Most serious cyclists use some sort of GPS or bike computer to monitor their riding metrics and if you're looking to do the same and add a touch of color to your cockpit, check out the Mega XL Limited Holiday Edition GPS Bike Computer from Lezyne. Boasting a large 2. 7-inch, 200x400 high-resolution screen that allows for vertical or horizontal viewing, you can monitor real-time ride stats, receive incoming texts, calls, and notifications from your smartphone, and get turn-by-turn navigation, letting you stay connected while tracking ride information. Perhaps the most impressive feature is its battery life that Lezyne claims can run for a very impressive 48 hours. The Mega XL can simultaneously pair with Bluetooth Smart or ANT+ enabled power meters, heart rate monitors, and speed or cadence sensors, showing you real-time stats such as calories burned, elevation, barometer, accelerometer, laps and lap averages, and grade of your ride. The free Ally V2 smartphone app also allows you to receive incoming texts, phone calls, and message app notifications to keep you connected to society, even if you're off on an all-day ride in the mountains. The GPS/Glonass system gives you turn-by-turn navigation, offline maps and re-routing, and custom route building to help your ride stay on track from start to finish. It operates through an intuitive four-button operation to keep you focused on the road ahead, while the battery life indicator shows you how much power is left in both your Mega XL and the paired device you are using it with. Speaking of the battery, this GPS computer uses a lithium-polymer battery that is able to run for a whopping 48 hours straight and charges up easily with an included micro USB charging cable. An extremely weather-resistant construction keeps things operating smoothly when you get caught in a passing rainstorm, and the included X-Lock mount ensures a secure, stable ride over bumpy, uneven roads and trails. The Mega XL can easily be connected to...