Side by side comparison and review of Fitbit Sense and Polar Grit X Pro. 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 | Fitbit Sense | Polar Grit X Pro |
|---|
| Product Type | Smart watch | Sport watch |
|---|---|---|
| Supported Host Device OS | Android 7.0 (Nougat) or later, iOS 12.2 or later | iOS, Android |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | - |
| Audio Output | Speaker | - |
| Width | 40.38 mm | - |
| Height | 40.38 mm | - |
| Depth | 12.45 mm | - |
| Body Details | - | With leather band: 53 g With FKM band: 73 g |
| Body Material | Stainless steel, aluminium | Aerospace titanium |
| Protection | Water-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Fitbit Sense | Polar Grit X Pro |
|---|
| Sensors | Ambient light sensor, altimeter, gyro sensor, 3-axis accelerometer, temperature, optical heart sensor, electrodermal activity (EDA) sensor | Accelerometer, digital compass, barometer, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken, skin temperature, sleep stages, stress level, menstrual cycle, ECG | Distance, speed, calories burned, sleep activity, heart rate, steps taken |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, HR zones, breathing training function | SMS notification, Email notification, mobile notifications, social apps notification, inactivity alert, incoming calls notification, sunrise/sunset times, Serene (breathing exercise), music playback control, weather information, Nightly Recharge recovery measurement, FitSpark training guide, FuelWise smart fueling assistant, Hill Splitter, Route guidance, Route planning with Komoot |
| Notifications | Missed calls, calendar, SMS, social apps | - |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS receiver | GPS/A-GPS/Galileo/GLONASS/QZSS receiver |
| Payment Technology | FitBit Pay | - |
| Internet of Things (IoT) Compatible | Yes | - |
| IoT Intelligent Assistant | Google Assistant, Alexa | - |
| CONNECTIVITY | Fitbit Sense | Polar Grit X Pro |
|---|
| Wireless Interface | IEEE 802.11b/g/n, NFC, Bluetooth 5.0 | Bluetooth |
|---|
| DISPLAY | Fitbit Sense | Polar Grit X Pro |
|---|
| Type | AMOLED - colour | Memory-in-Pixel LCD - colour - transflective |
|---|---|---|
| Resolution | - | 240 x 240 pixels |
| Screen Size | - | 1.2" |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Sapphire glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Fitbit Sense | Polar Grit X Pro |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Fitbit Sense | Polar Grit X Pro |
|---|
| Case Shape | Square | Round |
|---|---|---|
| Bezel | - | Titanium |
| Case Back | - | Glass fibre reinforced polymer |
| Case Details | Silver stainless steel | Graphite stainless steel | Soft gold stainless steel | Titan | Black DLC |
| BAND | Fitbit Sense | Polar Grit X Pro |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S/L | M/L |
| Band Width | - | 22 mm |
| Fits Wrist with Circumference | 140-220 mm | 145-215 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Perforated leather |
| Band Colour | Sage grey | Carbon | Lunar white | Grey | Black |
| BATTERY | Fitbit Sense | Polar Grit X Pro |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | - | 346 mAh |
| Battery Life | 6 day(s) | 7 day(s) |
| Battery Life Details | Typical usage - up to 6 days GPS mode - up to 12 hour(s) |
Training mode (GPS and wrist-based heart rate) - up to 40 hour(s) Watch mode - up to 7 days Training mode (with power save options) |
| Rechargeable Battery | Yes | Yes |
| MISCELLANEOUS | Fitbit Sense | Polar Grit X Pro |
|---|
| Included Accessories | Charging cable, 2 wristbands (S+L) | USB charging cable, FKM wristband |
|---|---|---|
| Preloaded Software | FitBit Pay | - |
| Max Depth of Water Resistance | 50 m | 100 m |
| Max Operating Temperature | 45 °C | 50 °C |
| Min Operating Temperature | -10 °C | -20 °C |
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