In depth comparison and review of Samsung Gear S2 and Fitbit Sense 2. 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 | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Tizen OS | - |
| Supported Host Device OS | Android 4.4 (KitKat) or later | Android 8.0 (Oreo) or later, iOS 14 or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | - | Speaker |
| Width | 39.9 mm | 40.5 mm |
| Height | 43.6 mm | 40.5 mm |
| Depth | 11.4 mm | 12.3 mm |
| Weight | 42 g | - |
| Body Material | Stainless steel | Aluminium |
| Protection | Dustproof, waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Sensors | Accelerometer, ambient light sensor, barometer, gyro sensor, 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, time, speed, calories burned, activity, heart rate, steps taken, water vs. caffeine intake | 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 |
| Features | Call handling, find phone function, voice control | 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 | SMS | SMS, applications, high and low heart rate, calls, irregular rhythm |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Digital Player | MP3, AAC, M4A, OGG, AAC +, eAAC+ | - |
| 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 |
| CELLULAR | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Messaging Services | LINE, SMS | - |
|---|---|---|
| Supported Mobile Messaging Services | SMS | - |
| CONNECTIVITY | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, NFC, Bluetooth 4.1 | NFC, Bluetooth 5.0 |
|---|---|---|
| Bluetooth Profiles | Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - |
| DISPLAY | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Type | Super AMOLED - colour | Colour |
|---|---|---|
| Resolution | 360 x 360 pixels | - |
| Screen Size | 1.2" | - |
| Aspect Ratio | Full circle | - |
| Pixel Density | 302 ppi | - |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push button |
|---|
| CASE | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Case Size | 40 mm | - |
|---|---|---|
| Case Shape | - | Square |
| Case Back | - | Aluminium |
| Case Details | Black | Rose gold | Blue black | Platinum aluminum |
| BAND | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | - | S |
| Band Width | 20 mm | - |
| Fits Wrist with Circumference | - | 129-175 mm |
| Changeable | - | Yes |
| Clasp Type | - | Pin-and-tuck |
| Band Material | Leather | - |
| Band Colour | Black | Ivory | Lunar white |
| STORAGE | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Storage Capacity | 4 GB | - |
|---|---|---|
| User Memory | 1.9 GB | - |
| RAM | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| RAM Size | 512 MB | - |
|---|
| CPU | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Manufacturer | Samsung | - |
|---|---|---|
| CPU Type | Exynos 3250 | - |
| Clock Speed | 1 GHz | - |
| BATTERY | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Capacity | 250 mAh | - |
| Battery Life | 3 day(s) | 6 day(s) |
| Battery Life Details | Low usage - up to 4 days | GPS mode - up to 5 hour(s) |
| Recharge Time | - | 2 hours |
| Wireless Charging | Yes | - |
| MISCELLANEOUS | Samsung Gear S2 | Fitbit Sense 2 |
|---|
| Included Accessories | Power adapter, wireless charging dock | Charging cable, 6-month Fitbit Premium membership, wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | Contacts, E-mail, Messages, Music Player, Twitter, Samsung Apps, News, Gallery, Weather, S Voice, S Health, Notification Center, Nike+ Running | Alarm, FitBit Pay |
| Compliant Standards | IP68 | - |
| Max Depth of Water Resistance | - | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Manufacturer Model Number | SM-R732 | - |
| Warranty | - | 2-year warranty |
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