Detailed comparison and review of Apple Watch Series 4 (GPS) and Apple Watch Series 9 (GPS). 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) | Apple Watch Series 9 (GPS) |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | WatchOS 5 | WatchOS 10 |
| Supported Host Device OS | iOS | iOS 17 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | Speaker | Speaker |
| Width | 34 mm | - |
| Height | 40 mm | - |
| Depth | 10.7 mm | - |
| Weight | 30.1 g | - |
| Body Details | - | Case only: 31.9 g |
| Body Material | Anodised aluminium | 100% recycled aluminium |
| Protection | Water-resistant | Water-resistant, dust-resistant, crack-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Sensors | Accelerometer, ambient light sensor, gyro sensor, barometric altimeter, optical heart sensor, electrical heart sensor | Digital compass, electrical heart sensor, blood oxygen sensor, optical heart sensor (3d gen), always-on altimeter, temperature sensor, high-g accelerometer, gyroscope with high dynamic range |
|---|---|---|
| Tracking Data | Distance, time, calories burned, activity, heart rate, steps taken, UV index, Air Quality index | Distance, time, calories burned, activity, sleep activity, heart rate, blood oxygen saturation, sleep stages, menstrual cycle, ECG, ovulation phase, mental wellbeing |
| 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 | Fall detection, Emergency SOS, brightness: 2000 nits, Family Setup support, International Emergency Calling, Crash Detection, noise monitoring, Compass Waypoint, fast charge, precision finding for iPhone, elevation view |
| Notifications | Calendar, SMS, Email | Calendar, SMS, Email, applications, high and low heart rate, irregular rhythm, cardio fitness |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Audio alert, vibration alert, visual interface | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/QZSS receiver | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Payment Technology | - | Apple Pay |
| Internet of Things (IoT) Compatible | Yes | Yes |
| IoT Intelligent Assistant | Siri | Siri |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 5.0 | IEEE 802.11b/g/n, Ultra-Wideband (UWB), Bluetooth 5.3 |
|---|
| DISPLAY | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Type | LTPO OLED - colour | Retina LTPO OLED - colour |
|---|---|---|
| Resolution | 324 x 394 pixels | 352 x 430 pixels |
| Screen Protection | Ion-X glass | Ion-X glass |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Type | Touch sensitive screen (Force Touch) | Touch sensitive screen, side button, double tap gesture |
|---|
| CASE | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Case Size | 40 mm | 41 mm |
|---|---|---|
| Case Shape | - | Rectangular |
| Case Back | All ceramic and sapphire crystal back | Sapphire crystal and ceramic back |
| Case Details | Silver aluminium | Space grey aluminium | Gold aluminium | Starlight aluminium | Red aluminium | Midnight aluminium | Pink aluminum | Silver aluminium |
| Crown Type | Digital with haptic feedback | Digital with haptic feedback |
| BAND | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Band Type | Sport band | Sport band |
|---|---|---|
| Band Size | - | M/L |
| Fits Wrist with Circumference | 130-200 mm | 150-200 mm |
| Changeable | - | Yes |
| Clasp Type | Pin-and-tuck | Pin-and-tuck |
| Band Material | Fluoroelastomer | Fluoroelastomer |
| Band Colour | White | Seashell | Black | Pink sand | Starlight | Red | Midnight | Light pink | Storm blue | Winter blue |
| STORAGE | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Storage Capacity | 16 GB | 64 GB |
|---|
| CPU | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Manufacturer | Apple | Apple |
|---|---|---|
| CPU Type | S4 | S9 SiP |
| Features | W3 Apple wireless chip | W3 Apple wireless chip, second-generation Ultra Wideband chip, 4-core Neural Engine |
| BATTERY | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Life | 18 hours | 18 hours |
| Battery Life Details | - | Typical usage - up to 18 hour(s) Low power mode - up to 36 hour(s) |
| Rechargeable Battery | - | Yes |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | Apple Watch Series 4 (GPS) | Apple Watch Series 9 (GPS) |
|---|
| Included Accessories | Power adapter, magnetic charging cable | Magnetic fast charger to USB-C cable (1 m) |
|---|---|---|
| Preloaded Software | - | GymKit |
| Compliant Standards | - | IP6X, BFR-free, PVC-free, Beryllium-free, Mercury-free, Arsenic-free |
| Specific Absorption Rate (SAR) | - | 0.12 W/kg (head) 0.29 W/kg (limb) |
| Carbon Footprint | - | 0 kg carbon emissions |
| Max Depth of Water Resistance | 50 m | 50 m |
| Manufacturer Model Number | - | A2978 |
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