Garmin Edge 840 Device Only Bike Computer Black

Garmin Edge 840 Cycling Computer

The Edge 840 is the GPS bike computer built for riders who want reliable navigation, structured training, and detailed ride data. It combines touchscreen and button controls, so you can choose whichever works best while riding.

What stands out:

Battery life: Up to 26 hours in normal use, or up to 42 hours with battery saver mode.

Navigation: Comes with detailed cycling maps, including road, gravel, and MTB trails (Trailforks data preloaded). Turn-by-turn directions, rerouting, and surface type info are included.

Training features: Daily suggested workouts, Garmin Coach plans, stamina insights, ClimbPro ascent data, and power guide (when paired with a compatible power meter).

Metrics: Tracks advanced cycling dynamics (L/R balance, power phase, rider position), MTB metrics (jump count, grit, flow), plus standard performance data like VO₂ max and training status (when paired with sensors).

Connectivity: Pairs with Bluetooth and ANT+ devices (power meters, HRMs, smart trainers, eBikes, and Garmin Varia lights/radar). It also supports LiveTrack, group messaging, smart notifications, and Connect IQ apps.

Safety: Features include incident detection, road hazard alerts (via Garmin Connect app), PIN-protected bike alarm, and compatibility with Garmin’s Varia radar/lights and inReach devices.

Practical details:

• Multi-band GNSS for improved GPS accuracy
• Waterproof, durable design
• Weight: ~84 g
• Works with both iOS and Android via Garmin Connect
• In the box: Edge 840 unit, mounts, charging cable, and documentation

Good to know:

• Works with Garmin HRMs, Favero Assioma power pedals, and most ANT+/Bluetooth sensors.
• Fully compatible with smart trainers like the Tacx NEO and with eBikes using ANT+ profiles.
• Clearest upgrade path if you’re moving up from an older Edge unit (like the 520, 530, or 830).