, tienes que pasarlo cada ciertas horas.

  • 5
    Best option

    Posted by wskm on 7th Apr 2021

    No battery for life. You have to scan the card from time to time.

  • 5
    Good for earn all time hight

    Posted by AtlasXI on 5th Apr 2021

    Easy to talk in pocket. Strong and not wet

  • 3

    Posted by Eduardo on 2nd Apr 2021


  • 5
    NFC Sentinel

    Posted by Luke Bellamy on 1st Apr 2021

    The sentinelX is great for me, as it fits in my phone case flip panel, so I do not even need to take the card out to re scan it every 4 hours. It would be nice if you could somehow extend the time to 8 hours for overnight, maybe by doing an in app task. Glad I got it on a free offer/

  • 4
    SentinelX NFC

    Posted by Sander on 1st Apr 2021

    I am very pleased with my Sentinel NFC, the advantage over the old Sentinel BLE is that it is easy to carry in the case of my phone. In addition, it does not use a battery. In addition, the sharing option is a nice and desirable addition because it allows you to earn additional COIN.

  • 4
    Sentinel NFC

    Posted by Austin0815 on 31st Mar 2021

    Good thing, online thing thats not so nice you have to scan it very much