Sorry, I don't run so I don't even have the Run tile on my Band 1. (You can pick and choose which tiles you have and reorder them.)
The Bike tile does show speed in the AFTER report. I really have not used it properly yet, just a small test.
No calculator app. No browser. You can push the action button and initiate Cortana Search on your phone or execute any voice command to the phone. I've had entire SMS conversations not even getting the phone out of my pocket. Voice and/or typing on the Band.
I'm a hunt and peck typist, not a touch typist. I have no issues causing me to hit the Band on things.