Side by side comparison and review of Fitbit Ionic and Fitbit Sense 2. 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 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android, Windows Phone | Android 8.0 (Oreo) or later, iOS 14 or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 38.6 mm | 40.5 mm |
| Height | 12.4 mm | 40.5 mm |
| Lenght | 256.5 mm | - |
| Depth | 12.4 mm | 12.3 mm |
| Weight | 50 g | - |
| Body Material | Aerospace-grade aluminium | 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 2 |
|---|
| Sensors | Accelerometer, altimeter, heart rate | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, temperature, optical heart sensor, electrodermal activity (EDA) sensor, vibration motor, multipurpose electrical 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, floors climbed, blood oxygen saturation, stress level, active time, menstrual cycle, breathing rate, temperature, sleep quality score, blood glucose |
| Modes | - | 40+ sports modes |
| Goal Setting | Yes | Yes |
| Features | PurePulse heart rate technology, automatic exercise recognition, SmartTrack | Find phone function, automatic exercise recognition, breathing training function, Active Zone Minutes, HRV index, Sleep Score, Sleep Profile, Stress Management Score, Daily Readiness Score, all day body response tracking, cardio fitness score |
| Notifications | Missed calls, calendar, SMS, social apps | SMS, applications, high and low heart rate, calls, irregular rhythm |
| 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 | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Fitbit Ionic | Fitbit Sense 2 |
|---|
| Wireless Interface | Bluetooth, IEEE 802.11b/g/n, NFC | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Fitbit Ionic | Fitbit Sense 2 |
|---|
| Type | LCD - colour | Colour |
|---|---|---|
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Fitbit Ionic | Fitbit Sense 2 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push button |
|---|
| CASE | Fitbit Ionic | Fitbit Sense 2 |
|---|
| Case Shape | - | Square |
|---|---|---|
| Case Back | - | Aluminium |
| Case Details | Silver grey aluminium | Platinum aluminum |
| BAND | Fitbit Ionic | Fitbit Sense 2 |
|---|
| Band Type | Sport band | Band |
|---|---|---|
| Band Size | - | S |
| Fits Wrist with Circumference | - | 129-175 mm |
| Changeable | - | Yes |
| Clasp Type | - | Pin-and-tuck |
| Band Colour | Ink blue/ice grey | Lunar white |
| BATTERY | Fitbit Ionic | Fitbit Sense 2 |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Battery Life | 4 day(s) | 6 day(s) |
| Battery Life Details | - | GPS mode - up to 5 hour(s) |
| Recharge Time | - | 2 hours |
| MISCELLANEOUS | Fitbit Ionic | Fitbit Sense 2 |
|---|
| Included Accessories | Charging cable, 2 wristbands (S+L) | Charging cable, 6-month Fitbit Premium membership, wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | - | Alarm, 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 | 2-year warranty |
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