Samsung Galaxy Watch Ultra vs Samsung Galaxy Watch Ultra2
Both are good picks with different strengths. The Galaxy Watch Ultra lasts longer on GPS (48 hours), while the Galaxy Watch Ultra2 has a brighter screen and is slimmer.
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Key differences
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GPS
Evenly matched
Both have built-in GPS with similar features.
-
Display
Evenly matched
Both have AMOLED screens of a similar size.
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Health
Evenly matched
Much the same health sensors.
-
Weight
Evenly matched
Similar weight: 60.5 g and 61.5 g.
Which one should you choose?
Choose the Galaxy Watch Ultra if…
- You do long runs, rides or hikes: it's rated for 48 hours with GPS.
- You prefer its look and app: it covers the same essentials as the Galaxy Watch Ultra2.
Choose the Galaxy Watch Ultra2 if…
- You're outside a lot: its screen reaches 5,000 nits.
- You want it to slide under a sleeve: it's 10.7 mm thick.
- You want to pay from your wrist: it has contactless payments.
Full spec comparison
The Galaxy Watch Ultra leads on battery life; elsewhere the two are closely matched.
Green cells with a ✓ mark the better spec in that row. Tick "Show differences only" to hide the rows where they match.
Overview
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Brand | Samsung | Samsung |
| Series | Galaxy Watch | Galaxy Watch |
| Replaces | — | Galaxy Watch Ultra |
| Colours | Titanium Gray, Titanium Silver, Titanium White, Titanium Blue | Titanium Silver, Titanium Gray |
| Also sold as | Watch Ultra (2025) | Galaxy Watch Ultra 2 |
Platform & apps
Both work with the same phones and software.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Operating system | Wear OS | Wear OS |
| Works with | Android only | Android only |
| Minimum Android | Android 12 | Android 13 |
| Chipset | 3 nm Processor | Snapdragon Wear Elite Platform |
| RAM | 2,000 MB | — |
| Storage | 64 GB | 64 GB |
| App store | — | Yes |
Display
The Galaxy Watch Ultra2 is ahead on the display.
It has a brighter screen, and the Galaxy Watch Ultra doesn't beat it on anything here.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Display type | AMOLED | AMOLED |
| Display name | Super AMOLED | Super AMOLED |
| Screen size | 1.5 in | 1.52 in |
| Resolution | 480 x 480 | 498 x 498 |
| Pixel density | 327 ppi | 463 ppi |
| Peak brightness | 3,000 nits | 5,000 nits |
| Colour display | Yes | Yes |
| Always-on display | Yes | Yes |
| Touchscreen | Yes | — |
| Controls | — | touchscreen, buttons, action button |
Design & durability
The Galaxy Watch Ultra2 is ahead on size and durability.
It is slimmer, and the Galaxy Watch Ultra doesn't beat it on anything here.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Case sizes | 47 mm | 47 mm |
| Case shape | Round | — |
| Dimensions | 47.4 x 47.1 x 12.1 mm | 47.4 x 47.1 x 10.7 mm |
| Thickness | 12.1 mm | 10.7 mm |
| Weight (case) | 60.5 g | 61.5 g |
| Case material | Titanium | Titanium |
| Lens | Sapphire crystal | sapphire |
| Band material | Titanium | — |
| Band fitting | Dynamic Lug System | proprietary |
| Water resistance | 10 ATM | 10 ATM |
| IP rating | IP68 | IP69K |
| Water standard | — | ISO 22810:2010 |
| MIL-STD-810 tested | Yes | Yes |
| Operating temperature | -20 to 55 °C | -20 to 55 °C |
| Max altitude | 9,000 m | — |
Battery
The Galaxy Watch Ultra is ahead on battery life.
It lasts longer on GPS (48 hours), and the Galaxy Watch Ultra2 doesn't beat it on anything here.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Battery (smartwatch mode) | — | 2.5 days |
| Battery (GPS) | 2 days | 20 hours |
| All battery modes | Always-on display: 2.5 days; Battery saver: 4.2 days; GPS: 2 days | Always-on display: 2.5 days; Smartwatch: 3.3 days; GPS: 20 hours; Battery saver: 16 hours |
| Battery capacity | 590 mAh | 800 mAh |
| Battery type | Built-in battery | — |
| Charging | wireless | puck |
| Wireless charging | Yes | Yes |
| Full charge time | 96 min | — |
| Fast charging | — | Up to 40% in 30 mins |
GPS & navigation
Both have built-in GPS with similar capabilities.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| GPS | Built-in | Built-in |
| Multi-band GPS | Yes | Yes |
| Satellite systems | GPS, GLONASS, Galileo, BeiDou | GPS, GLONASS, BeiDou, Galileo, QZSS |
| Maps | — | Breadcrumb trail |
| Navigation features | turn-by-turn, back-to-start | turn-by-turn, back-to-start, climb planner, waypoints, course import |
Health & sensors
Both track much the same health data.
Heart rate, sleep and the extra sensors line up closely.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Sensors | optical HR, ECG electrode, skin temperature, accelerometer, gyroscope, barometer, compass | optical HR, ECG electrode, SpO2, skin temperature, accelerometer, gyroscope, barometer, compass, ambient light, depth |
| Heart-rate sensor | BioActive Sensor | BioActive |
| Heart-rate tracking | 24/7 | — |
| ECG | Yes | Yes |
| Irregular rhythm alerts | Yes | — |
| Heart-rate variability | Yes | — |
| Blood oxygen (SpO2) | — | Yes |
| Skin temperature | Yes | Yes |
| Blood pressure | cuff-calibrated | cuff-calibrated |
| Sleep tracking | Sleep coaching | Sleep coaching |
| Sleep apnea alerts | Yes | Yes |
| Stress tracking | Yes | — |
| Energy score | Energy Score | Energy Score |
| Cycle tracking | Yes | — |
| Body composition | Yes | Yes |
Safety
Both offer much the same safety features.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Emergency SOS | From the watch (LTE) | From the watch (LTE) |
| Fall detection | Yes | Yes |
| Siren | — | Yes |
Training
Training features are evenly matched.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Triathlon / multisport | Yes | — |
| Swim tracking | Pool | — |
| Training metrics | heart rate zones, Functional Threshold Power | VO2 max, training load, race predictor |
| Adaptive coaching | — | Yes |
| External sensors | power meter | power meter, speed/cadence |
| Smart trainer control | — | No |
Smart features
Both offer much the same smart features.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Notifications | — | Yes |
| Message replies | Android | Android |
| Calls on the watch | Yes | Yes |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Voice assistant | Bixby | Gemini |
| Contactless payments | — | Yes |
| Cellular | LTE version available | LTE version available |
| eSIM | Yes | Yes |
| Music storage | — | Yes |
| Offline music apps | — | Spotify, YouTube Music |
| Wi-Fi | Wi-Fi 4 (802.11n) | 802.11a/b/g/n 2.4GHz+5GHz |
| Bluetooth | Bluetooth 5.3 | Bluetooth 6.0 |
Diving, golf & more
Neither has a specialist edge here.
| Spec | Samsung Galaxy Watch Ultra | Samsung Galaxy Watch Ultra2 |
|---|---|---|
| Diving | — | Depth gauge |
| Max dive depth | 100 m | 40 m |
| Dive standard | — | EN 13319 |