Both models are IP68-rated for water and dust resistance.
Gear S3 Frontier supports 3G/4G LTE connectivity and comes with silicon bands and is black in color.
Gear S3 Classic supports Wi-Fi, Bluetooth and comes with leather bands and is silver in color.
Both Gear S3 models have built-in speaker and microphone that lets you make or take hands-free calls right away on the device.
Price & Availability
Both Smartwatches operate on Tizen Based Wearable OS 2.3.1, powered by Exynos 7270 (Java-W) Dual 1.0GHz chipset.
Both modes come with 1.3-inch screen size, 33mm in diameter. The Full color Always-on display has a 360 x 360 resolution. The screen is protected by Gorilla Glass SR+.
Both models come with 768MB RAM and internal storage of 4GB.
Media & Connectivity
Gear S3 supports connectivity to 3G/4G LTE internet connectivity, GPS, WiFi and Bluetooth.
Gear S3 is powered by 380mAh battery that lasts for 3 to 4 days.
The classic weighs 57 grams while the frontier weighs 62 grams.