Will the Jawbone UP Fitness Trainer work with my iPhone 4 (not 4S)?
It would be okay if it would work using the usb cable to sync with my computer, but I’d prefer it if it would connect with my phone via bluetooth.
It looks like as long as you at least have iOS 6 on your phone, you should be good to go.
This version doesn’t use bluetooth. You have to pull off the cap on the end and plug it manually into your phone to tranfer your daily info.