Side by side comparison and review of Garmin Forerunner 45S and Amazfit GTS 2. Compare design, displays, functions, batteries and other key specifications and features to simplify the choice of your perfect smartwatch. Our goal is to make it easier for you to decide on the watch that will best meet your expectations by revealing the main differences between the products.
| GENERAL | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS 10 or later, Android 5.0 (Lollipop) 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: 24.7 g |
| Body Material | - | Plastic, aluminium alloy |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, ambient light sensor, barometer, gyro sensor, geomagnetic sensor, BioTracker 2 PPG biological tracking optical 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, personal activity intelligence (PAI), REM phases |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Making a call, inactivity alert, alarm, store & play music, huami-PAI Health Assessment System, weather information, event reminders |
| Notifications | Calendar, Email, social apps | SMS, Email, social apps, incoming calls |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS receiver |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa |
| CONNECTIVITY | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Wireless Interface | Bluetooth, ANT+ | Wi-Fi, Bluetooth 5.0 |
|---|
| DISPLAY | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | AMOLED - colour |
|---|---|---|
| Resolution | 208 x 208 pixels | 348 x 442 pixels |
| Screen Size | 1.04" | 1.65" |
| Pixel Density | - | 341 ppi |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Type | - | Touch sensitive screen |
|---|
| CASE | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Case Shape | Round | Square |
|---|---|---|
| Case Back | - | Polymer |
| Case Details | White | Iris | Black | Midnight black | Urban grey | Desert gold |
| BAND | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | S | - |
| Band Width | - | 20 mm |
| Fits Wrist with Circumference | 124-185 mm | - |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | White | Iris | Black | - |
| STORAGE | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| User Memory | - | 3 GB |
|---|
| BATTERY | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Capacity | - | 246 mAh |
|---|---|---|
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
Daily mode - up to 7 days Basic mode - up to 20 days GPS mode - up to 25 hour(s) |
| Rechargeable Battery | - | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Garmin Forerunner 45S | Amazfit GTS 2 |
|---|
| Included Accessories | Charging/data cable | Magnetic charging stand |
|---|---|---|
| Preloaded Software | - | Amazon Alexa |
| Max Depth of Water Resistance | 50 m | 50 m |
| Manufacturer Model Number | - | A1969 |
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