Side by side comparison and review of ASUS ZenWatch 3 WI503Q and Apple Watch Ultra. 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 | Apple Watch Ultra |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Android Wear | WatchOS |
| Supported Host Device OS | Android 4.3 (Jelly Bean) or later, iOS 8.2 or later | iOS 16 or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Three-microphone array |
| Audio Output | Speaker | Dual speakers |
| Body Details | Main unit: 60 g Wrist strap: 20 g |
Case only: 61.3 g |
| Body Material | 316L stainless steel alloy | Aerospace-grade titanium |
| Protection | Waterproof | Water-resistant, splash-resistant, corrosion resistant, dust-resistant |
| Clock Display | Yes | Yes |
| FEATURES | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Sensors | Ambient light sensor, 6-axis accelerometer | Accelerometer, ambient light sensor, digital compass, depth gauge, electrical heart sensor, ECG sensor, blood oxygen sensor, gyroscope, water temperature sensor, temperature sensing, optical heart sensor (3d gen), always-on altimeter |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, steps taken | Distance, time, calories burned, activity, sleep activity, heart rate, blood oxygen saturation, sleep stages, menstrual cycle, ECG, ovulation phase, rapid eye movement (REM), depth |
| Modes | - | Night mode |
| Goal Setting | Yes | Yes |
| Features | Call handling, camera remote control, phone unlocking | Call handling, store & play music, Fall detection, Emergency SOS, heart rate zones, brightness: 2000 nits, Family Setup support, International Emergency Calling, Siren (86-decibel), Crash Detection, noise monitoring, Compass Waypoint |
| Notifications | Calendar, SMS, Email | Calendar, SMS, Email, high and low heart rate, irregular rhythm, cardio fitness |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Payment Technology | - | Apple Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Siri |
| IoT Voice Controlled | - | Direct |
| CELLULAR | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Technology | - | WCDMA (UMTS) |
|---|---|---|
| Mobile Broadband Generation | - | 4G |
| SIM Card Type | - | Electronic SIM card (e-SIM) |
| CONNECTIVITY | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| 3M UMTS Band | - | Band 1, Band 2, Band 5, Band 8, Band 10 |
|---|---|---|
| 4G LTE Band | - | Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 7, Band 8, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 39, Band 40, Band 41, Band 66 |
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 4.1 | IEEE 802.11b/g/n, LTE, Ultra-Wideband (UWB), Bluetooth 5.3 |
| DISPLAY | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Type | AMOLED - colour | Retina LTPO OLED - colour |
|---|---|---|
| Resolution | 400 x 400 pixels | 410 x 502 pixels |
| Screen Size | 1.39" | - |
| Pixel Density | 287 ppi | - |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass), 2.5D Arc Glass | Flat sapphire front crystal with display edge protection |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Touchscreen Technology | Capacitive | - |
|---|---|---|
| Type | Touch sensitive screen (multi-touch) | Touch sensitive screen, customisable action button, side button |
| CASE | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Case Size | 45 mm | 49 mm |
|---|---|---|
| Case Shape | Round | Rectangular |
| Case Details | Gunmetal | Titanium |
| Crown Type | - | Digital with haptic feedback |
| BAND | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Band Type | Band | Alpine Loop |
|---|---|---|
| Band Size | - | S |
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | - | 130-160 mm |
| Changeable | Yes | Yes |
| Clasp Type | - | G-hook |
| Band Material | Leather | Textile |
| Band Colour | Dark brown | Orange | Green | Yellow/beige | Blue/gray | Starlight | Black/gray | White | Yellow | Midnight |
| STORAGE | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Storage Capacity | 4 GB | 32 GB |
|---|
| RAM | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| RAM Size | 512 MB | - |
|---|
| CPU | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Manufacturer | Qualcomm | Apple |
|---|---|---|
| CPU Type | Snapdragon Wear 2100 | S8 SiP |
| Features | - | W3 Apple wireless chip, U1 chip |
| BATTERY | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Capacity | 340 mAh | - |
| Battery Life | - | 36 hours |
| Battery Life Details | - | Normal use - up to 36 hour(s) With LTE - up to 18 hour(s) Power saving mode - up to 60 hour(s) |
| Rechargeable Battery | - | Yes |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | ASUS ZenWatch 3 WI503Q | Apple Watch Ultra |
|---|
| Included Accessories | Power adapter, magnetic charging cable | Magnetic fast charger to USB-C cable (1 m) |
|---|---|---|
| Preloaded Software | Stopwatch, Alarm, Timer | GymKit, Oceanic+ |
| Compliant Standards | IP67 | IP6X, MIL-STD-810H, EN13319 |
| SAR Value | - | 0.35 W/kg (head), 0.6 W/kg (limb) |
| Max Depth of Water Resistance | 1 m | 100 m |
| Max Operating Temperature | - | 55 °C |
| Min Operating Temperature | - | -20 °C |
| Manufacturer Model Number | - | A2684 |
| Warranty | 1-year warranty | 1-year warranty |
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