Detailed comparison and review of Apple Watch Series 4 (GPS) and Fitbit Sense 2. With our comprehensive overview, you can simply compare size, design, functions, battery capacities, but also other key features of both smartwatches and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the watch that best fits your needs and expectations.
| GENERAL | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | WatchOS 5 | - |
| Supported Host Device OS | iOS | 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 | Speaker |
| Width | 34 mm | 40.5 mm |
| Height | 40 mm | 40.5 mm |
| Depth | 10.7 mm | 12.3 mm |
| Weight | 30.1 g | - |
| Body Material | Anodised aluminium | Aluminium |
| Protection | Water-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Sensors | Accelerometer, ambient light sensor, gyro sensor, barometric altimeter, optical heart sensor, electrical heart sensor | 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, calories burned, activity, heart rate, steps taken, UV index, Air Quality index | 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 | Music remote handling, ECG accurate heart rate, listening to music, Retina Display technology, call alerts, automatic exercise recognition, Fall detection, Emergency SOS | 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 | Calendar, SMS, Email | SMS, applications, high and low heart rate, calls, irregular rhythm |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Audio alert, vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/QZSS receiver | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | Yes | Yes |
| IoT Intelligent Assistant | Siri | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 5.0 | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Type | LTPO OLED - colour | Colour |
|---|---|---|
| Resolution | 324 x 394 pixels | - |
| Screen Protection | Ion-X glass | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Type | Touch sensitive screen (Force Touch) | Touch sensitive screen, push button |
|---|
| CASE | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Case Size | 40 mm | - |
|---|---|---|
| Case Shape | - | Square |
| Case Back | All ceramic and sapphire crystal back | Aluminium |
| Case Details | Silver aluminium | Space grey aluminium | Gold aluminium | Platinum aluminum |
| Crown Type | Digital with haptic feedback | - |
| BAND | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Band Type | Sport band | Band |
|---|---|---|
| Band Size | - | S |
| Fits Wrist with Circumference | 130-200 mm | 129-175 mm |
| Changeable | - | Yes |
| Clasp Type | Pin-and-tuck | Pin-and-tuck |
| Band Material | Fluoroelastomer | - |
| Band Colour | White | Seashell | Black | Pink sand | Lunar white |
| STORAGE | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Storage Capacity | 16 GB | - |
|---|
| CPU | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Manufacturer | Apple | - |
|---|---|---|
| CPU Type | S4 | - |
| Features | W3 Apple wireless chip | - |
| BATTERY | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Life | 18 hours | 6 day(s) |
| Battery Life Details | - | GPS mode - up to 5 hour(s) |
| Recharge Time | - | 2 hours |
| MISCELLANEOUS | Apple Watch Series 4 (GPS) | Fitbit Sense 2 |
|---|
| Included Accessories | Power adapter, magnetic charging cable | 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 | - | 2-year warranty |
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