In depth comparison and review of Garmin Forerunner 45S and Apple Watch SE (GPS) 2nd generation. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Operating System | - | WatchOS |
| Supported Host Device OS | iOS, Android | iOS 16 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 39.5 mm | - |
| Height | 39.5 mm | - |
| Depth | 11.4 mm | - |
| Weight | 32 g | - |
| Body Details | - | Case only: 26.4 g |
| Body Material | - | Aluminium |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, ambient light sensor, digital compass, barometer, gyroscope, always-on altimeter, optical heart sensor (2d gen) |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, time, calories burned, activity, sleep activity, heart rate, sleep stages, menstrual cycle |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Call handling, music remote handling, camera remote control, Fall detection, Emergency SOS, Family Setup support, International Emergency Calling, Crash Detection, noise monitoring, Compass Waypoint, brightness: 1000 nits |
| Notifications | Calendar, Email, social apps | Calendar, SMS, Email, high and low heart rate, irregular rhythm, cardio fitness |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/QZSS receiver |
| Payment Technology | - | Apple Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Siri |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Wireless Interface | Bluetooth, ANT+ | IEEE 802.11b/g/n, Bluetooth 5.0 |
|---|
| DISPLAY | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | Retina LTPO OLED - colour |
|---|---|---|
| Resolution | 208 x 208 pixels | 324 x 394 pixels |
| Screen Size | 1.04" | - |
| Screen Protection | - | Ion-X glass |
| INPUT DEVICE | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Type | - | Touch sensitive screen |
|---|
| CASE | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Case Size | - | 40 mm |
|---|---|---|
| Case Shape | Round | Rectangular |
| Case Back | - | Sapphire crystal and ceramic back |
| Case Details | White | Iris | Black | Midnight aluminium | Silver aluminium | Starlight aluminium |
| Crown Type | - | Digital with haptic feedback |
| BAND | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Band Type | Band | Sport band |
|---|---|---|
| Band Size | S | Regular |
| Fits Wrist with Circumference | 124-185 mm | 130-200 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Pin-and-tuck |
| Band Material | Silicone | Fluoroelastomer |
| Band Colour | White | Iris | Black | Midnight | Starlight |
| STORAGE | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Storage Capacity | - | 32 GB |
|---|
| CPU | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Manufacturer | - | Apple |
|---|---|---|
| CPU Type | - | S8 SiP |
| Features | - | W3 Apple wireless chip |
| BATTERY | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Technology | - | Lithium Ion |
|---|---|---|
| Battery Life | - | 18 hours |
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
- |
| Rechargeable Battery | - | Yes |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45S | Apple Watch SE (GPS) 2nd generation |
|---|
| Included Accessories | Charging/data cable | Magnetic charger to USB-C cable (1 m) |
|---|---|---|
| Preloaded Software | - | Apple Pay, GymKit |
| SAR Value | - | 0.24 W/kg (head), 0.07 W/kg (limb) |
| Max Depth of Water Resistance | 50 m | 50 m |
| Manufacturer Model Number | - | A2722 |
| Warranty | - | 1-year warranty |
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