The Garmin Edge 840 Solar is an advanced GPS bike computer with solar‑charging to extend battery life, robust navigation features, performance metrics, and smart connectivity — built for road, gravel, and mountain cyclists.

Key Features

Solar‑charging via Power Glass™ for longer battery life

Turn‑by‑turn navigation with Garmin Cycle Maps

Performance training metrics (FTP, VO2 max, training load)

ClimbPro grade‑adjusted climb planner

Cycling safety features (incident detection, group messaging)

Compatible with speed/cadence and power sensors

Smart notifications & Garmin Connect™ compatibility

Specifications

Display: 3.5″ color touchscreen (280 × 466 pixels)

Battery Life: Up to ~48 h standard / up to ~60 h with solar assist

Connectivity: GPS, GLONASS, Galileo, Bluetooth, ANT+, Wi‑Fi

Sensors: Barometric altimeter, accelerometer, thermometer

Water Rating: IPX7

What’s in the Box

Garmin Edge 840 Solar bike computer

Mounts (standard and out‑front)

USB‑C charging/data cable

Documentation