Fitbit Flex
Among wrist-worn activity trackers, the Fitbit Flex is the best and most competitively priced one you'll find. If you're not stuck on wearing a bracelet, though, the Flex's close cousin, the Fitbit One, is the obvious choice.
-- As reviewed by PCMag

Product details
- Rubber
- Made in USA or Imported
- One syncs automatically and wireless to tablets, computers and 150+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology. Syncing two computers requires Internet connection and USB port. Syncing to mobile devices requires Bluetooth and Internet connection. Syncing range: 20 feet. Call notifications via Bluetooth 4.0
- Water Resistance: Charge has been tested up to 1 ATM meaning it is sweat, rain and splash proof. However, the device is not swim proof. We also recommend taking charge off before showering because, as with any wearable device, it’s best for your skin if the band stays dry and clean
- Warning: Do not use if you have a pacemaker or other internal, or implanted medical device. Not intended for use by children under 13. Always consult your physician. Slippery when wet
- We recommend charging your device every few days to ensure you are always tracking. Charge time: One to two hours. Battery life: up to 7 - 10 days. Battery type: Lithium-polymer
- Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
PROS
+ Excellent battery life.
+ Accurate.
+ Comfortable, light, stylish.
+ Includes silent vibrating alarm.
+ Interchangeable bands available in several colors.
+ Bluetooth and NFC-enabled wireless syncing to smartphones.
+ Great Web experience.
CONS
- Limited display of information on device.
- No altimeter.
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Expert reviews and ratings
By PCMag on May 06, 2013
Among wrist-worn activity trackers, the Fitbit Flex is the best and most competitively priced one you'll find. If you're not stuck on wearing a bracelet, though, the Flex's close cousin, the Fitbit One, is the obvious choice.
80
By Tom's Guide on March 05, 2014
The Fitbit Flex offers activity and sleep tracking and a robust app ecosystem for a reasonable price.
70
By The Verge on May 06, 2013
Whipping you into shape one step at a time
80
By TrustedReviews on January 09, 2013
The Fitbit Flex was one of Fitbit’s more entry-level fitness trackers, but has since been superseded by the new
70