The Jawbone UP24 was released back on the 10th April 2014 in Singapore and it currently retails for S$249. It comes in three sizes (Small, Medium and Large) and available in two colors (Onyx aka Black and Persimmon aka Red).
The Jawbone UP24 is an updated model of the original Jawbone UP which is still being sold for S$189.90.
The UP24 adds in wireless syncing via Bluetooth 4.0 LE which is missing from the original UP and it still manages to maintain the same weight; 19g (Small), 22g (Medium) and 23g (Large). Having used both the UP and UP24, I totally love the addition of this feature because it eliminates the hassle of removing the band just to sync.
Jawbone UP 24 – Packaging Front