GPS running watch with wrist based heart rate and display type is sunlight visible, transflective memory in pixel (MIP)
Customize your watch and your training, larger screen a 44 percentage larger screen than the 225 but the same physical size
Audio Prompts: Receive Audio Prompts from your connected smartphone that include laps and lap times. Smartwatch mode: Up to 9 days. Gps mode: Up to 11 hours
Smart notifications: See incoming email, text messages, call alerts, calendar reminders and more from your compatible smartphone. Display size: 1.23 inch diameter
Battery life 11 hours training, 9 days watch, activity tracking, notifications plus heart rate. Refer user manual below