Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: What is the difference between the FitBit Zip wireless Activity Tracker and the more expensive models ($150.00)
Document: I love it more than my Fitbit One, which I lost. The difference is that you need to replace the batteries. And the Zip doesn't track sleep. I didn't track my sleep when I had the One...
This is my 2nd FitBit Zip I lost my first one. I just love it. It is durable and keep track of my activity and calories. I would highly recommend this product.
Just couldn't learn to love them. I finally broke down and purchased a FitBit Zip several months ago and I couldn't be happier.Setup:  A snap. You can easily go to the main website and download the web based version of their app, which is nice to get a bigger (or easier) view of your day's activity.
I've tried all kinds of activity trackers -- from simple step counters to the Weight Watchers tracker. This is, by a mile, the very best. It stays put; you don't even know you're wearing it. It syncs seamlessly and effortlessly to your iPhone or computer -- you do nothing but be in proximity to your devices. It can be easily adapted to the kind of exercise you do -- and anyone can do it. You don't have to be a computer nerd to use this.
Unfortunately, this product is not compatible with Windows 8; therefore, I had to return it. I loved the color and I do think the product is a great way to focus on maintaining activity throughout the day. I intend to order the updated version of the fitbit.
I had heard some of my friends talk about their Fitbit and I became intrigued. I did some research of my own and decided to purchase it. I am very pleased and it coincides well with my fitness regime. I would definitely recommend this device to all who are keeping track of their fitness or weight loss activity. This is a must have!
The FitBit met & exceeding my expectations! I love that I can see my progress on my smartphone anytime I want and that each week I get a progress report of my total activity. It will even track your water consumption for you - but that you have to enter each time you drink some. I definitely would recommend this to anyone that's active & wants to monitor their activity.
I like a lot of things about this little pedometer. It has a long battery life, it is easy to clip onto my clothes and seems to work well as a tracking device. But it has one big frustration -- it often fails to report my steps to the fitbit site that keeps track of my activities over time -- even when the device itself has the activity recorded. This is annoying and makes the whole tracking project less motivating. I changed the battery -- didn't help.
So no more fitbit zip.
This is easy to set up, fun to use and has made a big difference in the amount of walking I do.
Answer: yes