Amazfit - GTS 4 Mini smartwatch, multiple colors

Product description Amazfit GTS 4 Mini small compact smartwatch Alexa, 24-hour heart rate monitoring, blood oxygen monitoring, 5 satellite positioning systems, more than 120 sports modes, compatible with fitness tracker, sleep monitoring. Operating system compatible with Android and iOS. Water resistance rating 5 ATM, water-resistant up to 50 meters. Battery: 270 mAh, lithium polymer batteries, battery life 5 days. The watch body is lightweight at 31.2 grams. Blood oxygen measurement. Screen size: 1.65 inches