Side by side comparison and review of ASUS ZenWatch 3 WI503Q and Fitbit Versa 4. 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 Versa 4 |
|---|
| 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 10 or later, iOS 13.4 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | Speaker | Speaker |
| Width | - | 40.5 mm |
| Height | - | 40.5 mm |
| Depth | - | 11.2 mm |
| Body Details | Main unit: 60 g Wrist strap: 20 g |
- |
| Body Material | 316L stainless steel alloy | - |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Sensors | Ambient light sensor, 6-axis accelerometer | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, optical heart sensor, vibration motor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, steps taken | Distance, calories burned, activity, sleep activity, heart rate, steps taken, pace, stress level, menstrual cycle, Resting Heart Rate (RHR), breathing rate, sleep quality score |
| Modes | - | 40+ sports modes |
| Goal Setting | Yes | Yes |
| Features | Call handling, camera remote control, phone unlocking | Find phone function, VO2 max, Heart Rate Variability (HRV) monitoring, HR zones, automatic exercise recognition, smart Wake-Up, Active Zone Minutes, guided breathing session, Always-on display, Sleep Score, Sleep Profile, Stress Management Score, Daily Readiness Score |
| Notifications | Calendar, SMS, Email | SMS, incoming calls, applications, high and low heart rate |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, 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 |
| CONNECTIVITY | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 4.1 | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| 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 Versa 4 |
|---|
| Touchscreen Technology | Capacitive | - |
|---|---|---|
| Type | Touch sensitive screen (multi-touch) | Touch sensitive screen |
| CASE | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Case Size | 45 mm | 40 mm |
|---|---|---|
| Case Shape | Round | Square |
| Case Details | Gunmetal | Copper rose | Graphite | Platinum |
| BAND | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | - | S/L |
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | - | Up to 209 mm |
| Changeable | Yes | Yes |
| Clasp Type | - | Pin-and-tuck |
| Band Material | Leather | - |
| Band Colour | Dark brown | Pink sand | Black | Waterfall blue |
| STORAGE | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Storage Capacity | 4 GB | - |
|---|
| RAM | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| RAM Size | 512 MB | - |
|---|
| CPU | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Manufacturer | Qualcomm | - |
|---|---|---|
| CPU Type | Snapdragon Wear 2100 | - |
| BATTERY | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 340 mAh | - |
| Battery Life | - | 6 day(s) |
| Battery Life Details | - | Typical usage - up to 6 days GPS mode - up to 12 hour(s) |
| Rechargeable Battery | - | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | ASUS ZenWatch 3 WI503Q | Fitbit Versa 4 |
|---|
| Included Accessories | Power adapter, magnetic charging cable | Charging cable, 6-month Fitbit Premium membership, wristband (129 - 175 mm), wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | Stopwatch, Alarm, Timer | Google Maps, FitBit Pay, Google Wallet |
| 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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