Apple Watch Series 9 vs Samsung Galaxy Watch Ultra
Apple Watch Series 9 excels with its refined design at 38.7g, vibrant always-on LTPO OLED display, and seamless ecosystem integration for iPhone users. Samsung Galaxy Watch Ultra counters with superior durability (titanium Grade 4, MIL-STD-810H certification), significantly brighter 3000-nit Super AMOLED screen, and dramatically longer battery life (60 hours vs 18 hours). Both offer comprehensive health tracking including ECG, SpO2, and skin temperature. The Series 9 suits users prioritizing elegance and iOS integration, while the Watch Ultra appeals to outdoor enthusiasts and Android users demanding ruggedness and extended autonomy. At $250 more, Samsung's offering justifies premium pricing through durability and endurance. Choose Series 9 for lifestyle sophistication; select Ultra if adventure and multi-day battery matter most.
Full Specifications
| Spec | Apple Watch Series 9 | Samsung Galaxy Watch Ultra |
|---|---|---|
| Software | watchOS 10 | Wear OS 5 with One UI Watch 6 |
| Body | ||
| Weight | 38.7 g (aluminum) | 60.5 g |
| Case material | Aluminum or stainless steel | Titanium Grade 4 |
| Water resistance | WR50 / EN13319 | 10ATM + IP68 + MIL-STD-810H |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 18 hrs, up to 36 hrs Low Power Mode | Up to 60 hours in Power Saving mode (590 mAh) |
| Display | ||
| Size | 45 mm | 47mm (1.5") |
| Type | Always-On Retina LTPO OLED | Super AMOLED with Sapphire Crystal glass, up to 3000 nits |
| Always-on display | ||
| Resolution | 484 x 396 | 480 x 480 |
| Processor | ||
| RAM | 1 GB | 2 GB |
| Chipset | Apple S9 SiP | Samsung Exynos W1000 (3nm, 5-core) |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.3 | 5.3 |
Category Scores
Pros & Cons
Apple Watch Series 9
Pros
- S9 chip enables on-device Siri and the new Double Tap gesture
- Comprehensive health suite: ECG, SpO2, temperature, crash detection
- Brightest Apple Watch display at up to 2000 nits
- Seamless deep integration with iPhone and Apple ecosystem
- Wide variety of bands and cases for personalization
Cons
- 18-hour battery life requires daily charging
- Only useful if you own an iPhone — no Android support
- Cellular model adds significant ongoing carrier cost
- Incremental upgrade over Series 8 for existing owners
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
Related Comparisons
Explore more in smartwatches, see all Apple products or all Samsung products. View full details for the Apple Watch Series 9 or the Samsung Galaxy Watch Ultra.