Design:
| screen size |
1.78" |
| Display type |
OLED/AMOLED |
| water resistance |
Waterproof |
| ATM rating |
5 ATM |
| Ingress Protection (IP) rating |
IP68 |
| waterproof depth rating |
50 m |
| Always-On Display |
✓ |
| pixel density |
326 ppi |
| resolution |
368 x 448 px |
| Watch band is replaceable |
✓ |
| has branded damage-resistant glass |
✓ |
| thickness |
10.7 mm |
| weight |
33 g |
| height |
44 mm |
| width |
38 mm |
| maximum operating temperature |
35 °C |
| lowest potential operating temperature |
0 °C |
| Has a display |
✓ |
| has a touch screen |
✓ |
| Has sapphire glass display |
✕ |
| volume |
17.8904 cm³ |
| maximum altitude |
10000 feet |
The Apple Watch SE 3 features a 1.78″ OLED display with a resolution of 368 x 448 px and a pixel density of 326 ppi, ensuring sharp and vibrant visuals. It is designed with durability in mind, offering water resistance up to 50 meters, supported by an IP68 rating and a 5 ATM waterproof depth rating. The watch also boasts an Always-On Display, Gorilla Glass for added protection, and a replaceable band for customization. At just 33g, it’s lightweight and compact, with dimensions of 44mm in height, 38mm in width, and a thickness of 10.7mm.
Sensors:
| Monitors blood oxygenation levels |
✕ |
| Has a heart rate monitor |
✓ |
| has GPS |
✓ |
| has an accelerometer |
✓ |
| Has a temperature sensor |
✓ |
| has a compass |
✓ |
| Has a barometer |
✓ |
| has a gyroscope |
✓ |
| Has a cadence sensor |
✕ |
| Monitors perspiration |
✕ |
The Apple Watch SE 3 comes equipped with a variety of sensors to support a wide range of health and fitness tracking. It features a heart rate monitor, GPS, and an accelerometer, along with a body temperature sensor, compass, barometer, and gyroscope. These sensors enable detailed tracking of activity and environmental data. However, it does not include a pulse oximeter, cadence sensor, or perspiration monitor.
Activity tracking:
| Tracks your sleep |
✓ |
| Tracks distance |
✓ |
| Tracks steps taken |
✓ |
| Measures pace |
✓ |
| Provides sleep reports |
✓ |
| Detects activities automatically |
✓ |
| Has a route tracker |
✓ |
| Tracks elevation |
✓ |
| Has multi-sport mode |
✓ |
| Has exercise tagging |
✓ |
| Has a stroke counter for swimming |
✓ |
| Tracks calorie intake |
✕ |
| Designed for diving |
✕ |
| Designed for golf |
✕ |
The Apple Watch SE 3 offers a comprehensive set of activity tracking features to monitor various aspects of your fitness journey. It includes sleep tracking, distance tracking, and steps tracking, along with features like activity detection, route tracking, and elevation tracking. The watch also supports multi-sport mode, exercise tagging, and even has a stroke counter for swimming. However, it does not track calorie intake, diving, or golf-specific activities.
Connectivity:
| has a cellular module |
✓ |
| Is compatible with iOS |
✓ |
| Is compatible with Android |
✕ |
| Bluetooth version |
5.3 |
| supports Wi-Fi |
✓ |
| Wi-Fi version |
Wi-Fi 4 (802.11n) |
| supports ANT+ |
✕ |
| SIM cards |
1 eSIM |
| has NFC |
✓ |
| supports Galileo |
✓ |
The Apple Watch SE 3 offers a range of connectivity options, including a cellular module with support for a single eSIM and NFC functionality. It is compatible with iOS devices but not with Android. The watch supports Bluetooth 5.3, Wi-Fi 4 (802.11n), and Galileo positioning, while it does not support ANT+ connectivity. The device allows for wireless communication and provides a versatile connection experience across various networks and services.
Battery:
| battery life |
0.75 days |
| battery life in power save mode |
32 hours |
| has wireless charging |
✓ |
| has a rechargeable battery |
✓ |
| Has a solar power battery |
✕ |
| has a removable battery |
✕ |
The Apple Watch SE 3 is powered by a rechargeable battery with a battery life of up to 0.75 days on a full charge. In power save mode, the battery lasts up to 32 hours. The watch supports wireless charging, providing convenient charging without the need for cables. However, it does not feature a solar power battery or a removable battery.
Features:
| release date |
September 2025 |
| measures VO2 max |
✕ |
| measures resting heart rate |
✓ |
| has fast/slow heart rate notifications |
✓ |
| shows readiness level |
✕ |
| Can be used to answer calls |
✓ |
| Locates your phone |
✓ |
| Has call control |
✓ |
| Has notifications |
✓ |
| has irregular heart rate warnings |
✓ |
| Has silent alarm |
✓ |
| Has vibrating alerts |
✓ |
| has fall detection |
✓ |
| Has a stopwatch |
✓ |
| Has smart alarm |
✓ |
| has voice commands |
✓ |
| internal storage |
64GB |
| Has a built-in camera remote control function |
✓ |
| Acquires GPS faster |
✕ |
| number of microphones |
1 |
| has a front camera |
✕ |
The Apple Watch SE 3 comes with a variety of useful features designed to enhance daily convenience and health tracking. It includes resting heart rate monitoring, fast/slow heart rate notifications, and irregular heart rate warnings. The watch supports voice commands, provides wrist notifications, and offers fall detection for safety. Additional features include a silent alarm, vibrating alerts, a stopwatch, and a remote shutter for controlling your camera.
App & Software:
| Provides activity reports |
✓ |
| Has inactivity alerts |
✓ |
| Counts how many calories you've burned |
✓ |
| Has goal setting |
✓ |
| Has achievements |
✓ |
| Free app |
✓ |
| Has exercise diary |
✓ |
| Ad-free |
✓ |
| Has coaching |
✕ |
| Has temperature tracking |
✓ |
| Has period notifications |
✓ |
| Has voice feedback |
✓ |
| Has music playback |
✓ |
| Exports to email |
✕ |
| Predicts ovulation |
✓ |
| Predicts start date |
✓ |
| Can be personalised |
✓ |
| Has barcode scanner on app |
✕ |
| Tracks water intake |
✕ |
| Has weight tracking |
✕ |
The Apple Watch SE 3 offers a comprehensive suite of app and software features to support health and fitness tracking. It provides activity reports, inactivity alerts, and tracks calories burned, with options for goal setting and achievement tracking. The app is free, ad-free, and includes an exercise diary, voice feedback, and music playback for workouts. It also features period notifications, temperature tracking, and the ability to predict ovulation and start dates, while offering personalization options for the user experience.
Miscellaneous:
| has a battery level indicator |
✓ |
| has crash detection |
✓ |
| has aptX |
✕ |
| Has auto pause |
✓ |
| Has passcode |
✓ |
| Compatible with smart scales |
✓ |
| Compatible with external heart rate monitors |
✓ |
| Is compatible with Windows |
✕ |
| has an external memory slot |
✕ |
| Is compatible with Mac OS X |
✓ |
| has a socket for a 3.5 mm audio jack |
✕ |
The Apple Watch SE 3 includes several convenient features designed to enhance user experience and compatibility. It has a battery level indicator, crash detection, and auto pause functionality for workouts. It also supports passcode protection, works with compatible smart scales and external heart rate monitors, and is compatible with Mac OS X. However, it does not support aptX audio, external memory slots, or a 3.5mm headset jack.