41mm, Starlight, Bluetooth Great, working condition with 8 watch faces, over 30 watch bands, and a usb-c fast charger. band brands include: apple, otterbox, Disney, etc. Wifi/Bluetooth Works with iOs/iPhone only. There are a few minor scratches around the edge but it's in great, working condition. Works over wifi/blutooth, no cellular plan needed for it to function. Has fall detection, water resistant, activity/health functions, walkie talkie & you can make calls and send/receive text messages on it.