How does Galaxy Watch Ultra2 compare to Galaxy Watch Ultra and Galaxy Watch9?
Galaxy Watch Ultra2 was crafted for those that need a watch that can keep up with their active lifestyle. It offers better dust resistance than the previous generation, now delivering an IP69K rating.3 Plus, it provides users with piece of mind, thanks to its 10 ATM certification4 for water resistance. Galaxy Watch Ultra2 also stands out from the previous generation and Galaxy Watch9 with its professional diving EN13319 certification5 alongside the ability to automatically track real-time diving data such as depth, time, and water temperature right from the wrist.
Additional advanced diving features, including ascent/descent speed tracking and safe dive limits are expected to be available later this year through an exclusive Ultra2 Diving app6 developed with Mares,7 the world’s leading diving equipment brand.
Enabling these experiences is the powerful Snapdragon Wear Elite platform, and a massive 800 mAh battery — a 35% increase over last generation. Galaxy Watch Ultra2 is also the world’s first smartwatch with up to 5,000 nits of brightness,8 so users can enjoy their favorite features anytime, anywhere.
Everyone can enjoy the benefits of Galaxy Watch Ultra2, whether you’re trying to reach a new personal best, looking to become more active, or interested in tracking certain wellness markers, like sleep quality. It offers a range of powerful features, including:
- Sleep Apnea feature:9 Backed by FDA clearance, it delivers insights into possible moderate to severe sleep apnea during sleep.
- Vitals:10 monitors a user’s personal health baseline during sleep and provides seamless alerts for significant deviations.

- Hearing:11 Helps protect long-term hearing health with alerts for unsafe noise levels.
It’s all about finding the right device for your needs. Galaxy Watch Ultra2 provides rugged and fitness-optimized experiences that keep up with an active lifestyle. At Unpacked, Galaxy Watch9 was also unveiled, delivering a versatile watch for those focused on tracking their everyday biomarkers in a lightweight design. Both devices now available for pre-order in the U.S. with general availability starting August 7.
Learn more about Galaxy Watch Ultra2 and Galaxy Watch9 at Samsung.com.
1 Requires a compatible Android smartphone. Must select map from Samsung Health App or upload compatible GPX file.
2 Requires initial setup in Samsung Health app, a compatible phone and Samsung account.
3 Consistent with IP69K rating: highest dust resistance available on IP scale; water-resistance for protection against ingress under high pressure washdown and jets (1,160 to 1,450 PSI). Rinse residue/dry after wet. Water-Resistance is not a permanent condition and can diminish over time.
4 Consistent with 10ATM water-resistance classification, up to 100m of water for up to 10 minutes. Tested in 5% salty water and 4ppm chlorine water. Rinse residue/dry after wet. Water resistance is not a permanent condition and can diminish over time.
5 Galaxy Watch Ultra2 has a water resistance rating of 100 meters according to the ISO22810 standard. The test was conducted in 5% salt water and 4 ppm chlorine water. Galaxy Watch Ultra2 is also water resistant with an IPX8 rating based on lab test conditions for submersion in up to 1.5 meters of freshwater for up to 30 minutes and an IPX9K rating based on lab test conditions for water resistance against powerful water jets. Galaxy Watch Ultra2 has obtained EN13319, which is a standard applicable to instruments measuring water depth by the environmental pressure as used by divers and also the dive time in certain conditions. Water resistance is not a permanent condition and can diminish over time. If device has been exposed to seawater, user should rinse it in freshwater and dry after use. Refer to the user manual for further information, including care/use instructions. Galaxy Watch Ultra2 is dust resistant with an IP6X rating based on lab test conditions by a third party: 2 kg of talc powder (max. diameter of 0.05 mm) per cubic meter was blown into a test chamber housing the device (air pressure within device kept below surrounding air) for 2 hours. Dust resistance may vary by actual usage conditions. Galaxy Watch Ultra2 has obtained MIL-STD-810H Certification: high/low temperature, altitude, humidity, immersion, salt fog, dust, vibration, drop, etc. MIL-STD-810H is a standardized form of testing designed by the U.S. military to accurately assess device limitations. Real-world usage may vary by specific environmental conditions used in the testing. Extreme conditions not guaranteed. Galaxy Watch Ultra2 withstands temperatures ranging from -20°C to 55°C while being worn on the wrist, based on results from internal lab tests conducted by Samsung. Actual performance may vary depending on the environment where it is used. In very high or low temperatures, charging may be blocked, certain functions may be automatically terminated or unavailable, or the watch may shut down automatically for safety. Additionally, battery performance can be adversely affected at low temperatures.
6 Free features are limited to depth measuring, dive timer and ascent rate alarm. Additional features require a subscription fee. To be used for recreational scuba diving up to 40 meters; should not be used for diving below 40 meters.
7 The Mares app is a third-party app, expected to launch in the second half of 2026. Requires download.
8 Based on market research of globally released smartwatches as of June 2026. The 5,000-nit specification refers to the localized peak brightness achieved under high ambient light, and full-screen brightness may differ. Actual brightness may vary or be limited depending on environmental factors, device temperature and usage conditions.
9 The Samsung Sleep Apnea Feature is listed by Samsung Electronics Co., Ltd. Mobile Experience Business with the U.S. Food and Drug Administration as an over the-counter device to assess risk of sleep apnea. This device is intended to provide a notification of the risk of sleep apnea in users who have not been previously diagnosed with sleep apnea. It uses software algorithms to analyze input sensor signals and provide a risk assessment for sleep apnea. It is not intended to provide a stand-alone diagnosis, replace traditional methods of diagnosis (e.g., polysomnography), assist clinicians in diagnosing sleep disorders, or be used as an apnea monitor. Consult your physician if you have any questions regarding sleep apnea. Availability may vary by market, carrier, model or a paired smartphone.
10 Requires a compatible Samsung Galaxy phone, Samsung Health app and Samsung account. Requires initial setup wearing watch for 7 out of 28 nights. The Vitals software functions are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
11 Feature must be activated from the Watch to be used (Samsung Health > Hearing > Settings > Sound Monitoring “On”).