Key Features:

• Solar Charging: Utilizes solar energy to extend battery life in various modes, including smartwatch mode and expedition GPS mode. 
• Multi-LED Flashlight: Provides variable intensity and strobe settings, including a red safety light, to aid visibility in low-light conditions. 
• Tactical Features: Includes stealth mode, night vision compatibility, dual-position format GPS, a kill switch, and Jumpmaster mode. 
• Rugged Design: Built with a fiber-reinforced polymer case and a Power Glass lens for durability in challenging environments. 
• Large Display: Features a 1.1-inch diameter display for enhanced readability. 
• Extended Battery Life: Offers impressive battery life in various modes, with solar charging significantly extending usage times. 
• Built-in Sensors: Includes a 3-axis compass, barometric altimeter, and multi-GNSS support (GPS, GLONASS, Galileo). 
• Connectivity: Connects via Bluetooth and USB to compatible devices. 
• Water Resistance: Rated for water resistance. 
• Sport Modes: Supports a variety of sports and activities, including running, cycling, swimming, and more. 

Detailed Specifications:

• Case Size: 50mm.
• Lens Material: Power Glass.
• Bezel Material: Fiber-reinforced polymer.
• Case Material: Fiber-reinforced polymer.
• Memory: 64 MB.
• Display: 1.1-inch diameter, monochrome, sunlight-visible, transflective memory-in-pixel (MIP).
• Resolution: 176 x 176 pixels.
• Weight: 67 grams.
• Operating Temperature: -20º to 60ºC (from -4º to 140ºF).
• USB Charging Temperature: 0º to 45ºC (from 32º to 113ºF).
• Solar Charging Temperature: 0º to 60ºC (from 32º to 140ºF).
• Water Rating: 10 ATM. 

Used, but in good working condition.