7.9 x 0.8 x 0.1 inches ; 0.64 ounces

Make sure this fits by entering your model number. Two Adjustable Sizes: Large is for 6.7"-8.1" wrist, small is for 5.5"- 6.7" wrist. Soft Material: These bands for Fitbit Charge 2 HR are made from flexible elastomer, waterproof and sweatproof.