Bluetooth keyboards for Android tablets

If you need a real keyboard to do real work, here are three excellent and affordable options

 Tablets give us new possibilities when it comes to mobile computing. Unfortunately, they also give us new things to pack when it comes to carry-on luggage.

The problem is simple: While a tablet is a great addition to any gadget-lover's arsenal, it isn't typically a replacement for an existing device. Most of us still need physical keyboards for long-form typing -- and with business travel in particular, that means you're lugging around both a tablet and a laptop.

3 Android keyboards

• Introduction
• Logitech Tablet Keyboard for Android 3.0+
• Motorola Wireless Keyboard
• Targus Bluetooth Wireless Keyboard for Tablets
• Bottom line

By adding a wireless keyboard to your tablet, though, you can transform it from a content-consuming slate into a far more versatile productivity machine. With the aid of a Bluetooth keyboard, I've been able to use my Motorola Xoom for all of my computing needs -- both work and personal -- while away from the office. The keyboard allows me to type desktop-style as needed; the rest of the time, I can use the tablet as a lightweight touch device.When it comes to keyboards, Android tablets do have a disadvantage: Because the tablets come in a variety of sizes and formats, keyboard manufacturers tend not to create the convenient combination keyboards/cases that are available for the iPad. However, there are still some really excellent options out there.

Here are three full-sized, universally compatible keyboards worth considering.

Logitech Tablet Keyboard for Android 3.0+ from Logitech

Price: $69.99 (direct); $54 - $92 (retail)

Dimensions: 5.6 x 1.2 x 12.3 in.

Weight: 1.6 lb.

Powered by: 4 AAA batteries

Pros: Spacious and responsive typing surface; integrated Android command keys; includes protective case and tablet stand

Cons: Most Android command keys aren't dedicated; occasional errors when typing quickly