Mini Map is a tiny app, which uses GPS to continuously display where you are. It's completely free, which means no limitations and no hidden subscription fees! No companion app required. ANDROID ONLY*

Works great on bike and on foot and is very efficient, so both your phone's and your Pebble's battery gets drained as little as possible.

Map tiles are generously provided for free by CartoDB (cartodb.com) and Stamen Design (stamen.com). The tiles are downloaded as needed, which means you need an internet connection to use this app.

Controls:
UP - zoom in
SELECT - refresh
DOWN - zoom out

*unfortunately, iOS host doesn't provide HTML5 Canvas, which is used for rendering the map without a companion app

Why no colors? I don't have a color Pebble. If you can get me a Pebble Time (round), I'll develop a color version for free ;)