Detailed comparison and review of Garmin Forerunner 45 and Amazfit GTR 3 Pro. With our comprehensive overview, you can simply compare size, design, functions, battery capacities, but also other key features of both smartwatches and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the watch that best fits your needs and expectations.
| GENERAL | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | - | Zepp OS |
| Supported Host Device OS | iOS, Android | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Width | 42 mm | - |
| Height | 42 mm | - |
| Depth | 11.4 mm | - |
| Weight | 36 g | - |
| Body Details | - | Case only: 32 g |
| Body Material | - | Aluminium alloy |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, ambient light sensor, gyro sensor, geomagnetic sensor, barometric altimeter, temperature, BioTracker PPG 3.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, calories burned, sleep activity, heart rate, steps taken, blood oxygen saturation, stress level |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Camera remote control, find phone function, automatic exercise recognition, music playback control, weather information, PAI Health Assessment System |
| Notifications | Calendar, Email, social apps | Calendar |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Wireless Interface | Bluetooth, ANT+ | Wi-Fi, Bluetooth 5.0 |
|---|
| DISPLAY | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | AMOLED - colour |
|---|---|---|
| Resolution | 208 x 208 pixels | 480 x 480 pixels |
| Screen Size | 1.04" | 1.45" |
| Aspect Ratio | - | Full circle |
| Pixel Density | - | 331 ppi |
| Screen Protection | - | Tempered glass |
| INPUT DEVICE | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Type | - | Touch sensitive screen, push button |
|---|
| CASE | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Case Details | Black | - |
| Crown Type | - | Classic crown |
| BAND | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | L | - |
| Band Width | - | 22 mm |
| Fits Wrist with Circumference | 129-197 mm | 155-218 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Leather |
| Band Colour | Black | Lava red | Brown | Infinite black |
| BATTERY | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Capacity | - | 450 mAh |
|---|---|---|
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
Battery safe mode - up to 30 days Heavy usage - up to 6 days Typical usage - up to 12 days GPS mode - up to 35 hour(s) |
| Rechargeable Battery | - | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Garmin Forerunner 45 | Amazfit GTR 3 Pro |
|---|
| Included Accessories | Charging/data cable | Magnetic charging stand |
|---|---|---|
| Preloaded Software | - | Zepp App |
| Max Depth of Water Resistance | 50 m | 50 m |
| Warranty | - | 2-year warranty |
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