9 Pro | 3.56 cm (1.4") | AMOLED | Display type Digital | Display resolution 454 x 454 pixels | Touchscreen Yes | Flash memory 64 GB | Band material Silicone | Band size One Size | Shape Round | Market positioning Smartwatch | Watch case size 47 mm | Watch case colour Black | Watch case material Titanium | Band colour Black | Heart rate monitor Yes | USB port Yes | Wi-Fi Yes | Battery type Built-in battery | Battery life (max) 432 h | Battery life 18 day(s) | Weight 78 g