Samsung Galaxy Watch to Get Bedtime Guidance, Vascular Load Features With One UI 8 Watch Update

One UI 8 Watch will soon be available under Samsung's beta programme before its public release.

Written by Shaurya Tomer, Edited by Siddharth Suvarna | Updated: 17 June 2025 13:01 IST

Samsung Galaxy Watch to Get Bedtime Guidance, Vascular Load Features With One UI 8 Watch Update

Photo Credit: Samsung

The features will be compatible with Android phones and require the Samsung Health app

Highlights

One UI 8 Watch will bring three health new features to Galaxy Watch
Vascular Load tracks stress on the vascular system during sleep sessions
Antioxidant measurement checks beta carotene levels via BioActive sensor

Samsung on Monday announced several new features that will be making their way to the Galaxy Watch with the One UI 8 Watch update. These are aimed at helping users develop healthier habits. As per the company, it will bring Bedtime Guidance, a feature which informs about the best time to go to sleep by analysing the sleep data from the past three days. Meanwhile, Vascular Load measures the amount of stress on the vascular system during sleep. Samsung says some of the features will be restricted to select Galaxy Watch models.

New Health Features in One UI 8 Watch

Samsung detailed the One UI 8 Watch features in a newsroom post. The company says its new Bedtime Guidance feature informs the user about their optimal bedtime. The Galaxy Watch evaluates sleep pressure and circadian rhythm by analysing the sleep data recorded over the previous three days.

Then, it suggests a bedtime that is optimal for maximum alertness the next day. The company claims this feature is helpful for users who are on road to recovery from irregular sleep periods.

Vascular Load will be available on Galaxy Watch Ultra and later models
Photo Credit: Samsung

Vascular Load is another new feature which will be introduced on the Galaxy Watch with One UI 8 Watch. As the name suggests, it measures the amount of stress on the vascular system during sleep and provides insights into the vascular load on the system, along with sleep, exercise and stress. Users are required to wear their smartwatch during sleep for the feature to work.

Samsung says it has designed the Running Coach feature to help users train safely for rigorous physical activities, such as a marathon. It provides real-time guidance and a personalised training regime with injury-prevention routines based on the wearer's fitness levels. To take advantage of Running Coach, users have to wear the Galaxy Watch and run for 12 minutes, which provides a performance analysis and a running score between 1 and 10. Based on this collected data, the smartwatch creates a training plan to support a marathon.

The last feature is Antioxidant measurement, which was also recently reported to arrive with the Galaxy Watch 8 series. Samsung says it measures beta carotene levels in five seconds, leveraging the light-activated BioActive Sensor at the back of the Galaxy Watch. The feature provides insights about behavioural changes, motivating users to adopt healthier habits.

Antioxidant Index, along with Vascular Load, is only available on Galaxy Watch Ultra and later models. All three features are compatible with Android phones running Android 10 or above firmware and require the Samsung Health app.

Samsung Galaxy Watch Ultra

REVIEW
KEY SPECS
NEWS

Design and comfort
Tracking accuracy
Software and ecosystem
Battery life

Good
Bright display
Dynamic watch faces
Rugged design
Several strap options
One UI works flawlessly
Reliable health tracking features

Bad
Goodbye rotating bezel
Shaky GPS
ECG and BP features locked to Samsung devices

Read detailed Samsung Galaxy Watch Ultra review

Strap Material Silicone

Dial Shape Round

Display Type Super AMOLED

Ideal For Unisex

More Samsung Smartwatches

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Further reading: Samsung Galaxy Watch, One UI 8 Watch, One UI 8, Samsung Galaxy Watch Ultra, Samsung, Samsung Galaxy Watch 8

Shaurya Tomer

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Shaurya Tomer is a Sub Editor at Gadgets 360 with 2 years of experience across a diverse spectrum of topics. With a particular focus on smartphones, gadgets and the ever-evolving landscape of artificial intelligence (AI), he often likes to explore the industry's intricacies and innovations – whether dissecting the latest smartphone release or exploring the ethical implications of AI advancements. In his free time, he often embarks on impromptu road trips to unwind, recharge, and ...More