Vivosmart 4 Black/Slate S/M

• Display Size: 6.6 MM X 17.7 MM
• Display Resolution: 48 X 128 Pixels
• Display Type: OLED
• Weight
• Small/Medium: 16.5 G
• Large: 17.1 G
• Touchscreen
• Lens Material: Polycarbonate
• Bezel Material: Aluminium
• Strap Material: Silicone
• Physical Size:
• Small/Medium: 15 X 10.5 X 197 MM
• Fits Wrists With A Circumference Of 122-188 MM
• Large: 15 X 10.5 X 223 MM
• Fits Wrists With A Circumference Of 148-215 MM
• Battery Life: Up To 7 Days (Excluding Pulse Ox Sleep Tracking)
• Water Rating: Swim
• Memory/History 7 Timed Activities, 14 Days Of Activity Tracking Data