Form factor: Rectangle, Product colour: Black, Band colour: Black. Display type: PMOLED, Display diagonal: 1.88 cm (0.74"), Display resolution: 128 x 64 pixels. Connectivity technology: Wireless. Battery life: 7 day(s), Battery capacity: 70 mAh. Weight: 15 g, Width: 16 mm, Depth: 40.2 mm