In depth comparison and review of Garmin Forerunner 745 and Garmin Forerunner 55. 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 745 | Garmin Forerunner 55 |
|---|
| Product Type | Sport watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS, Android |
| Wearing Style | Watch style | Watch style |
| Width | 43.8 mm | 42 mm |
| Height | 43.8 mm | 42 mm |
| Depth | 13.3 mm | 11.6 mm |
| Weight | 47 g | 37 g |
| Body Material | Fibre-reinforced polymer | - |
| Protection | Water-resistant | Waterproof |
| Colours | - | Monterra grey |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Sensors | Accelerometer, digital compass, thermometre, gyro sensor, heart rate, barometric altimeter, Pulse Ox sensor | Accelerometer, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, time, calories burned, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, menstrual cycle, temperature, hydration, recovery time, training load | Distance, time, speed, calories burned, sleep activity, heart rate, stress level |
| Goal Setting | Yes | Yes |
| Features | Find phone function, VO2 max, HR zones, VIRB control, Move IQ, Garmin Connect compatible, Find my Device, store & play music, rejecting a call, Garmin Elevate, LiveTrack, TrueUp, Body Battery, auto lap, Physio TrueUp, music playback control, weather information | Music remote handling, idle alert, Garmin Connect compatible, Body Battery |
| Notifications | Calendar, SMS, Email, social apps, incoming calls | Calendar, Email, social apps |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | - |
| Navigation (GPS) | GPS/GLONASS/Galileo receiver | GPS receiver |
| Payment Technology | Garmin Pay | - |
| CONNECTIVITY | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Wireless Interface | Bluetooth, Wi-Fi, NFC, ANT+ | Bluetooth, ANT+ |
|---|
| DISPLAY | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | Memory-in-Pixel LCD - colour - transflective |
|---|---|---|
| Resolution | 240 x 240 pixels | 208 x 208 pixels |
| Screen Size | 1.2" | 1.04" |
| Screen Protection | Corning Gorilla Glass DX (scratch resistant glass) | Chemically strengthened glass |
| INPUT DEVICE | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Type | Touch sensitive screen | Touch buttons |
|---|
| CASE | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Bezel | Fibre-reinforced polymer | - |
| Case Details | Black | Neo tropic | Black | White | Aqua green |
| BAND | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | 126-216 mm | - |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | Black | Black | White | Aqua green |
| BATTERY | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Technology | Lithium Ion | - |
|---|---|---|
| Battery Life | 7 day(s) | 14 day(s) |
| Battery Life Details | Smartwatch mode - up to 7 days GPS mode - up to 16 hour(s) GPS with Music mode - up to 6 hour(s) UltraTrac mode - up to 21 hour(s) |
GPS mode - up to 20 hour(s) Smartwatch mode - up to 14 days |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 745 | Garmin Forerunner 55 |
|---|
| Included Accessories | USB cable | Charging/data cable |
|---|---|---|
| Preloaded Software | Garmin Pay, Garmion Connect IQ | - |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | 60 °C | - |
| Min Operating Temperature | -20 °C | - |
| Warranty | 1-year warranty | 1-year warranty |
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