3.81 cm (1.5") | AMOLED | Brightness 3000 cd/m² | Display type Digital | Display resolution 480 x 480 pixels | Touchscreen Yes | RAM capacity 64 MB | Flash memory 4 GB | Band material Silicone | Band size One Size | Shape Round | Market positioning Smartwatch | Watch case colour Black | Watch case material Aluminium,Plastic | Band colour Black | Heart rate monitor Yes | Near Field Communication (NFC) Yes | Bluetooth version 5.3 | Battery type Built-in battery | Battery technology Lithium Polymer (LiPo) | Battery capacity 658 mAh | Battery life 24 day(s) | Charging time 2 h