Miya Pearson
The Jawbone UP3 is a slim fitness band that tracks sleep cycles and fitness using electrical sensors that make contact with the skin. It is the first Jawbone device to monitor heart rate to track sleep cycles, which it does by continuously recording the user's pulse while they sleep. This allows the UP3 to detect the different phases of sleep, including REM and deep sleep, and provide more accurate readings than other devices that rely on accelerometer sensors. The UP3 also has automatic sleep detection, meaning there is no need to switch into sleep mode before bed.
| Characteristics | Values |
|---|---|
| Heart rate monitor | Tracks heart rate to track sleep cycles |
| Sleep tracking | Tracks sleep duration and quality |
| Sleep staging | Detects different phases of sleep |
| Sleep quality | Tracks Wake, REM, Light and Deep sleep |
| Sleep tracking mode | Requires manual activation |
| Sleep data | Syncs data via Bluetooth to iPhone or Android smartphones |
| Battery life | Up to 7 days |
| Price | $179.99 |
What You'll Learn
The UP3 uses heart rate to track sleep cycles
The Jawbone UP3 is a fitness device that tracks sleep cycles using heart rate. It is a slim strip of plastic with a flexible strap that adjusts to a reasonably tight fit to ensure the metal contacts within the strap make decent contact with the skin. The UP3 uses bioimpedance sensors to track the user's heart rate and can detect sleep phases with a high degree of accuracy. This includes the REM (rapid eye movement) stage, when the heart rate is fairly irregular, and deep sleep, when the rate is more steady.
The UP3 offers a significant advantage over previous generation Jawbone devices and most other fitness trackers, as it can detect different phases of sleep using the heart rate monitor. Activity trackers that use motion to infer sleep can only predict when a person falls asleep, not the important sleep cycles and quality of sleep. The UP3 can distinguish between different sleep cycles, which is an important feature for those looking to improve their sleep quality.
The UP3 also provides advanced sleep tracking, allowing users to understand their sleep quality by tracking Wake, REM, Light, and Deep sleep. This information can be used to suggest improvements and help make the next night's sleep more productive. For example, if the UP3 detects a poor night's sleep, it can suggest alternatives to the fatty foods that people tend to crave after a night of inadequate rest.
The UP3 syncs data via Bluetooth to iPhone or Android smartphones, uploading it to Jawbone's servers for analysis. The app then displays sleep, activity, and health measurements over minutes, hours, days, weeks, and months. The UP3 promises more accurate sleep-tracking data, with a continuous recording of the user's pulse when they are asleep.
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It can track REM sleep
The UP3 can track REM sleep. This is because it can monitor heart rate to track sleep cycles. The UP3 uses electrical sensors that make contact with the skin to monitor sleep cycles and fitness in more detail than previous generations of the device.
REM sleep is the fourth stage of sleep and is characterised by relaxed muscles, quick eye movement, irregular breathing, elevated heart rate, and increased brain activity. The name comes from the rapid eye movement that occurs during this stage of sleep.
REM sleep is important for memory consolidation, emotional processing, brain development, and dreaming. Most adults need about two hours of REM sleep each night.
The UP3 can also track the other stages of sleep, including light sleep and deep sleep.
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It has a smart alarm function
The Jawbone UP3 is a slim strip of plastic with a flexible strap that sits tightly on the user's wrist. It has a "smart alarm" function, which, along with its enhanced sleep tracking capabilities, has been highlighted by users as a notable feature. The automatic sleep detection function of the UP3 means that there is no need to switch into sleep mode before going to bed. The device will track your sleep even if you forget to set the sleep mode.
The UP3's smart alarm function is designed to wake you up during a light sleep phase within a 30-minute window before your desired wake-up time. This is intended to ensure that you wake up feeling refreshed, as waking up during a light sleep phase is less jarring than waking up during a deep sleep phase. However, some users have reported that the smart alarm has failed to wake them up at all. As a result, it is recommended to set a second alarm for a few minutes after the smart alarm window closes, just in case.
