Wich one is better to go with.. Verichip or didgital angel?

Hello.. Im thinking about geting a chip implant and I was wondering... Wich is better? Verichip or digital angel? I am strongly considering geting one Just incase something happens and so that I can buy and stuff with it in the near future..... And so I feel safe Knowing that if something happens to me That the cops can track me and rescue me. So wich is better?