Side by side comparison and review of ASUS ZenWatch 3 WI503Q 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 | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Android Wear | - |
| Supported Host Device OS | Android 4.3 (Jelly Bean) or later, iOS 8.2 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 | Speaker |
| Width | - | 40.5 mm |
| Height | - | 40.5 mm |
| Depth | - | 12.3 mm |
| Body Details | Main unit: 60 g Wrist strap: 20 g |
- |
| Body Material | 316L stainless steel alloy | Aluminium |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Sensors | Ambient light sensor, 6-axis accelerometer | 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, steps taken | 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 | Call handling, camera remote control, phone unlocking | 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 | - | 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 | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 4.1 | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Type | AMOLED - colour | Colour |
|---|---|---|
| Resolution | 400 x 400 pixels | - |
| Screen Size | 1.39" | - |
| Pixel Density | 287 ppi | - |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass), 2.5D Arc Glass | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Touchscreen Technology | Capacitive | - |
|---|---|---|
| Type | Touch sensitive screen (multi-touch) | Touch sensitive screen, push button |
| CASE | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Case Size | 45 mm | - |
|---|---|---|
| Case Shape | Round | Square |
| Case Back | - | Aluminium |
| Case Details | Gunmetal | Platinum aluminum |
| BAND | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | - | S |
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | - | 129-175 mm |
| Changeable | Yes | Yes |
| Clasp Type | - | Pin-and-tuck |
| Band Material | Leather | - |
| Band Colour | Dark brown | Lunar white |
| STORAGE | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Storage Capacity | 4 GB | - |
|---|
| RAM | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| RAM Size | 512 MB | - |
|---|
| CPU | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Manufacturer | Qualcomm | - |
|---|---|---|
| CPU Type | Snapdragon Wear 2100 | - |
| BATTERY | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 340 mAh | - |
| Battery Life | - | 6 day(s) |
| Battery Life Details | - | GPS mode - up to 5 hour(s) |
| Recharge Time | - | 2 hours |
| MISCELLANEOUS | ASUS ZenWatch 3 WI503Q | Fitbit Sense 2 |
|---|
| Included Accessories | Power adapter, magnetic charging cable | Charging cable, 6-month Fitbit Premium membership, wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | Stopwatch, Alarm, Timer | Alarm, FitBit Pay |
| Compliant Standards | IP67 | - |
| Max Depth of Water Resistance | 1 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Warranty | 1-year warranty | 2-year warranty |
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