Samsung Gear S3 & Samsung Galaxy Watch Active2 share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Samsung Gear S3 rather than the Samsung Galaxy Watch Active2.

Why Do I Recommend The Samsung Gear S3?
- The Samsung Gear S3 has a physical rotating bezel for precise one-handed navigation in wet or gloved conditions, while the Samsung Galaxy Watch Active2 uses a digital touch bezel.
- The Samsung Gear S3 supports MST-based Samsung Pay for wider compatibility with older magnetic stripe payment terminals, whereas the Samsung Galaxy Watch Active2 supports only NFC payments.
- It includes a larger 380 mAh battery to support longer real-world usage between charges during mixed daily use, while the Samsung Galaxy Watch Active2 has a smaller 247 mAh battery.
- The Samsung Gear S3 comes with MIL-STD-810G durability certification for better resistance to shock, vibration, and extreme environmental conditions, whereas the Samsung Galaxy Watch Active2 lacks the same military-grade rating.
- Samsung Gear S3 features a thicker stainless-steel case for improved impact protection and a more rugged feel during outdoor activities, while the Samsung Galaxy Watch Active2 uses a thinner and lighter chassis.
- It has a louder integrated speaker to improve call clarity in noisy environments, while the Samsung Galaxy Watch Active2 comes with a smaller speaker tuned more for compact design.
- The Samsung Gear S3 includes a larger single-size 46 mm case for easier on-screen readability and larger touch targets, whereas the Samsung Galaxy Watch Active2 offers smaller size variants that reduce display area.
- Samsung Gear S3 supports a traditional watch-style control layout to reduce accidental inputs during workouts or movement, while the Samsung Galaxy Watch Active2 relies on touch-based controls that are more sensitive to unintended contact.
Maybe the Samsung Galaxy Watch Active2 can make you comfortable because it’s a little bit cheaper than the Samsung Gear S3. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.
Side-by-Side Comparison
| Feature | Samsung Gear S3 | Samsung Galaxy Watch Active2 |
| Case sizes | 46 mm | 40 mm |
| Case thickness | Thicker | Thinner |
| Bezel control | Physical rotating bezel | Digital touch bezel |
| Glass | Gorilla Glass SR+ | Gorilla Glass DX+ |
| Case materials | Stainless steel | Aluminum or stainless steel |
| MST (Samsung Pay) | Yes | No |
| Battery capacity | 380 mAh | 247 mAh |
| MIL standard | MIL-STD-810G | Not specified |
| Rotating input | Bezel | Touch ring + swipe |
| Default strap width | 22 mm | 20 mm |
| Price | Check Samsung Gear S3 Price | Check Galaxy Watch Active2 Price |
What Common Both Can Do?
- Circular AMOLED display: Both smartwatches use circular AMOLED screens that provide vibrant colors and deep contrast. This display type ensures good readability both indoors and outdoors.
- Touchscreen input: Each model supports full touchscreen interaction for navigation and app control. This allows users to swipe, tap, and interact directly with on-screen elements.
- Always-On Display support: Both devices support an always-on display mode that keeps the watch face visible at all times. This makes checking the time and basic information quick and convenient.
- Tizen operating system: Samsung Gear S3 and Galaxy Watch Active2 both run on Samsung’s Tizen OS. This ensures a familiar interface and consistent user experience across both watches.
- Samsung Health integration: Both watches integrate tightly with Samsung Health for activity tracking and health data management. This allows users to monitor workouts, daily activity, and wellness metrics in one place.
- Built-in GPS: Each smartwatch includes built-in GPS for tracking outdoor activities. This enables accurate distance and route tracking without needing a connected phone.
- Optical heart rate sensor: Both models feature optical heart rate sensors for continuous heart rate monitoring. This helps users track cardiovascular activity during workouts and daily routines.
- Accelerometer: An accelerometer is included in both devices to detect movement and activity patterns. This sensor plays a key role in step counting and activity recognition.
- Gyroscope: Both watches use a gyroscope to detect rotational movement. This improves motion accuracy during fitness tracking and gesture-based interactions.
- Barometer: A built-in barometer is present on both models to measure altitude changes. This is useful for tracking elevation during hiking or stair climbing.
- Ambient light sensor: Each device includes an ambient light sensor to adjust screen brightness automatically. This improves visibility while also helping conserve battery life.
- NFC support: Both smartwatches support NFC for contactless payments and wireless transactions. This enables features like Samsung Pay directly from the wrist.
- Samsung Pay compatibility: Samsung Gear S3 and Galaxy Watch Active2 both work with Samsung Pay. Users can make payments without needing their phone or wallet.
- Bluetooth connectivity: Bluetooth is available on both models for pairing with smartphones and wireless accessories. This ensures stable connections for notifications and data syncing.
- Wi-Fi connectivity: Each watch supports Wi-Fi for data syncing and app updates. This allows certain functions to work independently of a phone connection.
- Speaker: Both devices include built-in speakers for calls and audio feedback. This enables hands-free calling and audible alerts.
- Microphone: A microphone is present on both smartwatches for voice input and calls. This supports voice commands and call functionality.
- Music playback support: Both models allow music playback directly from the watch or via connected devices. This is useful for workouts without carrying a phone.
- Call handling from watch: Each smartwatch supports making and receiving calls when connected to a phone or LTE network. This adds convenience for quick communication.
- Water resistance: Both watches are designed to handle water exposure. This makes them suitable for everyday use and fitness activities involving sweat or splashes.
- Interchangeable straps: Samsung Gear S3 and Galaxy Watch Active2 both support interchangeable straps. This allows users to customize comfort and style.
- Third-party watch faces: Both models support downloadable watch faces from Samsung’s ecosystem. This lets users personalize the appearance of their smartwatch.
- Smartphone notifications: Each device mirrors notifications from a connected smartphone. This keeps users informed without needing to check their phone.
- Alarm and timer functions: Both watches include standard alarm and timer tools. These features help with daily scheduling and time management.
Common Features
| Feature | Samsung Gear S3 | Samsung Galaxy Watch Active2 |
| Circular AMOLED display | Yes | Yes |
| Touchscreen input | Yes | Yes |
| Always-On Display support | Yes | Yes |
| Tizen operating system | Yes | Yes |
| Samsung Health integration | Yes | Yes |
| Built-in GPS | Yes | Yes |
| Optical heart rate sensor | Yes | Yes |
| Accelerometer | Yes | Yes |
| Gyroscope | Yes | Yes |
| Barometer | Yes | Yes |
| Ambient light sensor | Yes | Yes |
| NFC support | Yes | Yes |
| Samsung Pay compatibility | Yes | Yes |
| Bluetooth connectivity | Yes | Yes |
| Wi-Fi connectivity | Yes | Yes |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Music playback support | Yes | Yes |
| Call handling from watch | Yes | Yes |
| Water resistance | Yes | Yes |
| Interchangeable straps | Yes | Yes |
| Third-party watch faces | Yes | Yes |
| Price | Check Samsung Gear S3 Price | Check Galaxy Watch Active2 Price |