It can be great to have a stylus around when using your tablet or smartphone, but finding space for one in your pocket — or trying to find one in a bag — can be more hassle than it's worth. With a diminutive size and included tether, the Wacom Bamboo Stylus Mini ($15) should alleviate both problems. It features a small solid brass body wrapped in soft-touch rubber, a smooth rubber nib, and a built-in tether that attaches to your device's headphone jack. All you have to figure out is which of the six colors you like best.
Keep track of the conditions both inside and outdoors with the Netatmo Weather Station ($180). Designed exclusively for use with smartphones and tablets, this system includes sleek, separate cylindrical aluminum and white modules for outside and inside, which work together to measure the temperature, barometric pressure, humidity, and CO2 concentration, and communicate with a dedicated app over Wi-Fi. It's like having your own personal Weather Channel, only without the dorky hosts and elevator music.
You knew it was just a matter of time. So far, your smartphone has been able to do pretty much anything you ask of it — except tell you when you've had one too many to get behind the wheel. Thanks to the Breathometer ($20 and up), now you can. This keychain-friendly device plugs into the headphone port of your iPhone or Android device, and interacts with an app to give you an accurate measurement of your BAC. Shipments start this July.
You could carry around a huge array of stomp pedals from show to show, or you could carry one iStomp ($150). This simple box works just like a traditional stompbox, only the effects it provides come from your iPhone or iPad. Simply download and select the pedal you want from the Stomp Shop, then load it onto the iStomp — since you actually load it onto the pedal, you don't need to keep your device hooked up, and with true stereo inputs and outputs and four control knobs, you can get just the sound you're looking for. Use one by itself or string multiple boxes together for truly crazy effects.
Say hello to your iPhone's new best friend. The Mophie Juice Pack Helium ($80) doesn't just protect your iPhone 5 — it helps keep it charged, too. Thanks to an advanced 1500mAh, the Helium is the thinnest Juice Pack yet, coming in at 13% thinner than even prior Air models. Standard features like LED battery level indicators and a micro-USB charging port are carried over, as are battery pack benefits like up to six additional hours of talk time, six additional hours of browsing via LTE, and up to 30 extra hours of audio playback. Available in dark metallic and silver colorways.