Are you joking? I can't believe that anyone could ask such an incredibly vague question.
What is your budget?
For what do you what to use a handheld GPS?
A phone, really?
If you've already got a smartphone made within the past few years then the chances are that you could use a navigation app on that. If it wouldn't be suitable or you want something more specific then it would be useful if you could answer the questions stockhausen posed.
A phone, really?
In the absence of any more details it may be perfectly suitable, I wouldn't necessarily want to use it every day in place of a proper GPS system but for occasional use a smartphone can do a reasonable job or at least both my previous Nokia and current Motorola do.
It is the 21st century. A popular device known as a "mobile phone" is prevalent, many of which incorporate GPS antennas into the design.
Sure but I'm never going to trust a smartphone when I'm well off the beaten track. I assume that somebody asking for a handheld GPS is not going to just want to use the one in their phone.
^Mobile batteries last no time at all with GPS on
Sure but I'm never going to trust a smartphone when I'm well off the beaten track. I assume that somebody asking for a handheld GPS is not going to just want to use the one in their phone.