WATERFI WATERPROOFING Completely waterproof down to 210 feet underwater, the Waterproofed Fitbit Flex has been waterproofed on the inside through our durable and long lasting waterproofing process so you can fully submerge your Fitbit Flex and go wherever your active life takes you.
Learn more about Our Process. READY TO DIVE IN No longer limited to accidental splashes, the Waterproofed Fitbit Charge HR is ready to motivate you through your next swim, water adventure, or sweat filled workout.
Waterproof down to 210 feet underwater (IPX8 compliant) Track heart rate, steps taken, calories burned, hours slept and call notifications via Bluetooth Low Energy Rechargeable battery life of 5 days 1 year warranty fulfilled by Waterfi Please Note: To completely waterproof the Charge HR and maintain the most accurate readings, the ability to count floors climbed through the altimeter has been removed.