Samsung Galaxy Watch 3 vs Samsung Galaxy Watch Ultra
The Verdict
Samsung's flagship Ultra represents a significant generational leap over the Galaxy Watch 3. Display quality stands out dramatically,the Ultra's 480x480 Super AMOLED with sapphire crystal and 3000-nit peak brightness dwarfs the Watch 3's 360x360 panel, delivering superior readability in sunlight. Battery performance is transformative: the Ultra stretches to 60 hours in Power Saving mode versus the Watch 3's typical 1.5-day runtime, fundamentally changing daily charging requirements. Health tracking expands with skin temperature monitoring on the Ultra, while both offer ECG and SpO2. The Wear OS 5 platform with One UI Watch 6 brings better app compatibility and responsiveness compared to Tizen OS 5.5. Build quality tips toward Ultra with Grade 4 titanium and enhanced 10ATM water resistance, though the Watch 3 remains solidly constructed. At $649.99 versus $399, the Ultra demands justification through its superior battery life alone,perfect for fitness enthusiasts and travelers. Choose the Watch 3 for budget-conscious buyers accepting daily charging; select the Ultra for those prioritizing battery longevity and cutting-edge features.
Who Should Buy
Buy the Samsung Galaxy Watch 3 if…
- →Physical rotating bezel provides tactile, satisfying navigation
- →Premium stainless steel build with classic watch aesthetics
- →ECG and SpO2 monitoring were cutting-edge at launch
Buy the Samsung Galaxy Watch Ultra if…
- →Premium titanium build with 10ATM water resistance and MIL-STD durability
- →Bright 3000-nit Super AMOLED display with sapphire crystal protection
- →Dual-frequency GPS (L1 + L5) for precise outdoor tracking
Category Scores
Pros & Cons
Samsung Galaxy Watch 3
Pros
- Physical rotating bezel provides tactile, satisfying navigation
- Premium stainless steel build with classic watch aesthetics
- ECG and SpO2 monitoring were cutting-edge at launch
- Fall detection with automatic SOS alerts
- Thinner and lighter than Galaxy Watch (2018)
Cons
- Tizen OS is now discontinued — no new app development
- Battery life of 1.5 days typical requires frequent charging
- Older Exynos 9110 is noticeably slower than W920
- Heavy at 48-54 g — uncomfortable for sleep tracking
Samsung Galaxy Watch Ultra
Pros
- Premium titanium build with 10ATM water resistance and MIL-STD durability
- Bright 3000-nit Super AMOLED display with sapphire crystal protection
- Dual-frequency GPS (L1 + L5) for precise outdoor tracking
- Big 590 mAh battery delivers up to 100 hours in Power Saving mode
- Customizable Quick Button for fast access to workouts and apps
Cons
- Very expensive at $649 — Samsung's priciest watch yet
- Only one 47mm size, too large for smaller wrists
- BioActive sensor and BP/ECG features require Samsung phone
- Design closely mimics Apple Watch Ultra
- Limited third-party app ecosystem versus Apple Watch
Full Specifications
| Spec | Samsung Galaxy Watch 3 | Samsung Galaxy Watch Ultra |
|---|---|---|
| Software | Tizen OS 5.5 | Wear OS 5 with One UI Watch 6 |
| Body | ||
| Weight | 48.2 g (41mm) / 53.8 g (45mm) | 60.5 g |
| Case material | Stainless Steel / Titanium | Titanium Grade 4 |
| Water resistance | 5ATM + IP68, MIL-STD-810G | 10ATM + IP68 + MIL-STD-810H |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 2 days (typical ~1.5 days) | Up to 60 hours in Power Saving mode (590 mAh) |
| Display | ||
| Size | 41mm / 45mm | 47mm (1.5") |
| Type | Super AMOLED | Super AMOLED with Sapphire Crystal glass, up to 3000 nits |
| Always-on display | ||
| Resolution | 360 x 360 | 480 x 480 |
| Processor | ||
| Chipset | Exynos 9110 | Samsung Exynos W1000 (3nm, 5-core) |
| RAM | — | 2 GB |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.3 |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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