Eye-Fi
FITBIT ULTRA
The thumb-drive-size Ultra is designed to be your constant fitness companion. Clip it on and it counts the steps you take, tracks the hours you sleep and uploads a bevy of stats to Fitbit.com for your perusal. $99.95
JAWBONE JAMBOX
Since your phone can hold your entire music library, here's an easy way to turn it into a mini boom box. This tiny wireless speaker works with Bluetooth-equipped devices and doubles as a speakerphone. $199.99
SHURE SE115M+
In the Bluetooth era, this wired headset may look a tad retro. It's one less thing to recharge, though. And the sound-isolating earbuds do a magnificent job of blocking out everything except your music or phone call. $119.99
POWERBAG DELUXE BACKPACK
The more gizmos you've got, the greater the appeal of this bag. Its built-in battery lets you charge your tablet, phone and other devices--up to four at a time--without missing a step. $169.99
EYE-FI
These marvels of miniaturization are SD memory cards with built-in wi-fi. Plug one into your digital camera and you can zap photos wirelessly to your PC, phone or tablet--or straight to sites such as Facebook, YouTube and Flickr. $39.99 to $99.99
LOGITECH ULTRA-THIN KEYBOARD COVER
If thudding your fingertips against the iPad's glass screen isn't your idea of comfy typing, get this superportable wireless keyboard. It snaps on magnetically and runs for months on a charge. $99.99