Well, so much for the awesome deal that my $20 Ebay Garmin 305 was. It's dead. Or at least, well on its way to dying.
First of all, it has no battery life to speak of. If I take the fully charged unit on an eleven mile run, with no button-touching except to restart laps at the end of the warm-up and workout, then it's beeping "low battery" by mile 10. I haven't tried, but I could probably get 16 miles out of it. Just barely. Obviously, that's a problem with a 26 mile race coming up. I have already been thinking about replacing it due to battery life, and David advised me to buy a new one, since battery life was the most important thing I was looking for. 305s are so old that all of them available right now risk minimal battery life. But the new models - the 225 and 230 - have a lot of activity tracker features that I don't want, and don't have enough data fields for the run. The 630 costs more than I spend on my monthly rent, but the older versions - like the 620 - don't have the most recent connectivity.
But it must be replaced, so I have to make a decision - and soon.
Decisions, decisions! What's your recommendation? Keep in mind that - for someone who claims to never really use a Garmin - I insist on seven data fields (pace, average pace, lap pace, lap time, lap distance, time, distance). And hopefully time of day, too. That's the minimum to do races, intervals, and regular running without having to change data fields!