In depth comparison and review of Garmin Legacy Hero Series First Avenger and Amazfit GTR 3. 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 Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Product Type | Sport 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 | 45.1 mm | - |
| Height | 45.1 mm | - |
| Depth | 12.8 mm | - |
| Weight | 50.5 g | - |
| Body Details | - | Case only: 32 g |
| Body Material | Stainless steel, fibre-reinforced polymer | Aluminium alloy |
| Protection | Water-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Sensors | Accelerometer, thermometre, altimeter, gyro sensor, electromagnetic compass, optical heart sensor, Pulse Ox sensor | Accelerometer, ambient light sensor, gyro sensor, geomagnetic sensor, barometric altimeter, temperature, BioTracker PPG 3.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, time, calories burned, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, menstrual cycle, breathing rate, hydration | 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, idle alert, HR zones, Move IQ, Garmin Connect compatible, Find my Device, store & play music, rejecting a call, Garmin Elevate, TrueUp, Body Battery, animated workouts | Camera remote control, find phone function, automatic exercise recognition, weather information, PAI Health Assessment System |
| Notifications | SMS, incoming calls | Calendar |
| Vibrating Alert | - | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo receiver | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Payment Technology | Garmin Pay | - |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Wireless Interface | Bluetooth, Wi-Fi, NFC, ANT+ | Bluetooth 5.1 |
|---|
| DISPLAY | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Type | Memory-in-Pixel LCD - colour | AMOLED - colour |
|---|---|---|
| Resolution | 260 x 260 pixels | 454 x 454 pixels |
| Screen Size | 1.3" | 1.39" |
| Aspect Ratio | - | Full circle |
| Pixel Density | - | 326 ppi |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Tempered glass |
| INPUT DEVICE | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Type | Touch sensitive screen, touch buttons | Touch sensitive screen, push button |
|---|
| CASE | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Case Size | 45 mm | - |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | Brushed stainless steel | - |
| Case Back | Polymer | - |
| Case Details | Silver / midnight blue | - |
| Crown Type | - | Classic crown |
| BAND | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | 22 mm |
| Fits Wrist with Circumference | 135-200 mm | 155-218 mm |
| Changeable | - | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Tactical leather | Silicone |
| Band Colour | Brown | Moonlight grey | Thunder black |
| BATTERY | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Capacity | - | 450 mAh |
| Battery Life | 8 day(s) | - |
| Battery Life Details | Smartwatch mode - up to 8 days GPS mode - up to 18 hour(s) Smartwatch with music mode - up to 7.5 hour(s) GPS with Music mode - up to 6 hour(s) |
Battery safe mode - up to 35 days Heavy usage - up to 10 days Typical usage - up to 21 days GPS mode - up to 35 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Garmin Legacy Hero Series First Avenger | Amazfit GTR 3 |
|---|
| Included Accessories | Charging/data cable | Magnetic charging stand |
|---|---|---|
| Preloaded Software | Garmin Pay, Garmion Connect IQ | Zepp App |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | 60 °C | - |
| Min Operating Temperature | -20 °C | - |
| Warranty | - | 1-year warranty |
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