What functionalities do you want in your #PebbleTime Smartstrap?

We know that everything won't fit in a strap, so let's make the developers see what we want more to help them create the perfect Pebble straps for sport, battery, general use, etc.

Select all the options you want.

UPDATE 2015-03-13: This poll was based in hardware functinalities to help future developers, not in how apps will use those smartstraps, but someone in KS Comments (https://www.kickstarter.com/projects/597507018/pebble-time-awesome-smartwatch-no-compromises/comments) noticed that it would be good to know possible usages. So I keep in mind that:

- Sound: Any option -speaker, headset connector, BT handsfree- can be used for alarms, listening music, getting Siri/Google Now/any replies, phone calls, etc.

- Storage: Any option -internal, SD reader- can be used for stand-alone music -if sound available-, pictures, documents, USB-stick-like -if micro-USB charging available-, etc.

- Sensors: You may be thinking about fitness when you read heart rate, but think about medical, too. You may be thinking about usage when you read gyro strap, but think about parkinson too. You may be thinking about paying when you read NFC, but think about opening doors, pairing with a new device, etc. And so on...

UPDATE 2015-03-13 (2): Added ANT+ http://en.wikipedia.org/wiki/ANT%2B), a connectivity alternative for sensors. There have been +3000 votes so far, and I'm sorry I didn't add it before, but I didn't know it.
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