The Garmin Edge 840 Bundle is a GPS cycling computer with a 3.5-inch color screen and advanced cycling features. The bundle also includes an HRM-Dual™ heart rate monitor, a speed and cadence sensor 2 and an Aero stem. 
 Main features:
 - GPS cycle computer with 3.5 inch color screen
-  Preloaded maps of Europe
-  Turn-by-turn navigation
-  Personalized workouts
-  Performance analysis
-  Connectivity with smartphones and external sensors
-  HRM-Dual™ heart rate monitor
-  Speed and cadence sensor 2
-  Aero stem
 
-  Compatible with battery charging while cycling (Power Mount bracket and Garmin Charge Power pack).
-  Dimensions: 57.8 x 85.1 x 19.6 mm (2.3″ x 3.4″ x 0.8″).
-  Touch screen.
-  Color screen.
-  Screen size, WxH: 2.6″ (66 mm) diagonal.
-  Screen resolution, WxH: 246 x 322 pixels.
-  Weight: 84.8 g
-  Waterproof: IPX7.
-  Battery: Rechargeable lithium ion.
-  Battery life: Up to 26 hours.
-  Battery saving mode.
-  Additional cartography.
-  Worldwide Basemap: Preloaded Garmin cycle map.
-  Storage and power capacity: 32GB.
-  Memorable positions: 200.
-  Memorable routes: 100 routes.
-  History: up to 200 hours.
 In the box:
-  cycle computer.
-  HRM Dual heart rate monitor.
-  Speed and cadence sensor.
- Brackets (standard and front).
-  USB cable.
-  Safety lanyard.
-  Documentation.