The battery life is fine, but running both the music and using the satellite GPS will eat it up

Intuitive and easy to use, the battery life is also a high point, as it usually lasts 3-4 days (depending on the amount of activities you record)

The battery life on the Tom Tom can be good for a week - especially since I only turn on GPS / Bluetooth when I go for a run.3

So the Spark is newest, adition features but the battery life is very poor

This makes it so I do not have to.-Music is smooth and does not skip or jump.-Heart rate is accurate-Display is easy to read and can be customized.-Battery life is good.

The charger is fine and the battery life is pretty good

Battery life is a little dismal, though.

LolThe only complaint is that the battery life isn't as good as some of the other watches he's had.

Battery life is terrible had to charge every day

Battery life is good, I only charge it once in a week

Also, the battery life is actually about right - 6 hours with music and workout use at the same time

Battery life excellent, highly recommend for runners

Battery life excellent, highly recommend for runners

Battery life on this watch is great

Battery life is great, I use it all day with a few exercise sessions and still 40% battery left or better.

Good general fitness watch, but battery life in GPS mode is lacking

however the battery life is crap

this is great, got it for xmas, first time bluetooth connection was tough due to all the other bluetooth devices in my home, battery life is good, computer portal and app are easy to use

Great product but the battery life is not to impressive.

If you go online or on your phone to the "app" for it, it charts your heart rate on a graph throughout the day as well as during workouts

Occasionally it doesn't get the connection as quick as you would like when you are running - not sure why

When the second version was just as noisy as the first I returned it and exchanged it for a Garmin -- which is silent