The Apple Watch Series 4 4G LTE Aluminum features a 40mm or 44mm case size made from aluminum, paired with an Ion-X strengthened glass display. It has a retina LTPO OLED screen with a resolution of 324 x 394 pixels on the 40mm model and 368 x 448 pixels on the 44mm model. The device is powered by the Apple S4 dual-core 64-bit processor, which improves performance compared to previous models. It includes 1GB of RAM and 16GB of internal storage.
This smartwatch runs on watchOS 5, supporting various health and fitness tracking features.It incorporates an electrical heart sensor and a second-generation optical heart sensor, enabling ECG functionality and irregular heart rhythm notifications. The device also includes an accelerometer and gyroscope capable of detecting falls. It supports GPS and GLONASS for location tracking.
Connectivity options include 4G LTE, Wi-Fi 802.11b/g/n, and Bluetooth 5.0.The apple Watch Series 4 4G LTE Aluminum is equipped with a built-in speaker and microphone for calls and siri voice commands. It has a battery capacity that provides up to 18 hours of usage, depending on activity. The watch supports wireless charging via a magnetic charging cable.
Additional sensors include an ambient light sensor and a barometric altimeter. The device is water-resistant up to 50 meters, suitable for shallow-water activities but not for scuba diving or high-velocity water sports. The watch supports Apple Pay through NFC and includes fall detection and emergency SOS features. It is indeed compatible with iPhone 6s or later running iOS 12 or higher.
Technology | GSM / HSPA / LTE |
2G Network Bands | GSM 850 / 900 / 1800 / 1900 |
3G Network Bands | HSDPA 850 / 900 / 2100 / 800 - Europe, Australia |
4G Network Bands |
HSDPA 850 / 900 / 2100 / 800 - Europe, Australia HSDPA 850 / 1700(AWS) / 1900 / 800 - USA, LATAM, Canada HSDPA 2100 - China |
Speed | HSPA 21.1/5.76 Mbps /LTE Cat4 150 /50 |
Also Known As |
- - |
Dimensions |
44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in) - 44mm; 40 x 34 x 10.7 mm (1.57 x 1.34 x 0.42 in) - 40mm |
Weight |
36.7 g (1.31 oz) - 44mm; 30 g (1.06 oz) - 40mm |
Build | Aluminum frame; all-ceramic/sapphire crystal back |
SIM Type | Electronic SIM card (eSIM) |
Display Type | LTPO AMOLED capacitive touchscreen, 16M colors |
Size |
1.78 inches, 10.0 cm2 (~60.0% screen-to-body ratio) - 44mm; 1.57 inches, 7.8 cm2 (~57.0% screen-to-body ratio) - 40mm |
Resolution |
448 x 368 pixels (~326 ppi density) - 44mm; 394 x 324 pixels (~326 ppi density) - 40mm |
Operating System | watchOS 5.0, upgradable to 5.1.3 |
Chipset | Apple S4 (12 nm) |
CPU | Dual-core 1.0 GHz Cortex-A7 |
GPU | PowerVR G6200 |
RAM + ROM | 16 GB |
Card Slot | No |
Camera Type | None |
Camera Type | None |
Loudspeaker | Yes |
Speaker Location | Side |
Audio Jack Type | No |
Bluetooth | Bluetooth 5.0, A2DP, LE |
NFC | |
GPS | Yes, with A-GPS, GLONASS, GALILEO, QZSS |
FM Radio | No |
Battery Capacity | Non-removable Li-Ion 279 mAh battery (1.07 Wh) |
Stand-by | Up to 18 h (mixed usage) |
Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass |
Box Contents | Charging Brick / USB cable |
Note: Specifications may not be 100% accurate.