Model: NK21

Strap material: Silicone strap

Bluetooth: Bluetooth5.0

Shell material: zinc alloy + plastic

Operation mode: multi-touch + physical buttons

Battery capacity: 220mAh

Color: black, gold, pink

Display: 1.72-inch square color screen, resolution 240*280

Charging method: Magnetic charging

Charging specifications: charging 1A or less than 1A

Charging time: 2 hours

Waterproof grade: IP67

Bracelet display language: Chinese, English, Russian, Spanish, Portuguese, French, Japanese

Bracelet push languages: English, German, French, Italian, Greek Latin, Spanish, Portuguese, Romanian, Polish, Russian, Ukrainian, Ruthenian, Belarusian, Bulgarian, Serbian, Macedonian, Croatian, Bosnian, Thai, Hindi, Sanskrit, Nepali, Cambodian, Vietnamese, Lao, Persian, Kurdish, Pashto, Punjabi, Turkic, Berber English, Malay, Turkish

Band APP languages: English, Arabic, Danish, German, Spanish, Finnish, French, Italian, Japanese, Korean, Dutch, Norwegian, Polish, Portuguese, Russian, Swedish, Thai, Ukrainian Chinese, Chinese, Traditional Chinese, Vietnamese

Compatible platform: IOS8.0 and Android 4.4 and above

Accessories: NK21 bracelet, manual, small connection card, packing box