Pebble Smartwatches are pretty decent smart wearable devices you can use to stay connected everywhere you go. Thanks to Pagaré Smartstraps for Pebble, you can make contactless payments. It has multiple layers of security to protect your sensitive data. For instance, it uses the same card service as Apple Pay to replace your card number with a token.
Pagaré is pretty easy to use. Simply put it near the card reader to pay quickly. It does not get in your way and can be used at many stores. More information is available on Kickstarter.