Activity tracker for One X 4.2.2

[Tisg]

Hello,
I'm trying to find an activity tracker band that'll work with my wife's HTC One X. All of the trackers I'm seeing on Amazon are compatible with Android 4.3 for syncing purposes, so will they really not work with the One X Android 4.2?
Does anyone have an activity tracker band that has worked with their phone?
Thank you for any help you can provide.

 

[unilizer]

I've updated my One X to a Android 4.4.4 ROM (SlimRom 9.0) to get support for Bluetooth Low Energy. The One X has bluetooth 4.0 but Android support it only from 4.3. ROM works good, but sometimes I've got to restart (not that much, once every month, do not really keep track of it) my phone for the Bluetooth (not for syncing problems, but for the notifications), but until I buy a new phone this is a good solution for me.