Not your parent commenter. Yes, I want to opt-in explicitly, even for heart rate when I buy Fitbit. The default should be do not track, do not do anything with

Not your parent commenter. Yes, I want to opt-in explicitly, even for heart rate when I buy Fitbit. The default should be do not track, do not do anything without explicit permission from user. This includes even harmless features and core features of a product (like heart rate monitor for fitbit). This wouldn't be the case if companies played nice. We are well past that now. We can't believe pretty much any company online, not to sell data, mess with their users' privacy etc. Explicitly opting in is a minor inconvenience compared to destroying everyone's privacy.