Side by side comparison and review of Garmin Forerunner 45 and Fitbit Sense. 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 45 | Fitbit Sense |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | Android 7.0 (Nougat) or later, iOS 12.2 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 42 mm | 40.38 mm |
| Height | 42 mm | 40.38 mm |
| Depth | 11.4 mm | 12.45 mm |
| Weight | 36 g | - |
| Body Material | - | Stainless steel, aluminium |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Sensors | Accelerometer, heart rate | Ambient light sensor, altimeter, gyro sensor, 3-axis accelerometer, temperature, optical heart sensor, electrodermal activity (EDA) sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, calories burned, activity, sleep activity, heart rate, steps taken, skin temperature, sleep stages, stress level, menstrual cycle, ECG |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Music remote handling, HR zones, breathing training function |
| Notifications | Calendar, Email, social apps | Missed calls, calendar, SMS, social apps |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Google Assistant, Alexa |
| CONNECTIVITY | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Wireless Interface | Bluetooth, ANT+ | IEEE 802.11b/g/n, NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | AMOLED - colour |
|---|---|---|
| Resolution | 208 x 208 pixels | - |
| Screen Size | 1.04" | - |
| Screen Protection | - | Corning Gorilla Glass 3 (scratch resistant glass) |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Type | - | Touch sensitive screen |
|---|
| CASE | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Case Shape | Round | Square |
|---|---|---|
| Case Details | Black | Silver stainless steel | Graphite stainless steel | Soft gold stainless steel |
| BAND | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | L | S/L |
| Fits Wrist with Circumference | 129-197 mm | 140-220 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | Black | Lava red | Sage grey | Carbon | Lunar white |
| BATTERY | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Battery Life | - | 6 day(s) |
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
Typical usage - up to 6 days GPS mode - up to 12 hour(s) |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45 | Fitbit Sense |
|---|
| Included Accessories | Charging/data cable | Charging cable, 2 wristbands (S+L) |
|---|---|---|
| Preloaded Software | - | FitBit Pay |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
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