Product Comparison: Fitbit Flex vs Fitbit One

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Fitbit Flex Wireless Activity + Sleep Wristband
Fitbit Flex Wireless Activity + Sleep Wristband
Fitbit One Wireless Activity
Fitbit One Wireless Activity
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Brand Fitbit Fitbit
Model Flex One
Origin USA China
About the product Make fitness a lifestyle with Fitbit Flex—a slim, stylish device that tracks all-day activity like steps, distance, calories burned and active minutes. See how every day stacks up with LEDs that light up like a scoreboard as you get closer to your goal. Then wear it at night to measure your sleep quality and wake with a silent, vibrating alarm. Day or night, Flex fits comfortably around your wrist, is water-resistant, and has a 5-day battery life. It also syncs to computers and 150+ leading smartphones, so you can access your stats anywhere and see your progress in charts and graphs. Fitness means being active, sleeping well, and eating smarter – and the Fitbit One helps you do all three.
Type Wristband Clip
Color Black (also available in 7 colors) Black
Battery life 5 days 10 days
Weight Smal: 0.47, Large: 0.51 oz. 0.3 oz.
Size(s) Smal: 5.5 – 6.9, Large: 6.3 – 8.2 in. -
Material Rubber Thermoplastic, silicone
Package Charging cable, wireless sync dongle, 1 small and 1 large wristband, flex tracker Silicone clip, Charging cable, Wireless sync dongle, Sleep wristband
OS compatibility Mac, iOS, Android, Windows Windows Vista and later, Mac OS X 10.6 and up, iOS, Android, Windows
Protection Waterproof Rain, splash and sweat-resistant
Bluetooth 4.0 4.0
Display No OLED
Distance covered Yes Yes
Calories burned monitoring Yes Yes
Sleep quality tracking Yes Yes
Step counting Yes Yes
Alarm signals Yes Yes
Certifications FCC, CE CE
Manufacturer warranty 1 year(s) 1 year(s)
Product manuals
Manufacturer link
Overstock 4.2 -
Ebay 5 -
Features - Saves daily totals for past 23 days
Altimeter - Yes
Vibration motor - Yes
Accelerometer - Yes
Product benefits - Small, comfortable clip fits securely onto clothing so you can wear your tracker during every occasion.
Control - Button
MSRP - 99.95 $
Walmart - 4.6
Amazon - 4.3

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