|The Charge 2 sports "a new, sleek look and an easy-to-read display that is four times larger than its predecessor", with its continuous heart rate tracking designed to deliver a picture of overall health.|
It provides a snapshot of cardio fitness level, creating a personalised cardio fitness level and score, based on estimated VO2 Max, calculated using user profile, heart rate and exercise data.
Meanwhile, Relax personalised deep-breathing sessions offer "a relaxing mindfulness experience that calms your body and mind", with beat-to-beat changes in heart rate determining personalised breathing rate.
Users can track specific workouts and get post-exercise summaries, with the Charge 2 linking up with a smartphone's GPS, providing stats such as running pace and distance. Advanced sensors are designed to capture all-day activity and sleep, while SmartTrack automatic exercise recognition records everyday activities such as walking, running and elliptical.
The "ultra-slim, swim-proof" Flex 2, meanwhile, measures in at 30 per cent smaller than the Flex, featuring a removable tracker, interchangeable bands in seven colours, and is available with a variety of Fitbit-designed bracelets and pendants.
Water resistant up to 50 metres, it is Fitbit's first swim-proof wristband, and automatically tracks pool swims, including laps, duration and calories burned, in the Fitbit app.
SmartTrack provides automatic exercise tracking, while an LED display employs colour-coded lights to show progress towards daily goals, keeping users connected with call and text notifications.
Fitbit has also brought new features to the Blaze, including extended smartphone notifications, reminders to move and new clock faces, and has unveiled new designs, including a Special Edition Gold series, for its Blaze and Alta, along with accessory options, having partnered with a number of fashion designers and brands.
Fitbit Adventures, a new series of personal, non-competitive activity challenges, meanwhile, has also been introduced, available in the Fitbit app.
"Fitbit Adventures are the perfect motivation for anyone who may not want to compete in a traditional Fitbit group challenge with friends or family," Tim Roberts, Fitbit executive vice president, interactive, commented.
"These new challenges inspire you to move more through virtual explorations of some of the most captivating environments in the world - places you might not be able to visit otherwise - all powered by your daily step activity."
The Charge 2 is available now from retailers including Harvey Norman, JB Hi-Fi, Officeworks and Rebel Sport, with the Flex 2 available for presale today, with it to be available in October at local retailers, with further information here.
The Charge 2 is priced at $249.95 with a fitness band in black, blue, plum or teal, with classic fitness accessory bands in four colours sold separately ($49.95), and Luxe premium leather accessory bands in blush pink, brown and indigo ($119.95), with a special edition series in gunmetal and rose gold coming soon ($289.95).
The Flex 2 is priced at $149.95 with a classic fitness band in black, lavender, magenta or navy, with a classic 3-pack fitness accessory band with hues in pink (blush pink, lavender and magenta) and sport (grey, navy and yellow) coming soon ($49.95), bangle accessory in gold, rose gold ($169.95) and silver stainless steel ($149.95), and a pendant accessory in gold ($169.95) and silver stainless steel ($129.95).