<br /> <b>Moto 360 2nd Generation:</b> <ul> <li>Sized for you: <ul> <li>Men's: 42mm case ? Requires a 20mm band</li> <li>Men's: 46mm case ? Requires a 22mm band</li> <li>Women's: 42mm case ? Requires a 16mm band</li> </ul></li> <li>Works with Android and Apple iPhone (Requires a phone running Android 4.3+ or iPhone 5/5c/5s/6/6 Plus with iOS 8.2+. Features may vary between Android and iOS platforms.)</li> <li>Battery life: Men's 42mm and Women's: 300mAh battery ? up to 1.5 days of mixed use with Ambient off; up to a full day of mixed use with Ambient on</li> <li>Wireless charging with included charging dock</li> <li>Ambient light sensor: the screen automatically adjusts to the surrounding brightness</li> <li>Optical heart rate monitor (PPG)</li> <li>IP67 dust- and water-resistant (IP67 ? Withstands immersion in up to 3' of fresh water for up to 30 minutes. Not designed to work while submerged. Do not use while swimming or subject it to pressurized streams of water. Avoid exposure of leather band to water. Not dust-proof.)</li> <li>WiFi connectivity: Stay in touch, even if your phone is beyond Bluetooth range</li> <li>Display: Corning Gorilla Glass 3; backlit LCD; Men's 42mm and Women's: 1.37&quot; (35mm), 263ppi (360 x 325); Men's 46mm: 1.56&quot; (40mm), 233ppi (360 x 330)</li> <li>Watch case dimensions: Men's: 46mm diameter by 11.4mm high; 42mm diameter by 11.4mm high; Women's: 42mm diameter by 11.4mm high</li> <li>Processor: Qualcomm Snapdragon 400 with 1.2GHz quad-core CPU (APQ 8026); Adreno 305 with 450MHz GPU</li> <li>Sensors: accelerometer, ambient light sensor, gyroscope, vibration/haptics engine</li> <li>Memory: 4GB internal storage; 512MB RAM</li> <li>Connectivity: Bluetooth 4.0 Low Energy; WiFi 802.11b/g</li> <li>Dual digital mics</li> </ul>