Apple Watch SE (1st Gen) vs Apple Watch Ultra (1st Gen)
The Verdict
Apple Watch SE 1st Gen serves casual users seeking essential fitness tracking at an accessible price, featuring a lightweight aluminum design, 18-hour battery life, and basic health monitoring through heart rate and sleep tracking. Apple Watch Ultra 1st Gen targets serious athletes and adventurers with premium titanium construction, advanced health sensors including ECG, blood oxygen, and skin temperature monitoring, plus extended 36-hour battery life and recreational scuba certification. Display differences are notable: SE lacks always-on capability while Ultra offers a larger 49mm always-on LTPO OLED screen. Performance gaps matter too, with Ultra's S8 chip outpacing SE's S5. For most consumers, SE delivers solid value with watchOS compatibility and core features. However, those requiring comprehensive health data, extended battery endurance, or diving capability should invest in Ultra's superior durability and sensor suite. SE wins on affordability and portability; Ultra dominates on capability and longevity.
Who Should Buy
Buy the Apple Watch SE (1st Gen) if…
- →Affordable entry into the Apple Watch ecosystem with core features
- →Same large display as Series 6 — no visible compromise
- →Fall detection and emergency SOS for safety
Buy the Apple Watch Ultra (1st Gen) if…
- →Titanium case is exceptionally durable for extreme sports and diving
- →36-hour battery life (60 hrs in Low Power Mode) is longest for Apple Watch
- →2000-nit peak brightness is readable in any outdoor condition
Category Scores
Pros & Cons
Apple Watch SE (1st Gen)
Pros
- Affordable entry into the Apple Watch ecosystem with core features
- Same large display as Series 6 — no visible compromise
- Fall detection and emergency SOS for safety
- Compass and always-on altimeter for outdoor activities
- Family Setup enables use for kids without an iPhone
Cons
- No Always-On display — must raise wrist to see the time
- Older S5 chip — slower than the 2022 SE's S8
- No ECG, SpO2, or blood oxygen monitoring
- No fast charging — takes about 2.5 hours for full charge
Apple Watch Ultra (1st Gen)
Pros
- Titanium case is exceptionally durable for extreme sports and diving
- 36-hour battery life (60 hrs in Low Power Mode) is longest for Apple Watch
- 2000-nit peak brightness is readable in any outdoor condition
- Dual-frequency L1+L5 GPS provides precise tracking even in canyons
- Action Button is customizable for workouts, compass, and more
Cons
- 49mm case is very large — may be too bulky for smaller wrists
- Heavy at 61.3 g compared to standard Apple Watch models
- $799 is expensive for a first-generation product
- S8 chip is the same as Series 8 — no processing advantage
- Only one 49mm size option with no smaller variant
Full Specifications
| Spec | Apple Watch SE (1st Gen) | Apple Watch Ultra (1st Gen) |
|---|---|---|
| Software | watchOS 7 (upgradable to watchOS 10) | watchOS 9 (upgradable to watchOS 11+) |
| Body | ||
| Weight | 30.49 g (40mm) / 36.2 g (44mm) | 61.3 g |
| Case material | Aluminum | Titanium |
| Water resistance | WR50 (50m) | WR100, EN13319 (certified for recreational scuba diving to 40m) |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 18 hours | Up to 36 hours (60 hrs in Low Power Mode) |
| Display | ||
| Size | 40mm / 44mm | 49mm |
| Type | LTPO OLED Retina | LTPO OLED Always-On Retina |
| Always-on display | ||
| Resolution | 324 x 394 / 368 x 448 | 410 x 502 |
| Processor | ||
| Chipset | Apple S5 SiP | Apple S8 SiP |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.3 |
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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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