Compare Apple Watch Series 4 40mm
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 |  |  |  |  | Add smartwatch to comparison |
|---|---|---|---|---|---|
| Dimensions: | 40 x 34 x 10.7 mm | 41 x 35 x 10.7 mm | 40 x 34 x 10.74 mm | 40 x 34 x 10.4 mm | |
| Weight: | 30.1 grams | 32 grams | 30.1 grams | 30.5 grams | |
| Stand-by: | 0.8 days | depends on usage | depends on usage | depends on usage | |
| Talk time: | depends on usage | depends on usage | depends on usage | depends on usage | |
| Announced: | 12 september 2018 | 7 september 2022 | 10 september 2019 | 15 september 2020 | |
Design type | |||||
| Watch: | |||||
Controls | |||||
| Touchscreen: | Capacitive | Force Touch, capacitive | Force Touch, capacitive | Force Touch, capacitive | |
| Voice command: | |||||
| Directional key: | |||||
Operating system | |||||
| watchOS: | 4.0 | 9 | 6 | 7 | |
Display | |||||
| Color display: | Adjustable display brightness, 16.777.216 colors (24 bits), OLED | Adjustable display brightness, 16.777.216 colors (24 bits), OLED, Always On feature | Adjustable display brightness, 16.777.216 colors (24 bits), OLED | Adjustable display brightness, 16.777.216 colors (24 bits), OLED, Always On feature | |
| Resolution: | 272 x 340 pixels | 352 x 430 pixels | 272 x 340 pixels + 312 x 390 pixels | 324 x 394 pixels | |
| Size: | 1.34 inch | 1.69 inch | 1.34 inch + 1.65 inch | 1.57 inch | |
| Aspect ratio: | 5:4 | 5:4 | 10.9:9 | ||
| Pixels Per Inch (PPI): | 325 | 329 | 373 | 325 | |
| Screen-to-body ratio: | 41.6% | 62.9% | 41.6% | 57.4% | |
| Peak brightness: | 1000 nits | 1000 nits | |||
Hardware | |||||
| Processor: | Apple S4, Dual Core | Apple S8, Dual Core | Apple S5 | Apple S6, Dual Core | |
Materials | |||||
| Dust and waterproof: | IPX7 | IPX6, 5 ATM | IPX7 | IPX7, 5 ATM | |
| Aluminium: | |||||
| Sapphire Crystal: | |||||
| Stainless Steel: | |||||
Telephony | |||||
| Integrated handsfree speaker: | |||||
| Vibrating alert: | |||||
Personal Information | |||||
| Alarm clock: | |||||
| Date and time notation: | |||||
| Reminder list: | |||||
| Stopwatch & countdown timer: | |||||
Available applications | |||||
| Pedometer: | |||||
| Photo album: | |||||
Navigation | |||||
| Build-in navigation system: | Apple Maps | Apple Maps | Apple Maps | Apple Maps | |
| GLONASS: | |||||
| GPS receiver: | |||||
| Digital Compass: | |||||
| Galileo: | |||||
| Quasi-Zenith (QZSS).: | |||||
Audio | |||||
| Built-in speakers: | |||||
| Microphone: | |||||
Build-in memory | |||||
| Internal memory: | |||||
| Size (RAM): | 512 MB | 512 MB | |||
| Storage: | 16 GB | 32 GB | 16 GB | 32 GB | |
Connectivity | |||||
| Bluetooth: | v5.0 | v5.0 | v5.0 | v5.0 | |
| Synchronisation: | |||||
| Wireless Lan (WLAN/Wi-Fi): | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | |
| NFC: | |||||
| Ultra-wideband (UWB): | |||||
Power supply | |||||
| Battery: | Li-ion | Li-ion | Li-ion | Li-ion | |
| Capacity: | 273 mAh | 282 mAh | 273 mAh | 273 mAh | |
| Wireless charging: | |||||
Sensors | |||||
| Ambient light sensor: | |||||
| Barometer: | |||||
| Gesture recognition: | |||||
| Gyroscope: | |||||
| Heart rate monitor: | |||||
| Altimeter: | |||||
| Oxygen saturation (SpO2): | |||||
Compatibility | |||||
| With iOS: | 8.3+ | From 16 | 8.3+ | 8.3+ | |
