Halo tracks your heart rate, sleep quality, heart rate variability, activity levels and wellness signals through simple easy to understand graphs throughout the day and night, all from your finger.

Yes, Halo has a 5ATM water resistance rating, meaning its safe for showers, swimming and water sports.

The Halo ring itself lasts several days on a single charge. With the charging case companion, you can go up to 170 hours without needing a wall socket... that's a week! - Perfect for travel.

We offer a 30-day return policy. If your not happy, contact us and we will sort it out.

No, The Halo app is completely free with no hidden monthly fees. You pay once for the ring and thats it.

Using our sizing guide - measure the perimeter of your finger just like how a ring would fit and use the measurement of your finger to find your size. If your between sizes, we recommend sizing up for comfort.

The ring collects data continuously on its own. You will need the Halo app to view your stats and insights, but you don't need your phone nearby while wearing it.

The Halo ring app also has a womens health section where you can track your menstrual cycle all in one place. The app also offers a weight record where you can enter and keep track of your body weight over long periods of time.