The Amazon Halo* is a light (18g) and slim fitness tracker with no display. It is fitted with a velcro fabric strap that covers the plastic sensor. There are a number of replacement straps on the market so you can bling it up as much as you like.
The Halo is simplicity itself. There is just one button which connects you to the Halo app. A couple of microphones for picking up your voice tune an LED indicator light. The sensor is rated at 5ATM, which means that its waterproofed 50 metres.
One way in which the Halo stands out from the crowd in the tone of voice monitor that monitors your speech. Compared to a base line recording it can give you an idea of how positive you sound to others!
The Amazon Halo* has a battery life of around 7 days using it as a fitness tracker with continued heart rate monitoring. However on top of the purchase price after 6 months you will need to factor in the Halo subscription which is currently $3.99 + tax per month. Without it you lose some of the most important features of the Halo.
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