Galaxy Watch Ultra2 vs Galaxy Watch Ultra (2025)

Galaxy Watch Ultra2 and Galaxy Watch Ultra (2025) are 2026 and 2025 smartwatches from the same product line. This comparison separates the catalog's listed specifications from missing information and approximate values. It covers 18 fields, including 8 exact differences; it does not choose a winner.

Specifications side by side

FieldGalaxy Watch Ultra2Galaxy Watch Ultra (2025)
Release year20262025
Case sizesNot listed47 mm
Display1.52-inch 498×498 Super AMOLEDSuper AMOLED, Always-On
Brightness5000 nits3000 nits
Battery, as listed800mAh · up to 4 days590 mAh, up to 60 hrs (AOD on) / 100 hrs (Power Saving)
Operating systemWear OS 7 · One UI 9 WatchWear OS + One UI Watch
Phone compatibilityAndroidAndroid
Cellular connectioneSIM · LTEeSIM · LTE
Water ratingNot listed10ATM + IP68
GlassSapphireSapphire
Case materialTitaniumTitanium
GPSDual-frequency GNSSDual-frequency GNSS
MapsYesNo
Payment systemSamsung WalletSamsung Wallet
Plan requirementNot requiredNot required
Listed sensors and featuresSleep apnea, ECG, HRV, Readiness score, SpO2, Skin temperatureSleep apnea, Body composition (BIA), Blood pressure trend, ECG, HRV, SpO2, Skin temperature
Safety featuresFall detection, SOS callingFall detection, siren, SOS calling
Hardware flashlightNoNo

"Not listed" means the catalog has no usable value for that field. It does not mean the watch lacks the feature. Approximate values stay visible but do not support the difference count or numeric deltas.

Where they differ

Where they are the same

Which one fits you

Galaxy Watch Ultra2 is listed as a smartwatch compatible with Android. Start with that phone requirement before comparing the other rows. The exact differences above are a way to identify which listed specifications matter to your use, not evidence that the later generation is better in every respect.

Galaxy Watch Ultra (2025) is listed as a smartwatch compatible with Android. Start with that phone requirement before comparing the other rows. The exact differences above are a way to identify which listed specifications matter to your use, not evidence that the later generation is better in every respect.

Information is missing on at least one side for: Case sizes, Water rating. Those rows are excluded from the exact difference count.

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