Suggestion for non-Fitbit calorie counter

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I used Fitbit for several months and it stopped working three times -- they sent me a new one multiple times. I'm over fitbit.

I want to get a different type of calorie counter all together... hopefully something discrete. Nike band?

I'm wondering if I need to wait until the kinks have been worked out with these little devices before buying one. The Amazon reviews have been pretty poor for many of the devices from what I've read.

Suggestions?