
The Halo is a tracker for fitness with an innovative design. The device doesn't feature a screen or vibration motor. It is a great option for those who want to keep their wrists free of distractions.
It provides a range of workouts and sessions to help users improve their overall health. It also has a variety of meditation, mindfulness, and tone-focused content.
Its best feature, the Tone of Voice analysis, focuses on improving your vocals by analyzing how you sound during an interview or other public speech. You can also use it to take a voice selfie that measures your overall tone as well as clarity.
It's an extremely useful feature, especially in interviews where it can sometimes be difficult to get your vocal tone right. You can also listen to your recordings and make adjustments.

The Halo's data-centric approach is key to fitness tracking. It tracks your sleep from start through finish and gives scores based upon each cycle. It can also measure your body temperature which can be helpful in determining how well you slept the previous night.
Amazon has committed that the Halo will be kept private, and users can opt in to use its voice tone analysis and body scan features. The company explained that it automatically deletes body-scan photos from the cloud after processing them. This does raise privacy concerns.
The paired smartphone app will do the body scanning. You'll need to take a photo with your skivvies on (only for those over 18). To get an accurate measurement of your body fat percentage, you will need multiple photos.
This does add a new level of complexity to your fitness tracking, as it can't be compared to more traditional metrics like steps or calories burned. It does give you a better picture of your activity over time.
Voice tone analysis uses two microphones to listen to what you say and to assess your voice. It's an extremely useful feature for anyone looking to project a positive image in social situations or at work.

You should note that this feature is not available without a paid subscription. You'll need to pay $4/around PS3 / AU$5 a month after six months to continue using it.
The Body Composition feature is also a notable feature. This uses height and body data, as well as photos taken from your body, in order to calculate your overall body composition. It is far more advanced than Withings’ bioimpedance based technology. However, it will require photos and may pose privacy concerns.
The Apple Watch and Fitbit have better fitness tracking than the Halo. It will show you how you are doing and if your weekly goals have been met, but it does not offer the same colorful graphics as other fitness trackers. To access the most advanced features like voice tone analysis, body scan, and voice toning, you will need a subscription.