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Epson ProSense 307 GPS Watch
Weight: 1.8 oz
The Epson 307 is part of Epson’s ProSense line-up. Falling in the middle of the pack, between simple and advanced, it may be the Goldilocks of the five ProSense options: it’s a minimal-profile watch with full functionality including: GPS tracking, sport-specific workout functions (including running, swimming, cycling and daily activities) and a wrist-based heart-rate monitor.
The 307 is intuitive and easier to set up than other smart watches. Still, after opening, spend some time with the manual.
It took about an hour and a half to fully charge the battery for this reviewer, and, once charged, it lasted three full days with two GPS workouts before needing another charge.
This watch is best for those focused on cross-training and workout-specific goals rather than geo-junkies. This watch is map-less and doesn’t connect to third-party trackers (though the app does once connected to a smartphone).
The best parts of this watch are that it is inexpensive for a full-function GPS watch (on sale right now for $200, down from $250), has long battery life, is small and lightweight, has accurate work-out tracking and features a stopwatch.
—Tim Nooney runs 60 miles per week, typically with a new piece of gear that Trail Runner makes him take along and review.