9 Pro | 3.81 cm (1.5") | AMOLED | Display type Digital | Display resolution 466 x 466 pixels | Touchscreen Yes | Flash memory 64 GB | Band material Silicone | Band size One Size | Shape Round | Market positioning Smartwatch | Watch case size 51 mm | Watch case colour Titanium | Watch case material Titanium | Band colour Grey | Heart rate monitor Yes | USB port Yes | Wi-Fi Yes | Battery type Built-in battery | Battery life (max) 744 h | Battery life 31 day(s) | Weight 99 g