What's included:
• Fitbit Inspire 1
• Classic wristband (both small & large)
• Charging cable
Memory
• Saves 7 days of detailed motion data, minute by minute
Materials
The Inspire 1 band is made of a premium, comfortable silicone (similar to that used in many sport watches) and fastens with a plastic buckle and tang.
Compatibility
Google account will be required.  See fitbit.com/devices.
The Fitbit app is compatible with most popular phones.  To set up and use your Fitbit products and services, you must install the Fitbit app on a compatible device.
• Syncing range: Up to 30ft
Water Resistance
Swimproof (water resistant to 50 meters).  After getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry.  Learn more.
Band Size
Print this guide to find the right size for you.  Both small and large sizes included in box.
Small
Fits wrist 5.5" - 7.1" in circumference
Large
Fits wrist 7.1" - 8.7" in circumference
Dimensions
1.55" l x .73" w x .46" h
Battery & Power
Battery life of up to 5 days.  Battery life and charge cycles vary with use, settings and other factors;  actual results will vary.  We recommend charging your tracker every few days to ensure you are always tracking.
• Battery type: Lithium-polymer
• Charge time (0-100%): Two hours
• Radio transceiver: Bluetooth®
Care
Give your wrist a rest by taking the band off every now and then.  If the band gets wet or you sweat in it, remove and completely dry the band before putting it back on.  Learn more.
Environmental Requirements
• Operating temperature: 14° to 113°F
• Maximum operating altitude: 28,000 ft