Here are some suggestions for FW improvements
(for 615/625 or next HW) tah I have had for a while.
1. Suggestion: Remove "Activity" -> "Memory Capacity" menu item and replace the space with the capacity. One button less to press and you see it as you do other stuff like on the way to view your training. You will have two lines for the display, maybe even a "progress" bar can be showed
1.1. The menu item takes up the same space as the data, so why have to select it.
1.2. Usually I don't empty my watch after every run, sometimes it's been a while since I emptied it, sometimes I remember to check before I run but most of the time I don't. Usually I just hope my run will fit. But after every run I go into "Activity" -> "Activity Info" If i saw the "Memory Capacity" directly i in the "Activity" page before selecting "Activity Info" I will notice it and have it somewhat better monitored.
2. Display GPS variation, forerunner seem to have a feature where if you stand still it will tell you how much the GPS data variates like displaing +/- 12 m if you have GPS position "jumping" around inside a 24m radie.
3. Timezone, maybe the clock could warn (on startup?) if it is way out of my "selected timezone" and open the timezone selector on request? (I missed changing my timezone on my buisness trip.)
It might be hard to detect "near" timezones as timezone follow contry boarders and are not stright lines, meanaing that it will sometime work and sometimes not on near timezones. This will probably just making people angry when it didn't work so maybe it should not be implemented. Well the Idea is good but might require "timezone" border awareness -> bigger ROM -> less memory for data. Save this idea for the future when we have "big" memorys in the watches.... (and color 3D photo-maps and other cool features). But then it can autoselect timezone so you will never have to set it anyway.