Apple Watch Series 9 vs Samsung Galaxy Watch 4 Classic
The Verdict
Apple Watch Series 9 excels with its superior Always-On Retina LTPO OLED display featuring 484x396 resolution and seamless watchOS 10 integration, plus skin temperature monitoring. Samsung Galaxy Watch 4 Classic counters with exceptional battery longevity (up to 40 hours vs 18 hours), a classic rotating bezel design, and sturdier build quality with Gorilla Glass DX and MIL-STD certification. Battery life represents the most significant differentiator,Galaxy Watch 4 Classic stretches to over a week of typical use while Series 9 demands daily charging. Health tracking favors Apple with skin temperature sensing. Display quality slightly favors Apple's OLED technology. At $50 cheaper, Galaxy Watch 4 Classic delivers better value for battery-conscious users prioritizing durability. Series 9 suits iPhone ecosystems and those valuing premium display and fitness metrics. Choose Galaxy Watch 4 Classic for longevity and value; Series 9 for premium Apple integration.
Who Should Buy
Buy the Apple Watch Series 9 if…
- →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
Buy the Samsung Galaxy Watch 4 Classic if…
- →Physical rotating bezel is the best smartwatch navigation method
- →Stainless steel construction feels premium and durable
- →Full Wear OS 3 with Google apps and Samsung health suite
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 4 Classic
Pros
- Physical rotating bezel is the best smartwatch navigation method
- Stainless steel construction feels premium and durable
- Full Wear OS 3 with Google apps and Samsung health suite
- Body composition analysis via BIA sensor is a unique feature
- Classic watch aesthetics suit formal and casual settings
Cons
- Heavier than the standard Watch 4 — 46-52 g is noticeable
- Battery life around 22 hours still needs nightly charging
- ECG and blood pressure require a Samsung Galaxy phone
- Wear OS 3 had significant growing pains at launch
Full Specifications
| Spec | Apple Watch Series 9 | Samsung Galaxy Watch 4 Classic |
|---|---|---|
| Software | watchOS 10 | Wear OS 3.0 (One UI Watch 4) |
| Body | ||
| Weight | 38.7 g (aluminum) | 46.2 g (42mm) / 52 g (46mm) |
| Case material | Aluminum or stainless steel | Stainless Steel with Corning Gorilla Glass DX |
| Water resistance | WR50 / EN13319 | 5ATM + IP68, MIL-STD-810G |
| 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 40 hrs (typical ~22 hrs) |
| Display | ||
| Size | 45 mm | 42mm / 46mm |
| Type | Always-On Retina LTPO OLED | Super AMOLED |
| Always-on display | ||
| Resolution | 484 x 396 | 396 x 396 / 450 x 450 |
| Processor | ||
| RAM | 1 GB | — |
| Chipset | Apple S9 SiP | Exynos W920 |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.3 | 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 9 or the Samsung Galaxy Watch 4 Classic.