The item Watch 4 - RW-34 with 3 pairs strap mentioned appears to be a smartwatch. Here's a breakdown of its features:

3 Different Model Straps: This suggests that the smartwatch comes with three interchangeable straps, allowing users to customize the look of their watch to suit different occasions or preferences.
Bluetooth Calling: This feature enables the smartwatch to make and receive phone calls directly via Bluetooth connection to a smartphone. It typically includes a built-in microphone and speaker for this purpose.
Large Size AMOLED Display: AMOLED (Active-Matrix Organic Light-Emitting Diode) displays are known for their vibrant colors, deep blacks, and high contrast ratios. A large size display would imply better visibility and more space for displaying information.
Wireless Charging: This allows the smartwatch to be charged without the need for plugging in a cable. Instead, the watch is placed on a wireless charging pad.