So, on my laptop, I composed a Gsheet that detailed my crosstrainer exercise routines. Time spent, calories burned, my weight in kg, etc. A couple of graphs and some conditional formatting. I was playing with the functionality more than anything else. Gsheet looked promising.
You're going to hate this, but I'm still using that same sheet today. I fill in the data, not on a tablet, but on my Samsung S2. It's perfect. I get off the crosstrainer, pick up my S2 (which has been sending music to my bluetooth speaker), tap the shortcut and enter data in half a dozen cells.
Can you see a better method?
Have some more coffee. It's good for you.