Detailed comparison and review of Garmin Forerunner 45S and Garmin Forerunner 55. 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 45S | Garmin Forerunner 55 |
|---|
| Product Type | Sport watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS, Android |
| Wearing Style | Watch style | Watch style |
| Width | 39.5 mm | 42 mm |
| Height | 39.5 mm | 42 mm |
| Depth | 11.4 mm | 11.6 mm |
| Weight | 32 g | 37 g |
| Protection | Waterproof | Waterproof |
| Colours | - | Monterra grey |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, time, speed, calories burned, sleep activity, heart rate, stress level |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Music remote handling, idle alert, Garmin Connect compatible, Body Battery |
| Notifications | Calendar, Email, social apps | Calendar, Email, social apps |
| Vibrating Alert | Yes | Yes |
| Navigation (GPS) | - | GPS receiver |
| CONNECTIVITY | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Wireless Interface | Bluetooth, ANT+ | Bluetooth, ANT+ |
|---|
| DISPLAY | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | Memory-in-Pixel LCD - colour - transflective |
|---|---|---|
| Resolution | 208 x 208 pixels | 208 x 208 pixels |
| Screen Size | 1.04" | 1.04" |
| Screen Protection | - | Chemically strengthened glass |
| INPUT DEVICE | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Type | - | Touch buttons |
|---|
| CASE | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Case Details | White | Iris | Black | Black | White | Aqua green |
| BAND | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S | - |
| Fits Wrist with Circumference | 124-185 mm | - |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | White | Iris | Black | Black | White | Aqua green |
| BATTERY | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Battery Life | - | 14 day(s) |
|---|---|---|
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
GPS mode - up to 20 hour(s) Smartwatch mode - up to 14 days |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45S | Garmin Forerunner 55 |
|---|
| Included Accessories | Charging/data cable | Charging/data cable |
|---|---|---|
| Max Depth of Water Resistance | 50 m | 50 m |
| Warranty | - | 1-year warranty |
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