The UP3's sleep tracking capabilities are more advanced than those of its predecessor, the Jawbone UP2, and most other fitness trackers. It can detect the different phases of sleep, including REM and deep sleep, using a heart rate monitor. This is an advantage over activity trackers that use motion to infer sleep, as they can only predict when a person falls asleep and not the important sleep cycles and quality of sleep. The UP3's heart rate monitor measures the user's resting heart rate just before they wake up and just after they fall asleep. This data is used as a measure of overall health, as it is not affected by caffeine or other factors like stress that can influence heart rate throughout the day.
The UP3 syncs data via Bluetooth to iPhone or Android smartphones, allowing users to view their sleep, activity, and health measurements over minutes, hours, days, weeks, and months.
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It has a slim design
The Jawbone UP3 is a slim strip of plastic with a flexible strap that can be adjusted to ensure a tight fit. This ensures that the metal contacts within the strap make good contact with the skin. The UP3 is just as slim as the UP2, its predecessor, but has enhanced sleep tracking and alarm functions. The UP3 costs £149.99 and is available in two colours: black and silver. It has a battery life of up to seven days and is waterproof up to depths of 10m (33ft).
The UP3 has a slim design that is comfortable to wear and can be easily adjusted to fit different wrist sizes. The flexible strap ensures that the device stays in place during sleep, providing accurate sleep tracking data. The slim design also makes it lightweight and portable, so it can be worn discreetly throughout the day and night without causing any discomfort.
The UP3's slim form factor also contributes to its aesthetic appeal. Its sleek and minimalist design gives it a modern and stylish look. The device is also available in different colour options, allowing users to choose the one that best suits their personal style or preferences.
In addition to its slim design, the UP3 offers advanced sleep tracking capabilities. It can detect different phases of sleep, such as REM and deep sleep, by monitoring the user's heart rate. This provides valuable insights into sleep quality and allows users to understand their sleep patterns and make informed decisions to improve their sleep hygiene.
The slim design of the UP3, coupled with its advanced sleep tracking features, makes it a popular choice for those seeking a discreet and effective way to monitor their sleep. Its flexibility, comfort, and accuracy in data collection make it a convenient tool for improving sleep quality and overall health.
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It offers advanced sleep tracking
The UP3 offers advanced sleep tracking. It uses new electrical sensors that make contact with the skin to monitor sleep cycles and fitness in more detail than ever before. The UP3 can detect the different phases of sleep using the heart rate monitor. It continuously records the user's pulse when they are asleep, showing when they shifted between the REM (rapid eye movement) stage and deep sleep. This is when the heart rate is fairly irregular and then more steady.
The UP3 can also automatically track different activities and sports, allowing the user to tag those active periods for better measurement of movements and the number of calories burned. It syncs the data via Bluetooth to iPhone or Android smartphones, uploading the data to Jawbone’s servers for analysis. The app can then display sleep, activity and health measurements over minutes, hours, days, weeks and months.
The UP3 can also be used to suggest ways to improve sleep quality. For example, if the device notices that the user sleeps better after a certain amount of exercise, it can suggest hitting that amount of steps regularly. If the user has a bad night’s sleep, the UP3 can detect this and, knowing the hormones released that make the user crave fatty foods, can suggest better alternatives and help make the next night’s sleep productive.
The UP3 has been described as having "enhanced sleep tracking" and a "smart alarm" function. The sleep tracking has been described as "accurate and consistent".
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Frequently asked questions
The UP3 uses electrical sensors that make contact with the skin to monitor the wearer's heart rate and track sleep cycles.
The UP3 uses metal studs to measure the wearer's heart rate continuously at night. It uses resting heart rate, measured just before waking up and just after going to sleep, as a measure of overall health.
The UP3 uses the heart rate monitor to detect the different phases of sleep. This is more accurate than activity trackers that use motion to infer sleep, which can only predict when a person falls asleep and not the sleep cycles and quality of that sleep.
The UP3 can detect the different phases of sleep, including REM sleep and deep sleep. This allows the device to provide insights into the quality of sleep, which can be used to suggest improvements to sleep habits and overall health.
