Side by side comparison and review of Fitbit Ionic and Fitbit Sense. 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 Ionic | Fitbit Sense |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android, Windows Phone | Android 7.0 (Nougat) or later, iOS 12.2 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 38.6 mm | 40.38 mm |
| Height | 12.4 mm | 40.38 mm |
| Lenght | 256.5 mm | - |
| Depth | 12.4 mm | 12.45 mm |
| Weight | 50 g | - |
| Body Material | Aerospace-grade aluminium | Stainless steel, aluminium |
| Protection | Water-resistant | Water-resistant |
| Colours | Charcoal, smoke grey | Burnt orange, slate blue | Blue grey, silver grey | - |
| Clock Display | - | Yes |
| FEATURES | Fitbit Ionic | Fitbit Sense |
|---|
| Sensors | Accelerometer, altimeter, heart rate | Ambient light sensor, altimeter, gyro sensor, 3-axis accelerometer, temperature, optical heart sensor, electrodermal activity (EDA) sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, pace, sleep stages, swim laps, active time | Distance, calories burned, activity, sleep activity, heart rate, steps taken, skin temperature, sleep stages, stress level, menstrual cycle, ECG |
| Goal Setting | Yes | Yes |
| Features | PurePulse heart rate technology, automatic exercise recognition, SmartTrack | Music remote handling, HR zones, breathing training function |
| Notifications | Missed calls, calendar, SMS, social apps | Missed calls, calendar, SMS, social apps |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Google Assistant, Alexa |
| CONNECTIVITY | Fitbit Ionic | Fitbit Sense |
|---|
| Wireless Interface | Bluetooth, IEEE 802.11b/g/n, NFC | IEEE 802.11b/g/n, NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Fitbit Ionic | Fitbit Sense |
|---|
| Type | LCD - colour | AMOLED - colour |
|---|---|---|
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Fitbit Ionic | Fitbit Sense |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Fitbit Ionic | Fitbit Sense |
|---|
| Case Shape | - | Square |
|---|---|---|
| Case Details | Silver grey aluminium | Silver stainless steel | Graphite stainless steel | Soft gold stainless steel |
| BAND | Fitbit Ionic | Fitbit Sense |
|---|
| Band Type | Sport band | Band |
|---|---|---|
| Band Size | - | S/L |
| Fits Wrist with Circumference | - | 140-220 mm |
| Changeable | - | Yes |
| Clasp Type | - | Buckle |
| Band Material | - | Silicone |
| Band Colour | Ink blue/ice grey | Sage grey | Carbon | Lunar white |
| BATTERY | Fitbit Ionic | Fitbit Sense |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Battery Life | 4 day(s) | 6 day(s) |
| Battery Life Details | - | Typical usage - up to 6 days GPS mode - up to 12 hour(s) |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Fitbit Ionic | Fitbit Sense |
|---|
| Included Accessories | Charging cable, 2 wristbands (S+L) | Charging cable, 2 wristbands (S+L) |
|---|---|---|
| Preloaded Software | - | FitBit Pay |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Warranty | 1-year warranty | - |
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