Detailed comparison and review of Polar Unite and Fitbit Versa 4. 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 | Polar Unite | 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 | 43.4 mm | 40.5 mm |
| Height | 43.4 mm | 40.5 mm |
| Depth | 10.4 mm | 11.2 mm |
| Weight | 32 g | - |
| Body Material | Fibreglass reinforced polymer | - |
| Protection | Water-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Polar Unite | Fitbit Versa 4 |
|---|
| Sensors | Accelerometer, ambient light sensor, optical heart sensor | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, optical heart sensor, vibration motor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken | 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 | Fitness test, Bluetooth Smart technology, inactivity alert, GPS via mobile, guided breathing session, Nightly Recharge recovery measurement, FitSpark training guide | 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, SMS, Email | 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 | Polar Unite | Fitbit Versa 4 |
|---|
| Wireless Interface | Bluetooth | NFC, Bluetooth 5.0 |
|---|---|---|
| Connectors | USB | - |
| DISPLAY | Polar Unite | Fitbit Versa 4 |
|---|
| Type | IPS - colour | Colour |
|---|---|---|
| Resolution | 240 x 204 pixels | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Polar Unite | Fitbit Versa 4 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Polar Unite | Fitbit Versa 4 |
|---|
| Case Size | - | 40 mm |
|---|---|---|
| Case Shape | Round | Square |
| Case Details | - | Copper rose | Graphite | Platinum |
| BAND | Polar Unite | Fitbit Versa 4 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S/L | S/L |
| Band Width | 20 mm | - |
| Fits Wrist with Circumference | 130-210 mm | Up to 209 mm |
| Changeable | Yes | Yes |
| Clasp Type | Snap & slip | Pin-and-tuck |
| Band Material | Silicone | - |
| Band Colour | Black | Blue | Pink | White | Pink sand | Black | Waterfall blue |
| BATTERY | Polar Unite | Fitbit Versa 4 |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 174 mAh | - |
| Battery Life | - | 6 day(s) |
| Battery Life Details | Watch mode + HR - up to 4 days Training mode + HR - up to 50 hour(s) |
Typical usage - up to 6 days GPS mode - up to 12 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Polar Unite | 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 | Polar Fitness Test, Polar Flow | Google Maps, FitBit Pay, Google Wallet |
| Max Depth of Water Resistance | 30 m | 50 m |
| Max Operating Temperature | 50 °C | 45 °C |
| Min Operating Temperature | -10 °C | -10 °C |
| Warranty | 2-year warranty | 2-year warranty |
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