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
    Great Tool

    Posted by Gianluca Sartoni on 31st Mar 2021

    I bought a sentinelX a few month ago, i use it every day when i walk but also at work in office. It’s a great boost for mining a lot of XYO token! It’s great

  • 5
    It certainly helps earn COIN more easily

    Posted by Ron Brind on 31st Mar 2021

    This update really is worth having, it's easy to use, store and apply so what's stopping you getting yours? COIN is exchanged for XYO and the value is increasing big time! Thank you to all involved.

  • 5
    Accelerates coin mining! Great buy

    Posted by Ryan on 30th Mar 2021

    Great buy, significantly sped up my mining speed compared to the first 10 days. 10/10 would recommend

  • 5
    Excellent addition

    Posted by Lennie Jarratt on 30th Mar 2021

    I bought my Sentinel NFC with coin. It took me 8 months to earn those Coin. Since buying it I have earned the it all back plus more in just over 2 months. It’s great. I should have bought it much sooner. It is worth it.

  • 5
    Improved Earnings

    Posted by Ali on 30th Mar 2021

    The sentinel is nice. I like the improved earnings and that I can let others scan it and I get a little kickback. I keep mine on me in my wallet.

  • 5
    Different than the Bluetooth Sentinel

    Posted by Jaime Gatwick on 19th Jan 2021

    I really like the fact that this doesn't require any battery. Don't get me wrong, the bluetooth one is good, but the fact that this doesn't require any battery is super cool imo.

  • 5
    Best for wallet

    Posted by Mia on 19th Jan 2021

    Thank god you guys finally came out with this! I have been waiting for a new device because my Bluetooth sentinel wasn't always in my purse, but this solves that problem! Thanks!

  • 4
    Longer Scans Please

    Posted by Ryan L. on 19th Jan 2021

    I just got the SentinelX, and it's really great for boosts BUT I want longer scans!!! Four hours is not enough for me, I have to put my phone away for work so I forget to scan it again sometimes. I had the Bluetooth one and it was pretty good but I really liked the no battery with this one. thinking I may get the subscription because I want to get 24 hour scans

  • 5
    Started Small but Now its pretty Good

    Posted by Justin on 18th Jan 2021

    When i first downloaded the app, i was doing it daily and earning a reasonable amount, and this thing is a game changer. I ended up getting a subscription after using my sentinel for a few weeks and I'm redeeming in a bit for some sweepstakes stuff

  • 5
    Just found this, pretty fun!

    Posted by Alex R. on 15th Jan 2021

    I literally found this through an Instagram ad, but it's been super fun on my phone. I work from home right now, so it's been nice getting to have my phone earn something on the side for me while I'm busy. I used to spend most of my COIN on crypto, but since they introduced sweepstakes I've been pretty into that now

  • 5
    Wasn't Sure At First?

    Posted by Ben on 14th Jan 2021

    When i first opened it, i wasn't sure how to scan it with my app, so I went online to the support center which worked out ok because they had some instructions there. I scan it every day and then just earn more when i drive, it's great

  • 5
    Getting my family into crypto

    Posted by Cryptid on 14th Jan 2021

    I'm crypto-obsessed and my family doesn't get it but I did get a couple of them into COIN (instead of wasting money with pay-to-win mobile games.) Everybody is getting a sentinel and guide to financial literacy for their birthday this year LOL