Motorola W370

I'm having a hard time deciding which Tracfone phone to buy the V176 or the W370? The price is the same. I only need basic. I'm upgrading from my V160 because the reception on that one is very bad. I use the phone for emergencies and on the occassional vacation so that I can call home or be available in case of emergencies. The thing I'm most concerned about is according to the comparison on these phones, the battery talk time on the W370 is only 3.3 hours and on the V176 its 8.2 hours? If the W370 is newer, why such a huge difference?
Thanks in advance for any help or information you may be able to provide. This website has an amazing amount of information for which I am very appreciative!