A:AnswerI won't list all the differences but the 2 biggest differences are that the vivofit 2 has a twist lock on the band that holds it very securely, while the vivofit 1 has a push clip design that easily comes undone. Also the vivofit 2 has a backlit display which is absolutely necessary if you wear it at night (I wear mine all the time as a watch).
A:AnswerYes! I replaced my watch with the Vivofit 2. Much nicer than wearing both a watch and a fitness band. You can also customize which is on the main screen. I set mine to have the time on the main screen so it's just like a regular watch. Then I can push a button to scroll through the date, number of steps, number of steps left to reach the daily goal (or number of steps over the goal), miles walked, and calories burned. If preferred, you can instead choose to see any of the other info (like steps walked) on your main screen, then push the button to get to time and rest of info.
A:AnswerIt is rated by Garmin as "waster resistant to 5atm", which translates to the pressure equivalent of being submerged to around 165 feet. However it is not sufficient for scuba diving or other such activities. It is perfectly fine for wearing in the shower or swimming at normal depths in swimming pools and such. I rarely take mine off and routinely wear it in the shower, swimming in the pool, and have even worn it in the ocean on my recent beach vacation.
A:AnswerGreat question! You can replace the batteries yourself. You can expect the batteries in vívofit 2 to last for at least 12 months before they need to be changed. The vívofit 2 uses two standard user-replaceable CR1632 batteries. These can be purchased in most stores where watch batteries are sold. *CG
A:AnswerSince you're asking about chest size, I'm assuming you're referring to the Garmin Heart Rate Monitor Bundle. The Garmin Heart Rate Monitor strap is adjustable from 21'' to 29.5'' (533.4mm to 749.3mm). The length of the band varies from 120-175mm (small wrist circumference) to 152-210mm (large wrist circumference). (KS)
A:AnswerYes. The vívofit 2 can be set up and data synced, using either a compatible Windows or Mac computer, or a compatible Android or iPhone and the Garmin Connect mobile app.
To set up on your computer, you would need to install the Garmin Express application and sync the device. A tutorial video on pairing with your home computer can be viewed at the following link: http://www.youtube.com/v/Q5Cv_RO6q6s
Thank you. *CG
A:AnswerI never feel it vibrate. Don't think that is a feature. The audible alert is just a single quiet chirp. Easy to miss in a noisy environment and while noticeable in a quiet environment, isn't distracting to others.
A:AnswerYes, it has 2 replaceable CR1632 batteries that should last about a year. Not having to charge it every few days like other trackers is well worth buying the Vivofit 2. No taking it off to charge it then forgetting to put it back on.
A:AnswerAt this time the Kindle Fire is not compatible with Garmin Connect Mobile. You can verify which phones are compatible with the app here: http://support.garmin.com/support/searchSupport/case.faces?caseId=%7bbbfc9660-8f77-11e3-d5f4-000000000000%7d. You can use the vívofit 2 without a computer, this will cause limited functionality. You can find more information on this option here: http://support.garmin.com/support/searchSupport/simpleCase.htm?caseId={986298f0-7f2a-11e4-5293-000000000000}&kbName=garmin. ~QKO
A:AnswerYes, it is easy to pop the tracker out of one band and put in another. There is a variety of Vivofit 2 bands but make sure you are buying a Vivofit 2 band, it won't fit in a regular Vivofit band.
A:AnswerNo -- it can't see your feet. :-) This is unfortunate, but it appears to respond only to the movement of your wrist during activity. Not good for exercise on a treadmill or stationary bike either unless you are using hands for an activity also --- you could possibly work around this if you can walk on the treadmill or stationary bike without holding on and swinging your arms.