In depth comparison and review of Polar Grit X and Fitbit Versa 4. 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 | Polar Grit X | Fitbit Versa 4 |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | Android 10 or later, iOS 13.4 or later |
| Activity/Sport | Multisport | - |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | - | 40.5 mm |
| Height | - | 40.5 mm |
| Depth | - | 11.2 mm |
| Body Details | With band: 64 g Case only: 44 g |
- |
| Body Material | Stainless steel | - |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Polar Grit X | Fitbit Versa 4 |
|---|
| Sensors | Digital compass, barometer, altimeter, heart rate | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, optical heart sensor, vibration motor |
|---|---|---|
| Tracking Data | Distance, speed, calories burned, activity, heart rate, steps taken, pace, sleep stages, cadence, running power, swimming metrics, running index | 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, VO2 max, inactivity alert, alarm, Serene (breathing exercise), weather information, Nightly Recharge recovery measurement, FitSpark training guide, FuelWise smart fueling assistant, Hill Splitter, Route guidance, Route planning with Komoot, Energy sources | 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 | SMS, Email, incoming calls | SMS, incoming calls, applications, high and low heart rate |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/QZSS receiver | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| CONNECTIVITY | Polar Grit X | Fitbit Versa 4 |
|---|
| Wireless Interface | Bluetooth | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Polar Grit X | Fitbit Versa 4 |
|---|
| Type | Colour | Colour |
|---|---|---|
| Resolution | 240 x 240 pixels | - |
| Screen Size | 1.2" | - |
| Screen Protection | Corning Gorilla Glass (scratch resistant glass) | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Polar Grit X | Fitbit Versa 4 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Polar Grit X | Fitbit Versa 4 |
|---|
| Case Size | - | 40 mm |
|---|---|---|
| Crystal Type | Laminated Corning Gorilla Glass | - |
| Case Shape | Round | Square |
| Bezel | Stainless steel | - |
| Case Details | White/silver | Black DLC | Silver | Copper rose | Graphite | Platinum |
| BAND | Polar Grit X | Fitbit Versa 4 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S | S/L |
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | 130-190 mm | Up to 209 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Pin-and-tuck |
| Band Material | Silicone | - |
| Band Colour | White | Black | Green | Pink sand | Black | Waterfall blue |
| BATTERY | Polar Grit X | Fitbit Versa 4 |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 346 mAh | - |
| Battery Life | 7 day(s) | 6 day(s) |
| Battery Life Details | Watch mode - up to 7 days Training mode - up to 40 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 Grit X | Fitbit Versa 4 |
|---|
| Included Accessories | USB charging cable | Charging cable, 6-month Fitbit Premium membership, wristband (129 - 175 mm), wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | - | Google Maps, FitBit Pay, Google Wallet |
| Compliant Standards | MIL-STD 810G | - |
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | 50 °C | 45 °C |
| Min Operating Temperature | -20 °C | -10 °C |
| Warranty | 2-year warranty | 2-year warranty |
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