• Accuracy

        ±30 seconds per month (average)

      • Glass

        Sapphire glass

      • Supported OS

        iOS 9 or later, Android 5.0 or later

      • Display

        Flexible active-matrix electronic paper, gray scale

      • Band material

        Surface:Silicon, Back surface:Polyurethane elastomer

      • Case surface treatment

        Ion plating

      • Color

        Premium Black 1

      • Case material

        SUS316

      • Maximum patterns to store

        24

      • Internal battery

        Lithium-ion battery

      • Charging time

        Approx. 2.5 hours

      • Operation temperature

        5℃ to 35℃ (41°F to 95°F)

      • Bluetooth

        Version:Bluetooth Specification version 4.1 Low Energy complaint, Compatible profile:Sony original profile

      • Case diameter

        43 mm (1.7 in)

      • Made in

        JAPAN

      • Waterproof

        IPX5/IPX7(equivalent to JIS waterproof grade JIS C0920) Watch only

      • Continuous operation time

        Approx. 2 weeks 2

      • Band width

        23.5 mm (0.93 in)

      • Case thickness

        12 mm (0.47 in)

      • Mass

        75 g(2.64 oz)(watch) , 80 g(2.82 oz)(charging cradle) 3

    • FES Watch U(1), Charging cradle(1), Micro USB cable(1), Startup Guide(1), Reference Guide(1), Warranty(1) 4