Pace Hare

Garmin Edge 550

It weighs 110 g with a 2.7 in colour screen and physical buttons. You get 12 h in demanding use, no touchscreen and half the Edge 850's storage at 32 GB.

Gym and cycling

What the maker states

Battery12 h, Demanding use; 36 h in battery saver mode
Weight110 g
Water ratingIPX7
DisplayColour, buttons only, 2.7 in, 420 x 600
Satellite systemsGPS, GLONASS, Galileo, multi-band
External sensorsANT+, Bluetooth
Training metricsVO2 Max, Training Status, Training Load, FTP, real-time stamina
AppGarmin Connect

Against other bike computers

Battery, in hours

Where this came from