Watches & wearables / Review roundup

Samsung Galaxy Watch Ultra 2

Samsung Galaxy Watch Ultra 2

Samsung Galaxy Watch Ultra 2 reviewed by Tom’s Guide
Image: Tom’s GuidePhoto from the review; Samsung Galaxy Watch Ultra 2

Roundup updated 2026-10-12 · Evidence from 2 review sources

What reviewers found

Quick verdict

The 1.52-inch AMOLED display reaches 5000 nits peak brightness, keeping the screen clearly readable outdoors even under intense midday sunlight. Utilizing the full-fledged dive computer features through the partnered Mares app requires an ongoing subscription fee.

How we work

At a glance

The catch

Key health tracking tools like ECG, blood pressure monitoring, and sleep apnea detection are restricted exclusively to Samsung smartphones.; Utilizing the full-fledged dive computer features through the partnered Mares app requires an ongoing subscription fee.

Compare with Garmin Forerunner 970 →

Where to buy

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What reviewers found

Display

The 1.52-inch AMOLED display reaches 5000 nits peak brightness, keeping the screen clearly readable outdoors even under intense midday sunlight.

Trusted Reviews · 2026-07-22

Price and ownership

Utilizing the full-fledged dive computer features through the partnered Mares app requires an ongoing subscription fee.

Tom’s Guide · 2026-09-17

Battery and charging

The watch exceeded its official battery rating in testing, running for roughly 72 hours per charge with the always-on display enabled.

Tom’s Guide · 2026-09-17

Comfort and design

The included strap is softer and more flexible than the original model's band while maintaining the same attachment system.

Tom’s Guide · 2026-09-17

Tracking

Key health tracking tools like ECG, blood pressure monitoring, and sleep apnea detection are restricted exclusively to Samsung smartphones. During outdoor testing across cycling and hiking workouts, the watch repeatedly overinflated elevation and climb data. The watch lacks specific built-in tracking modes for popular outdoor activities such as mountain biking and e-biking.

Trusted Reviews · 2026-07-22Tom’s Guide · 2026-09-17

Strengths and limitations

Pros

  • The 1.52-inch AMOLED display reaches 5000 nits peak brightness, keeping the screen clearly readable outdoors even under intense midday sunlight.
  • The included strap is softer and more flexible than the original model's band while maintaining the same attachment system.
  • The watch exceeded its official battery rating in testing, running for roughly 72 hours per charge with the always-on display enabled.

Cons

  • Key health tracking tools like ECG, blood pressure monitoring, and sleep apnea detection are restricted exclusively to Samsung smartphones.
  • Utilizing the full-fledged dive computer features through the partnered Mares app requires an ongoing subscription fee.
  • During outdoor testing across cycling and hiking workouts, the watch repeatedly overinflated elevation and climb data.
  • The watch lacks specific built-in tracking modes for popular outdoor activities such as mountain biking and e-biking.
BENCHMARK COVERAGE

No chart-ready results

No chart-ready benchmark dataset is currently stored for this model.

Individual review evidence

Trusted Reviews · High screen brightness

The 1.52-inch AMOLED display reaches 5000 nits peak brightness, keeping the screen clearly readable outdoors even under intense midday sunlight.

Trusted Reviews

Trusted Reviews · Samsung-exclusive health features

Key health tracking tools like ECG, blood pressure monitoring, and sleep apnea detection are restricted exclusively to Samsung smartphones.

Trusted Reviews

Tom’s Guide · Mares App Subscription Cost

Utilizing the full-fledged dive computer features through the partnered Mares app requires an ongoing subscription fee.

Tom’s Guide

Tom’s Guide · Strap Comfort

The included strap is softer and more flexible than the original model's band while maintaining the same attachment system.

Tom’s Guide

Tom’s Guide · Inaccurate Elevation Tracking

During outdoor testing across cycling and hiking workouts, the watch repeatedly overinflated elevation and climb data.

Tom’s Guide

Tom’s Guide · Missing Activity Modes

The watch lacks specific built-in tracking modes for popular outdoor activities such as mountain biking and e-biking.

Tom’s Guide

Tom’s Guide · Long Battery Runtime

The watch exceeded its official battery rating in testing, running for roughly 72 hours per charge with the always-on display enabled.

Tom’s Guide

Specifications

Check case size, phone compatibility and which features need a subscription.

Trusted Reviews · Samsung Galaxy Watch Ultra 2

Screen Size
1.52 inches
IP rating
IP69K
Waterproof
10ATM
Battery
800 mAh
Operating System
Wear OS with One UI
GPS
Yes
Trusted Reviews

Tom’s Guide · Samsung Galaxy Watch Ultra 2

Dimensions
47 x 47 x 10 mm
Weight
61.5 g
Display
1.52-inch AMOLED, 5,000 nits max brightness
Water resistance
100 meters
Tom’s Guide

Published reviews & comparisons

Specification references

Trusted Reviews — The reviewed configuration isn’t specified here.

Tom’s Guide — The reviewed configuration isn’t specified here.

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