" http://www.amazon.com/gp/product/B00HWL9BQ4?tag=httpbabyand07-20<br />Sunlight-Readable 26 color display<br />Expanded Internal Memory 8GB<br />DUAL BATTERY SYSTEM Use with 2 traditional AA batteries or the optional rechargeable NiMH battery pack that can be charged while inside the device<br />Receive Smart Notifications and pair with optional ANT sensors such as heart rate monitor Tempe temperature sensor speedcadence or use to control your VIRB action camera 64s64st only<br />Wirelessly upload data to Garmin Connect and view on smartphone plus share activities as they happen with Live Track 64s64st only <br />Garmin GPSMAP 64st TOPO U.S. 100K with High-Sensitivity GPS and GLONASS Receiver"
