Apple Watch SE 2 vs Series 3 – Check Which One Is Best & Why?

Apple Watch SE 2 & Apple Watch Series 3 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 Apple Watch SE 2 rather than the Apple Watch Series 3

Why Do I Recommend The Apple Watch SE 2?

  • The Apple Watch SE 2 features the S8 SiP dual-core processor for smoother performance and faster app loading, while the Apple Watch Series 3 uses the older S3 chip.
  • Apple Watch SE 2 comes with a larger Retina LTPO OLED display for clearer visuals and easier touch navigation, whereas the Apple Watch Series 3 has a smaller Retina OLED screen with thicker bezels.
  • It supports Crash Detection using advanced motion sensors to automatically alert emergency services after severe impacts, while the Apple Watch Series 3 lacks this safety functionality.
  • The Apple Watch SE 2 includes an always-on altimeter for continuous elevation tracking during hikes and workouts, whereas the Apple Watch Series 3 relies on a basic barometric altimeter.
  • Apple Watch SE 2 features dual-band Wi-Fi and Bluetooth 5.3 for stronger connectivity and faster pairing with iPhones, while the Apple Watch Series 3 uses single-band Wi-Fi and older Bluetooth 4.2 technology.
  • It has a second-generation optical heart sensor for more accurate pulse readings during workouts and rest, while the Apple Watch Series 3 uses a first-generation sensor with lower precision.
  • The Apple Watch SE 2 supports Family Setup to let children or seniors use the watch independently with cellular connectivity, whereas the Apple Watch Series 3 does not support independent setup.
  • Apple Watch SE 2 comes with 32 GB internal storage to store apps, music, and podcasts offline, while the Apple Watch Series 3 includes only 8 GB storage that limits app installation and offline playback.

Maybe the Apple Watch Series 3 can make you comfortable because it’s a little bit cheaper than the Apple Watch SE 2. 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

FeatureApple Watch SE 2Apple Watch Series 3
ChipsetS8 SiPS3 SiP
Wireless chipW3W2
Storage32 GB8 GB
Display typeRetina LTPO OLEDRetina OLED
Case sizes40 mm / 44 mm38 mm / 42 mm
Bluetooth versionBluetooth 5.3Bluetooth 4.2
AltimeterAlways-on altimeterBarometric altimeter only
CompassYesNo
Crash DetectionYesNo
Fall DetectionYesNo
Family Setup supportYesNo
High-dynamic-range gyroscopeYesNo
Case thickness (approx)10.7 mm11.4 mm
Weight (small size)~26.4 g~26.7 g
Back materialComposite nylon back with sapphire crystalComposite plastic back with glass
Band compatibilitySame as newer sizesSame band sizes but older case form
Software update supportwatchOS capable future-proofingLimited future OS support
Cellular option availabilityGPS + Cellular in more regionsGPS only in many regions / older cellular version
Color optionsSilver, Space Gray, MidnightSilver, Space Gray
PriceCheck Apple SE 2 PriceCheck Apple Series 3 Price

What Common Both Can Do?

  • Retina Display: Both watches use Apple’s Retina display technology, ensuring clear text and sharp visuals for messages, fitness stats, and watch faces. The shared display quality makes both models easy to read in various lighting conditions.
  • GPS Tracking: Each model features built-in GPS, allowing users to record distance, pace, and route data accurately during outdoor workouts without needing an iPhone. This is useful for runners, cyclists, and hikers who prefer phone-free tracking.
  • Heart Rate Monitoring: Both include an optical heart rate sensor capable of measuring real-time pulse and logging it for health trends. This feature supports heart rate notifications and activity tracking throughout the day.
  • 50m Water Resistance: The SE 2 and Series 3 are swimproof up to 50 meters, making them suitable for swimming workouts and shower use. This ensures durability in wet environments and reliability during aquatic exercise.
  • Digital Crown: Each watch uses Apple’s signature Digital Crown for navigation through menus and zooming in on apps or maps. The shared tactile control enhances usability without relying solely on touch gestures.
  • Accelerometer: Both models include an accelerometer for motion detection, which tracks steps, activity intensity, and wrist movements. It’s essential for calculating daily activity and enabling gesture-based features like wake-on-raise.
  • Gyroscope: Each watch has a gyroscope that works with the accelerometer to detect wrist rotation and movement dynamics. This improves accuracy for workout metrics and enhances fitness tracking.
  • Speaker & Microphone: Both models feature a built-in speaker and mic that support phone calls, Siri, and alerts directly from the watch. This allows quick voice interactions and communication without holding a phone.
  • Emergency SOS: The SE 2 and Series 3 both provide an Emergency SOS function that can contact local emergency services when activated. This enhances personal safety in case of accidents or distress.
  • Optical Heart Sensor: Each device employs Apple’s first-generation optical sensor design to capture continuous heart rate data. It supports workout heart rate tracking and alerts for unusually high or low readings.
  • Siri Voice Assistant: Both models integrate Siri for voice commands, reminders, and quick information access. Users can manage tasks hands-free and streamline daily productivity using voice interaction.
  • Music Playback Control: Both watches allow playback control for Apple Music and other apps directly from the wrist. This enables users to skip, pause, or change tracks during workouts or commutes easily.
  • Notifications Support: Each model displays notifications for messages, calls, and apps in real time. This keeps users informed and connected without frequently checking their phones.
  • Sleep Tracking (via watchOS): Both models support native sleep tracking starting with recent watchOS updates, helping users monitor sleep duration and patterns. This aids in improving rest habits over time.
  • Haptic Feedback: Both watches include Apple’s Taptic Engine for subtle vibration alerts. This provides discreet notifications and enhances the tactile feel of interactions without audible sounds.

