Watch and see Centra visa card be first to world wide market. Ya'll don't even know 
What is the big difference between the Centre and TenX? I think TenX is not for worldwide shipping card, even I still don't know much about the center, I here some people are telling that they are going to ship for worldwide?
Here is the differences of TenX and Centra
1. Centra aims to have their own blockchain and not just be a ERC20 token
2. Centra plans on having a Fiat Gateway on their mobile app so you can buy crypto with your USD exactly like Coinbase (this is probably the single biggest reason why I like them over TenX)
3. Centra Has way higher spending limits than TenX
4. Centra is shipping cards worldwide (first crypto debit card to ship worldwide)
5. All crypto stored on Centra app is 100% insured (yes you heard that correctly). In the event someone loses their crypto, you will get it back.
6. Centra Card will support 12 cryptocurrencies. TenX only supports 3
7. You will get 1% cash back with Centra and only .1% with TenX
8. Centra is opening their own marketplace to buy goods and services (Called Cbay and its released in 2 months).
9. New celebrity endorsements Mayweather and Khaled (not that this is very important but it adds a lot more credibility to the project).
10. It is rumored that Centra is in talks to get an official endorsement from Vitalik Beutrin.
Centra is clear winner in my eyes so I will be investing into them. I think TenX is way overvalued at this point and the market is showing this.