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Jamie Carter

Fitbit Flex
	When the lights are out a quick tap of the Flex (above left; HK$822.99, hk.mobilefun.com) lets it know you're about to attempt sleep. In the morning, fire up the free Fitbit app and the Flex will sync over Bluetooth to present a simple graph showing periods of restlessness and deep sleep. With data collected over a longer period, it calculates your daily average, though it's basic stuff. It's lightweight and comfortable and the sensor can be removed. It needs charging every three days.
Misfit Shine
	Though it has the most elegant wristband, Shine (top right; HK$998, store.apple.com/hk can also be attached to a button or worn around the neck. Pairing with a smartphone over Bluetooth, Shine goes into sleep mode when it's tapped, though the data recorded is rudimentary; it is primarily a pedometer. As well as weighing almost nothing, being waterproof and lasting for four months on its CR2032 watch battery, the Shine is the most discreet device.
Jawbone UP
	The Jawbone UP (above right; HK$1,099, jawbone.com) tells you how well you slept based on your movements, sensing the difference between light and deep sleep. Revealing more information than Flex, it's viewable in the UP's iOS or Android mobile apps. The data exchange between UP and smartphone is via the 3.5mm jack (Bluetooth would be much better). Battery life stretches to 10 days, which is a huge plus. UP can wake you up while you're in a light sleep cycle, too.
Jamie Carter (48hours@scmp.com)
 
 
 


Toybox: Sleep tracking wristbands record your nocturnal habits

Magazines

48 Hours

Tracking wristbands are normally used by athletes and dieters, but many now have a nocturnal dimension, measuring slight movements at night and revealing valuable data about sleep patterns


Tracking wristbands are normally used by athletes and dieters, but many now have a nocturnal dimension, measuring slight movements at night and revealing valuable data about sleep patterns.
