Apple Watch Series 6 vs Samsung Galaxy Watch 4
The Verdict
Apple Watch Series 6 delivers a premium experience with its proven watchOS ecosystem, excellent app library, and seamless iPhone integration, though it trails in battery longevity at 18 hours. Samsung Galaxy Watch 4 counters with superior battery performance (up to 40 hours claimed, realistic ~20 hours), a sharper Super AMOLED display with higher pixel density, and military-grade durability at a $150 lower price point. Both feature identical health sensors including ECG and blood oxygen monitoring. The S6 chip provides reliable performance, while Samsung's Exynos W920 handles Wear OS 3 competently. Health tracking capabilities are functionally equivalent on both devices. For iPhone users valuing ecosystem cohesion, the Series 6 justifies its premium; Android users or those prioritizing battery endurance and value will find the Galaxy Watch 4 exceptionally compelling. Samsung's watch edges ahead overall due to significantly better battery life and display quality at a substantially lower price.
Who Should Buy
Buy the Apple Watch Series 6 if…
- →First Apple Watch with blood oxygen (SpO2) monitoring
- →Always-On display is 2.5x brighter outdoors than Series 5
- →U1 chip enables precise Find My features and car key unlock
Buy the Samsung Galaxy Watch 4 if…
- →First Samsung watch with Wear OS and Google apps integration
- →BIA sensor for body composition measurement (body fat, muscle mass)
- →Lightweight and slim design comfortable for all-day wear
Category Scores
Pros & Cons
Apple Watch Series 6
Pros
- First Apple Watch with blood oxygen (SpO2) monitoring
- Always-On display is 2.5x brighter outdoors than Series 5
- U1 chip enables precise Find My features and car key unlock
- S6 chip is 20% faster than S5 — noticeably snappier
- Multiple premium case materials including titanium and blue aluminum
Cons
- 18-hour battery still requires daily charging
- SpO2 readings are for wellness only — not medical grade
- No keyboard input — smaller bezels came in Series 7
- Charging speed is slow compared to Series 7+
Samsung Galaxy Watch 4
Pros
- First Samsung watch with Wear OS and Google apps integration
- BIA sensor for body composition measurement (body fat, muscle mass)
- Lightweight and slim design comfortable for all-day wear
- ECG and blood pressure monitoring (Samsung phones only)
- Affordable entry into Samsung's smartwatch ecosystem
Cons
- Battery life of 20 hours typical requires daily charging
- Gorilla Glass DX+ scratches more easily than sapphire crystal
- Many health features locked to Samsung Galaxy phones
- Wear OS 3 was buggy at launch with limited app support
Full Specifications
| Spec | Apple Watch Series 6 | Samsung Galaxy Watch 4 |
|---|---|---|
| Software | watchOS 7 (upgradable to watchOS 11+) | Wear OS 3.0 (One UI Watch 4) |
| Body | ||
| Weight | 30.5 g (40mm Al) / 36.2 g (44mm Al) | 25.9 g (40mm) / 30.3 g (44mm) |
| Case material | Aluminum / Stainless Steel / Titanium | Aluminum with Corning Gorilla Glass DX+ |
| Water resistance | WR50 (50m) | 5ATM + IP68, MIL-STD-810G |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 18 hours | Up to 40 hrs (typical ~20 hrs) |
| Display | ||
| Size | 40mm / 44mm | 40mm / 44mm |
| Type | LTPO OLED Always-On Retina | Super AMOLED |
| Always-on display | ||
| Resolution | 324 x 394 / 368 x 448 | 396 x 396 / 450 x 450 |
| Processor | ||
| Chipset | Apple S6 SiP | Exynos W920 |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
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.
Explore more in smartwatches, see all Apple products or all Samsung products. View full details for the Apple Watch Series 6 or the Samsung Galaxy Watch 4.