Apple Apple Watch Ultra 3 vs Apple Apple Watch Series 4
Apple Apple Watch Ultra 3 ($799) vs Apple Apple Watch Series 4 ($73) — side-by-side specs, weight, pros and cons to help you pick the right smartwatch.
Spec-by-spec
| Spec | Apple Apple Watch Ultra 3 | Apple Apple Watch Series 4 |
| Price | $799 | $73 |
| Weight | 61g | 36.7g |
| Case | 49mm Titanium | — |
| Battery | 36h / 72h low power | — |
| GPS | Dual-frequency L1+L5 | — |
| WR | 100m | 50m |
| Display | Always-on LTPO | 30% larger Retina OLED vs Series 3 |
| Chip | S10 | S4, 64-bit dual-core |
| Sensors | — | Electrical + optical heart sensor, ECG |
| Safety | — | Fall detection |
| Weight | — | 36.7g (Apple published, 44mm Aluminum) |
Pros & Cons
Apple Apple Watch Ultra 3
- 36h battery life
- Dual-frequency precision GPS
- Satellite SOS emergency
- Rugged titanium case
- Best Apple Watch ever made
- $799 very expensive
- iPhone-only ecosystem
- Large 49mm case size
Apple Apple Watch Series 4
- First Apple Watch with an ECG sensor
- Meaningfully larger display in the same case size class
- Fall detection, a safety feature that debuted here
- Digital Crown haptic feedback, still felt today
- No always-on display
- watchOS support window is closing
- Speaker and mic are a generation behind current models
- Battery health on a used unit is unverifiable before buying
Apple Apple Watch Series 4 is the better value at $73. Both are part of our curated smartwatch index — tap through to check current pricing.