Pebble developed one of the first smartwatches, based on e-ink technology that meant the watch could be always on and run for days on a recharge. The Pebble Time Steel was the pinnacle of their development, a classy, durable and functional watch, before Pebble was sold to Fitbit and discontinued.

This watch is in good condition, with some light scuff marks. Everything works well and the battery lasts for 3 days or more on a charge. Works with iOS and Android. 

Note that Pebble is discontinued, however there is an active community at rebble.io who maintain web services to continue to run the app store and functionality. The iOS pebble app is no longer available, but there are workarounds to side-load it. 

Release date: 2015
Watch Operating System: Pebble OS
Compatible with: Android 4.3 and later, iOS 8 and later
Sensors: Accelerometer, Compass, Light Sensor
Connectivity: Bluetooth
Microphone: Yes
Vibration: Yes
Display: 64 Colour e-Paper
Case: Stainless Steel
Case Size: 38mm
Band: 22mm Gold Coloured Staninless Steel
Water Resistance: 30M

Kickstarter Backer is engraved on the back.

Comes with magnetic USB charging cable.