Garmin just gussied up its Forerunner 305, turning it into the updated, waterproof Garmin 310XT. The new multi-sport GPS watch is now waterproof down to 50 meters, so you can wear this bad boy swimming, or even diving. While still rather clunky like its Forerunner 305 forebear, it's more versatile, letting you move it quickly from wrist to bike handlebar mount with its quick release mechanism.
More good news is that Garmin has finally included an improved soft-strap heart monitor that's considerably more comfortable than its too-rigid monitor straps, catching up with rival Polar's soft straps released a few years ago. Garmin also added another welcome feature, longer battery life — with this 310XT holding out for 20 hours before it needs to hit the charger. Nice feature set for $350, available this summer.
Garmin also updated its already-excellent and exquisitely streamlined Forerunner 405, which we favorably reviewed here, rolling out the new 405CX (pictured above) that's now clever enough to calculate your caloric expenditure according to your heart rate. Smart stuff, available by the end of June for $370.