This is the same advice I give everybody, and as a former fatty who is now in great shape, I believe I'm an authority on this topic. Forget all this type of gear. If you want to get into shape, do 20 to 25 minutes of moderately difficulty cardio 3 or 4 times a week. Jogging, swimming, exercise bike, whatever. Work just hard enough to break into a light sweat. Don't try for too much too soon. No, cleaning your house or playing with the dog DOES NOT COUNT. Going on a hike every month and a half, when you're not too busy from work, will do you no good, either. Make it a habit. No matter who your are, you'll either find an hour 1 1/4 a week to exercise, or many hours a week in the cardiologist's office.
In a couple of months, it'll become a habit and you'll be on autopilot.
These types of high-tech gadgets, while impressive technically, will only distract you from the simple task you need to do to succeed.