So this would be a replacement 'watch band' for the Pebble Time, which provides biometric data to it? Your website seems to suggest it'll work with any device, will it still interface with the "smart accessory port" on the Time? Do you have advance information about the protocol/form-factor that the sensors, or are you going to finalize that part of the design once it's available? Also, I'm not sure I understand why it's called "contactless".

Seems very interesting though. It seems most wearables lean either towards "interface for your phone" or "fitness device", so something that boosts the Pebble's biometric tracking could be pretty cool.