The top of the grey wristband had a green hourglass underneath the dial, and the top of the dial was black. The outer band was black with green arrows, and the sides of the dial and the ends of the wristband were silver. The rim of the dial was white, the squares on the last upgrade were replaced by green arrows, and the area behind the hourglass and the wristband both became grey. The Omnitrix got rebooted in Innervasion Part 5: High Override. There was an additional band of dark grey running around the center of the Omnitrix, the activation button was on this strip. The four buttons on the faceplate were replaced with grey squares. The white chords and dial were silver and green. The Omnitrix was upgraded by Ben using Upgrade in Omni-Tricked: Part 4. It was supposed to control the temporary malfunction on switching from alien to alien. In Omni-Tricked: Part 3, Phil put on a blue device on the outer side of the Omnitrix.
When Ben selects his aliens, it shows the alien's silhouette. The Omnitrix looks like a very big wristwatch, primarily black and grey in color, with a grey dial in the middle (like a watch face) which has a green hourglass shape.