Apple Watch Series 4 (40mm) Stainless Steel case GPS + Cellular smartwatch

The Apple Watch Series 4 (40mm) Stainless Steel case GPS + Cellular is a smartwatch with a 1.5-inch touchscreen color OLED Retina display, compatible with iOS and includes step counting, sleep tracking, and calories burned.


The Apple Watch Series 4 (40mm) Stainless Steel case GPS + Cellular is a smartwatch compatible with iOS and includes real-time heart-rate monitor, steps, sleep, and calories. It has a touchscreen display with 324 x 394 screen resolution but lacks always-on display capability. It has an on-screen battery indicator and a wireless magnetic charging dock. It has phone notifications and vibration/sound alerts. It includes inactivity alerts that remind you to move if you are sitting for a long time. It has a find my phone and find my watch feature, can control playback of music stored on your smartphone and can control playback of music stored on your watch. It can accept phone calls on the watch and dismiss phone calls from the watch. Has WiFi, GPS and NFC. The manufacturer offers changeable straps and weather at-wrist. Walkie-Talkie app feature allows you to talk to other Apple watch users via WiFi or Cellular but only one person can talk at a time. The OLED display is larger than previous Apple models and it's thinner. New features include an EKG module, low as well as high heart rate monitoring and notifications. Unlocked LTE 4G adds $100 (service typically costs $10/month with carriers). With the new accelerometer and gyroscope, Apple Watch Series 4 can detect that you’ve fallen; when an incident like this occurs, a hard fall alert is delivered, and you can easily initiate a call to emergency services or dismiss the alert -- if you’re unresponsive after 60 seconds, the emergency call will be placed automatically and a message with your location will be sent to your emergency contacts. Also, you no longer need to say “Hey Siri,” just raise your wrist and speak. It has multi-sport tracking features: outdoor walk, outdoor run, outdoor cycle, indoor walk, indoor run, indoor cycle, elliptical, rower, stair stepper, high intensity interval training, hiking, yoga, pool swim, open water swim. Its dimensions are 1.5 x 1.8 x 0.4 inches (LxWxD) and it weighs 2.4 ounces.


Cellular Cellular Has the ability to connect to a cellular network without a smartphone.
Phone compatibility Phone compatibility Indicates which phones, either specific models or the operating system they use that works with the watch.
Standalone GPS Standalone GPS Standalone GPS means you connect to GPS from your watch without bringing your phone with you.
Standalone music Standalone music Standalone music means you connect to your headphones from your watch without bringing your phone with you.
NFC NFC A short-range wireless technology that triggers a transaction between the watch and another device, usually by bumping them together. On smartwatches, it’s most often used to initiate the pairing sequence with a new phone or tablet to authorize payments at a retailer’s pay terminal.
WiFi WiFi A long-range wireless communication technology that enables a smartwatch to pair with a smartphone and with other devices within a home network or remote location via the Internet.
Heart-rate monitor Heart-rate monitor Indicates what type of heart-rate monitor is used, if at all. The two main types are active and stationary. Stationary heart-rate monitors measure your pulse only at intervals you choose, mostly at rest. Active heart-rate monitors measure your pulse continuously, or automatically at variable intervals.
Display type Display type Technology used by the display, such as OLED, AMOLED, Super AMOLED, LCD, or e-paper.
color OLED Retina
Touch screen Touch screen Indicates whether the watch can be controlled by touching its display.
Battery life (claimed) Battery life Claimed number days, often a range, manufacturer says the watch will function on a charge.
18 Hrs
Depth and duration (ft., min.) Depth and duration How resistant the watch is to submersion in water, as tested by subjecting the device to a water pressure equivalent to the depth the manufacturer claims the smartwatch can withstand.
164 feet for 10 minutes


Crystal type Crystal type The material used to protect the display. Often it’s made of a mineral such as sapphire or quartz, or other materials such as glass or plastic.
Ion-X glass
Case material Case material Primary material used to manufacture the case, excluding the display.
Stainless steel
Diameter (in.) Diameter The diameter of the case, measured to nearest tenth of an inch.
Display size (in.) Display size Size of the active screen, to the nearest tenth of an inch.
Weight (oz.) Weight Weight of watch in ounces.
Thickness (in.) Thickness Thickness of the watch measured to the nearest tenth of an inch.