Samsung Galaxy Watch 8 Ultra (2025), 47mm, LTE

Features and technical details

Welcome to the new era of AI-powered health Built to push boundaries, Galaxy Watch Ultra withstands up to 55 °C heat, 9,000 m altitude, 10 ATM water pressure and runs smoothly through it all with a new, powerful 3 nm processor.

Trek further with battery that lasts up to 100 hours in Power saving mode.

The new BioActive Sensor tracks you closely and Galaxy AI provides the insights, guiding you to push your limits.

Now available in Titanium Blue — a shade that embodies resilience and is ready to journey wherever you choose to go.

Galaxy Watch Ultra comes in Titanium Gray, Titanium Silver, Titanium White and now — Titanium Blue.

The new color adds a fresh option to the range, each stunning in its own way.

With versatile bands to match, all four colors epitomize the bold spirit of Galaxy Watch Ultra.

Whether scaling cliffs or trekking for days, push boundaries without worrying about recharging.

Instantly switch between modes — Exercise power saving mode for tracking workouts or Power saving mode for long-term use.

Stay powered up for whatever thrills come your way.

Now upgraded with a large 64 GB storage, record even more GPX data and reach new heights.

If you're in trouble, press and hold the Quick Button for 5 seconds to activate a powerful siren for help.

A piercing 86-decibel sound can be heard up to 180 meters away, breaking through a forest of trees.

When GPS isn't enough for you, the Watch is there with an SOS.

It detects falls, offers SOS via the home button, and provides instant access to Medical info.

Get off the road and create your own.

Fill your adventure with unexpected twists and turns.

Stay on track even in the pitch dark.

When night falls, the display automatically switches to Night mode, preserving your night vision.

Continue your overnight adventure without missing a glimpse of the Milky Way.

Jump straight into your favorite endurance sports like triathlon, duathlon, aquathlon and more with new Multisport Tile, at the press of the Quick Button.

Too easy?

Craft your own ultimate challenge to push your limits.

Our most accurate GPS ever on Galaxy Watch keeps you on course, even through densely packed buildings.

Incorporating both L1 and L5 frequency bands, Galaxy Watch Ultra tracks you with pinpoint accuracy.

Discover your body's potential with Energy Score.

Galaxy AI analyzes key indicators of your overall condition and gives you a daily score.

How's your score today?

Ready to challenge yourself?

If not, fine-tune your sleep, exercise and more to get your body in shape to step it up.

Maximize your pedal power and go the extra mile.

With a power meter paired with your Samsung Galaxy smartphone, Galaxy AI quickly estimates the Functional Threshold Power based on your own heart rate within 10 minutes of a ride.

Set your training intensity according to your FTP and hit your peak performance.

Top-notch performance begins with quality sleep.

Keep tabs on your sleep stages, duration, heart rate, blood oxygen and even snoring.

Then, receive coaching on ways to better understand your sleep pattern.

Sleep soundly — and safely.

The Galaxy Watch Ultra keeps an eye on your sleep behavior and helps detect potential sleep problems.

For the first time ever on Galaxy Watch, it offers Sleep apnea feature.

Maintain a healthy lifestyle by adding a quick checkup to your workout routine — from blood pressure to Bioelectrical Impedance Analysis.

If it detects an irregular heart rhythm, take an ECG to examine your heart rhythm in more detail, right on your wrist.

Mind your diet and be your best self.

Advanced Glycation End-products(AGEs) index is an indicator of your metabolic health, affected by your diet and lifestyle.

Galaxy Watch Ultra measures your AGEs index during your sleep, letting you check the results right on your wrist.

Monitor your dietary intake, improve your lifestyle and maintain peak performance.

Monitor your cardiovascular health effortlessly and continue to explore the great outdoors.

While you sleep, Vascular Load keeps track of your cardiovascular strain, delivering results directly to you through the Samsung Health app the next day.

Compare the results to your baseline measurement and make thoughtful choices for a stronger, healthier you.

Access and manage comprehensive information about your health and overall well-being through the Samsung Health app on your Samsung Galaxy devices.

Integrate detailed insights to strive toward your wellness goals.

tart your Galaxy Wearable experience on your Android smartphone.

Pair your Galaxy Watch, Buds or Ring easily with the Android phone you already have.

Just download the Galaxy Wearable and Samsung Health apps on Google Play, and you're good to go.

You can even try out different watch faces on the Galaxy Wearable app—mix and match various features to your liking.

Maximize productivity with Galaxy Watch Ultra, even on the go.

Google Gemini is your conversational and capable assistant that you can speak to naturally using your voice.

Ask for help to create a message to your friend saying that you’re running late, or summarize your last email out loud.

You can even tell Gemini to remember important information like where you parked or which locker you used – all from your wrist.

Reply to your buddies instantly in just the right tone.

Galaxy AI analyzes previous messages in your chat and offers quick reply suggestions that match the mood.

Capture photos, answer calls or silence alarms — all with just a Double Pinch.

Galaxy Watch Ultra is even more powerful when paired with other Samsung Galaxy devices.

Stay in control, stay connected.