Best Trackballs, Xah Pick

Nulea M505

• Nulea M505 Trackball

• Cheap, Excellent quality.
• Wireless.
• 5 buttons. Scroll wheel can be pressed.
• Adjustable speed.
• Buttons are light, great. Scroll wheel feels good, doesn't make scratchy noise.

Slimblade

• Slimblade Trackball

• Most ergonomic.
• No physical scroll wheel.
• Twist ball to scroll (you can just swipe finger on the rim). This is also a bad point, because you cannot scroll and move cursor at the same time, sometimes required in some 3D apps.

L-Trac

• L-Trac

• Highest quality built.
• Real bearings. Roller bearing.
• Expensive.
• Wired.
• The scroll wheel need some reach.
• Only 3 buttons sans buying extension.

Kensington Orbit Trackball with Scroll Ring

• Kensington Orbit + Ring

For a basic, 2 buttons, trackball, this one is best.

This one is well-loved. Medium sized ball, only 2 buttons, low price, and its scroll ring is best among ALL trackballs.

GameBall

• GameBall

• Highest quality build.
• Best sensitivity.
• Designed to play video games, e.g. First person shooter.

Logitech M575

• Logitech M575 Trackball

• Excellent.
• Extremely smooth roll.
• Scroll wheel makes annoying scratching noise.
• Battery lasts like forever.

Logitech MX Ergo

• Logitech MX Ergo

• Bluetooth and USB wireless.
• Rechargeable. Just plug it in.
• Fast recharge. 1 min = whole day use.
• scroll wheel can tilt left/right
• Base can tilt 20 degrees for comfort.

Bad point: many claim the battery wear out fast, and button may develope double click, and for some people the thumb operated ball creats thumb problems.

Kensington Expert Mouse

• Kensington Expert Mouse

• 4 buttons. great.
• Scroll ring makes annoying scratchy noise.

Elecom HUGE Trackball

• Elecom HUGE

• Bluetooth and USB wireless.
• 5 standard buttons. Plus 3 extra programable function (need the driver software, available for Windows and Mac)
• Scroll wheel can tilt left/right, as 2 extra buttons.
• Adjustable speed.
• The ball spins better than all other big ball trackballs.

• Some say sticky issue with ball when need pixel precision.
• Some say not comfy.
• I don't like side buttons, because that require effort to press.