This choice changes nothing about GPS accuracy or behaviour: it says where the phone will be while
recording — tucked away against you or on a mount —, and so what the screen costs in battery and
whether the map stays on screen.
In Handlebar mode the screen stays on while recording; it sleeps again during a stage and at stop.
There is no separate "Keep screen on" option any more: that is what Handlebar does. In Pocket mode
the screen goes dark after the phone's usual delay.
The app suggests the mode from the activity: Handlebar for bike, scooter, kart and quad when
training, and for sled and wheels in a sprint race (a single leg); Pocket everywhere else, and for
every long race — battery first. It then remembers your last choice for each activity, separately
for training and racing.
The figures themselves are the same in Pocket and Handlebar: they follow the activity. Bike,
scooter, kart and quad show speed as the big figure; canicross and cani-hiking, time and pace in
min/km; sled, kicksled, skijoring and pulka, time, with speed as a small figure in a race. Before
you leave, "Your figures" (the "How will you run it?" step) shows the run screen with sample values:
tap a box, then the figure you want, or a preset ("Default", "Speed first", "Timer first", "On
foot"). During the outing, press and hold a figure: the "This figure shows" sheet offers the others
as tiles, with their current value. Your choice is remembered for that activity, separately for
training and racing. The same sheet switches
between Pocket and Handlebar on the way — for a night section, for example.
In Pocket mode the map only shows on request ("Show map · 60 s") and closes by itself one minute
after it opened or after your last touch on it, so the screen doesn't keep drawing a map nobody is
looking at. In Handlebar mode the map stays on screen below the counters.
On either one, “Full screen” opens the map large so you can scroll it; it goes back to your figures by
itself after 30 seconds without a touch, and STOP isn't there, so a sliding finger never ends the outing.