Looking to crawl around a quarry, climb Mount Everest, or weave your way though the jungle? Here's a phone that's ready to tag along. The rugged, ready-for-anything Nextel Motorola i355 may be bulky and heavy, but it won't have any trouble surviving the elements. This GPS-enabled handset boasts Nextel's Direct Connect and Group Connect functionality, a decent color screen, and a speakerphone, plus a rubberized plastic shell that resists rain, dust, and heat--and even survives drops onto a hard surface.

The Nextel Motorola i355 is big, black, and hefty. At 5.1 by 2.4 by 1.3 inches and tipping the scales at 6.8 ounces, this candy bar-style handset is no lightweight. Protected in Batman-style rubberized black plastic, the i355 would look right at home hooked on to the dark knight's utility belt. Nextel claims that the i355 conforms to Military Standard 810 F for "dust, shock, vibration, temperature extremes, low pressure, and solar radiation"--just a little over the top, mind you, but plausible from what we've seen.

While we didn't stick the i355 in the oven or toss it off a cliff, we did drop it multiple times onto a tile floor from a distance of about 3 feet (not even a scratch) and held it under our showerhead (no sparks, no shorted-out keys, no problem). No, you certainly can't fit the stocky i355 in a jeans pocket, but if you're working at a dusty construction site and you have a tool belt, this is the phone for you.