Vital stats

Heart to heart

Fitbit’s PurePulse heart-ratesensor technology tracks and stores bpm heart-rate readings at one-second intervals while you’re working out, or at five-second intervals at all other times

6.1m

The Blaze’s automatic, wireless syncing range

Seven

The number of days the Blaze will track your motion data for

240 x 180

The resolution of the 16-bit colour touchscreen display

42.3mm

The screen size, with a display width of 24.36mm

A plum job

The Blaze comes in three colours (black, blue, plum) and three sizes. Additional bands, such as leather or metal, can be bought as an extra if you don’t like the original elastomer band