Side by side comparison and review of Garmin Forerunner 45S and Fitbit Versa 4. 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 | Fitbit Versa 4 |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | Android 10 or later, iOS 13.4 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 39.5 mm | 40.5 mm |
| Height | 39.5 mm | 40.5 mm |
| Depth | 11.4 mm | 11.2 mm |
| Weight | 32 g | - |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| Sensors | Accelerometer, heart rate | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, optical heart sensor, vibration motor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, calories burned, activity, sleep activity, heart rate, steps taken, pace, stress level, menstrual cycle, Resting Heart Rate (RHR), breathing rate, sleep quality score |
| Modes | - | 40+ sports modes |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Find phone function, VO2 max, Heart Rate Variability (HRV) monitoring, HR zones, automatic exercise recognition, smart Wake-Up, Active Zone Minutes, guided breathing session, Always-on display, Sleep Score, Sleep Profile, Stress Management Score, Daily Readiness Score |
| Notifications | Calendar, Email, social apps | SMS, incoming calls, applications, high and low heart rate |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| CONNECTIVITY | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| Wireless Interface | Bluetooth, ANT+ | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | Colour |
|---|---|---|
| Resolution | 208 x 208 pixels | - |
| Screen Size | 1.04" | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| Type | - | Touch sensitive screen |
|---|
| CASE | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| Case Size | - | 40 mm |
|---|---|---|
| Case Shape | Round | Square |
| Case Details | White | Iris | Black | Copper rose | Graphite | Platinum |
| BAND | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S | S/L |
| Fits Wrist with Circumference | 124-185 mm | Up to 209 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Pin-and-tuck |
| Band Material | Silicone | - |
| Band Colour | White | Iris | Black | Pink sand | Black | Waterfall blue |
| BATTERY | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| 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 |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Garmin Forerunner 45S | Fitbit Versa 4 |
|---|
| Included Accessories | Charging/data cable | Charging cable, 6-month Fitbit Premium membership, wristband (129 - 175 mm), wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | - | Google Maps, FitBit Pay, Google Wallet |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Warranty | - | 2-year warranty |
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