But here are two things to think about. First, the device, by the company’s own admission deep on its website, will last only two years. The battery cannot be recharged, so if you find the device useful, you’ll need to shell out another $100 to keep using it. So think of it as a $50-a-year subscription, if that helps it go down easier.
Consider this as well: When you buy it, you are agreeing to terms of service that give you no protection. Should something go wrong — name your worst fear: the device broadcasts your credit card numbers, it is hacked, the site containing your encrypted numbers is hacked, the numbers are improperly encrypted, merchants refuse it — it’s not Coin’s problem. The company says it is confident it will work as promised. “We stand by our product,” a spokeswoman emailed.
But only in a very limited-liability kind of way. Consider this sentence in the agreement: “You are solely responsible for your own losses or losses incurred by Coin and others due to any unauthorized use of your account.” If the card is lost, stolen or damaged: Your problem.
....The company also says that if the service doesn’t work as promised, well, also your problem. It might give you $5 back, but it doesn’t have to