Garmin Edge 25 GPS Cycling Computer (Certified Refurbished) This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com COMPACT - Weighing only 25 g (0.9 oz.), Edge 20 and Edge 25 are the smallest cycling GPS computers in the world, making them perfect for travel GPS +GLONASS - Acquire satellites quickly to track how far, how fast and where you ride - even under tree cover. The Garmin Edge 20 and Edge 25 are the first in this size and price range to add GLONASS CONNECTED FEATURES - Edge 25 allows you to instantly share details of your ride with friends and family via social media by pairing a compatible device with Garmin Connect Mobile. Share your rides and training activities in real time with live tracking ANT+ COMPATIBLE - Pair Edge 25 with a heart rate monitor, cadence sensor and speed sensor to get the most out of your rides.