Common Features

FeatureApple Watch SE 2Apple Watch Series 3
Retina DisplayYesYes
GPS TrackingYesYes
Heart Rate MonitoringYesYes
50m Water ResistanceYesYes
Digital CrownYesYes
AccelerometerYesYes
GyroscopeYesYes
Speaker & MicrophoneYesYes
Emergency SOSYesYes
Swim TrackingYesYes
Activity RingsYesYes
Bluetooth ConnectivityYesYes
Wi-Fi ConnectivityYesYes
Aluminum CaseYesYes
Optical Heart SensorYesYes
Siri Voice AssistantYesYes
Music Playback ControlYesYes
Notifications SupportYesYes
Sleep Tracking (via watchOS)YesYes
Haptic FeedbackYesYes
Price Check Apple SE 2 Price
Check Apple Series 3 Price

FAQ

Does the Apple Watch SE 2 have a bigger display than the Series 3?
Yes, the SE 2 has a larger Retina LTPO OLED display available in 40mm and 44mm sizes, compared to the smaller 38mm and 42mm Retina OLED screens on the Series 3. The SE 2 also has thinner bezels and a more modern design.

Are both watches waterproof?
Yes, both the Apple Watch SE 2 and Series 3 are water resistant up to 50 meters. They can be used for swimming in pools or open water, though neither model is suitable for diving or high-velocity water activities.

Does the Apple Watch SE 2 support Crash Detection?
Yes, the SE 2 includes Crash Detection using its improved accelerometer and gyroscope sensors. This feature can detect severe car accidents and automatically alert emergency services, which the Series 3 does not support.

Can I use Family Setup on the Apple Watch SE 2 and Series 3?
Family Setup is supported on the Apple Watch SE 2 but not on the Series 3. With Family Setup, family members who don’t have an iPhone can still use an Apple Watch with their own phone number and Apple ID.

Which model is faster in performance?
The Apple Watch SE 2 is significantly faster due to the advanced S8 SiP chip. It can run modern apps and handle watchOS 11 efficiently, while the Series 3 struggles with newer updates because of its outdated S3 processor.

Do both watches support heart rate monitoring?
Yes, both watches feature an optical heart rate sensor for measuring beats per minute. However, the SE 2 uses a second-generation sensor that provides more accurate and continuous readings during workouts and rest.

Is the Apple Watch SE 2 compatible with the latest watchOS updates?
Yes, the SE 2 supports watchOS 11 and future updates for several years, ensuring access to new features and improvements. The Series 3, however, is limited to watchOS 8 and no longer receives major updates.

Do both watches have GPS?
Yes, both models include built-in GPS for tracking outdoor workouts such as runs or bike rides without needing an iPhone. The SE 2 provides more accurate location data thanks to its improved chip and sensors.

Does either model include a compass?
Only the Apple Watch SE 2 includes a built-in compass. This helps with navigation, outdoor activities, and apps that rely on directional data, whereas the Series 3 lacks this capability.

Can I make phone calls from both models?
Yes, both watches can make and receive phone calls when paired with an iPhone. However, the SE 2 also comes in a GPS + Cellular version that allows calls and messages independently of an iPhone in supported regions.

Do both models support Siri?
Yes, both watches include Siri voice assistance. The SE 2 processes Siri commands on-device for faster response times, while the Series 3 relies on cloud-based processing and responds more slowly.

What is the battery life difference between the two models?
Both the SE 2 and Series 3 provide up to 18 hours of battery life. However, the SE 2’s more efficient S8 chip helps maintain consistent battery performance, even with advanced sensors and features enabled.

Is the Apple Watch SE 2 lighter or heavier than the Series 3?
The Apple Watch SE 2 is slightly lighter and thinner than the Series 3, offering a more comfortable fit for all-day wear. The modern case design and refined materials improve durability without increasing weight.

Which watch is a better value for new buyers?
The Apple Watch SE 2 is a far better value because it combines a powerful processor, modern design, and safety features at a midrange price. The Series 3, while more affordable, is outdated and no longer recommended for long-term use.