With 38mm Silver Apple Watch Series 3 Cellular stay connected even without your phone. The watch comes with a Silver aluminum chassis and a White Sport band. It is designed for users looking for the next generation of connectivity. The Cellular Apple Watch has an electronic SIM built-in so you can make and receive calls, send texts, and see app notifications. This Apple Watch features a 1.5" OLED Retina display with 340 x 272 display resolution and digital crown.
The Apple Watch features an optical heart sensor to quickly check your heart rate and an electric heart sensor that works with the crown to generate an ECG (electrocardiogram). Workouts are easier than ever to track thanks to the built-in GPS and altimeter, so you get a clear summary of your speed, distance, climb and route. The Apple Watch connects to your iPhone via Bluetooth 4.2. It can also connect directly to the Internet via Wi-Fi. The internal battery lasts for up to 18 hours of normal use.
Heart Rate Monitor
You can check your heart rate at any time with built-in heart rate monitor. The irregular heart rhythms (arrhythmias), high heart rates, and low heart rates, can all be indicators of a possible underlying problem. The Apple Watch is engineered to monitor this reading and alert you to any irregularities.
The built-in GPS lets you navigate and get accurate workout data. It connects quickly to GPS satellites and records distance, speed, and pace for your workout as well as the route you traveled and whether you're walking, running or cycling.
The Apple Watch Series 3 is designed to withstand the pressure equivalent of being 164' underwater (5 ATM), meaning that it's suitable for rain, spills, showers, pools and oceans at shallow depths. Its internal speaker uses its own vibrations to force water out once it's clear of the waves.