In depth comparison and review of Fitbit Ionic and Polar Grit X. 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 | Fitbit Ionic | Polar Grit X |
|---|
| Product Type | Smart watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android, Windows Phone | iOS, Android |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Width | 38.6 mm | - |
| Height | 12.4 mm | - |
| Lenght | 256.5 mm | - |
| Depth | 12.4 mm | - |
| Weight | 50 g | - |
| Body Details | - | With band: 64 g Case only: 44 g |
| Body Material | Aerospace-grade aluminium | Stainless steel |
| Protection | Water-resistant | Waterproof |
| Colours | Charcoal, smoke grey | Burnt orange, slate blue | Blue grey, silver grey | - |
| Clock Display | - | Yes |
| FEATURES | Fitbit Ionic | Polar Grit X |
|---|
| Sensors | Accelerometer, altimeter, heart rate | Digital compass, barometer, altimeter, heart rate |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, pace, sleep stages, swim laps, active time | Distance, speed, calories burned, activity, heart rate, steps taken, pace, sleep stages, cadence, running power, swimming metrics, running index |
| Goal Setting | Yes | Yes |
| Features | PurePulse heart rate technology, automatic exercise recognition, SmartTrack | 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 |
| Notifications | Missed calls, calendar, SMS, social apps | SMS, Email, incoming calls |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/QZSS receiver |
| CONNECTIVITY | Fitbit Ionic | Polar Grit X |
|---|
| Wireless Interface | Bluetooth, IEEE 802.11b/g/n, NFC | Bluetooth |
|---|
| DISPLAY | Fitbit Ionic | Polar Grit X |
|---|
| Type | LCD - colour | Colour |
|---|---|---|
| Resolution | - | 240 x 240 pixels |
| Screen Size | - | 1.2" |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass (scratch resistant glass) |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Fitbit Ionic | Polar Grit X |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Fitbit Ionic | Polar Grit X |
|---|
| Crystal Type | - | Laminated Corning Gorilla Glass |
|---|---|---|
| Case Shape | - | Round |
| Bezel | - | Stainless steel |
| Case Details | Silver grey aluminium | White/silver | Black DLC | Silver |
| BAND | Fitbit Ionic | Polar Grit X |
|---|
| Band Type | Sport band | Band |
|---|---|---|
| Band Size | - | S |
| Band Width | - | 22 mm |
| Fits Wrist with Circumference | - | 130-190 mm |
| Changeable | - | Yes |
| Clasp Type | - | Buckle |
| Band Material | - | Silicone |
| Band Colour | Ink blue/ice grey | White | Black | Green |
| BATTERY | Fitbit Ionic | Polar Grit X |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Capacity | - | 346 mAh |
| Battery Life | 4 day(s) | 7 day(s) |
| Battery Life Details | - | Watch mode - up to 7 days Training mode - up to 40 hour(s) |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Fitbit Ionic | Polar Grit X |
|---|
| Included Accessories | Charging cable, 2 wristbands (S+L) | USB charging cable |
|---|---|---|
| Compliant Standards | - | MIL-STD 810G |
| Max Depth of Water Resistance | 50 m | 100 m |
| Max Operating Temperature | - | 50 °C |
| Min Operating Temperature | - | -20 °C |
| Warranty | 1-year warranty | 2-year warranty |
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