Haylou Solar (Haylou LS05) specs
Body: 45.3 x 11.4, 54g, 22mm. standard strap; IP68; Metal frame, metal button, plastic back
Display: 1.28" LCD, 240 x 240 pixels (no AOD watchface)
OS: Proprietary; Support for Android 4.4 and above, iOS 8.0 and above
Battery: 340mAh (30 days typical use, around 15 days with heart rate monitoring)
Connectivity: Bluetooth 5.0 + BLE
Misc: Ultra-low dynamic optical heart rate sensor, accelerometer