Visually, UP24 is almost identical to the original UP, which has both advantages and disadvantages. The activity tracker is housed inside a permanently curved, rubber-coated band that is available in two colors and three sizes. Cleverly, the packaging has a segment that folds out, with a hole the size of the band, so that you can slide your wrist through to ensure the right fit. Jawbone has always shown a penchant for textures, and UP24 is no different,…
