• Brand Name: Valdus
• Feature: Touch Screen, IP67 waterproof
• Operation System: ANDROID
• Band Material: GENUINE LEATHER
• Case Material: ALLOY
• Function: Fitness Tracker, Heart Rate Tracker
• App name: HEY BAND
• Name: N109 Bracelet Smart Heart Rate Monitor
• Chipset: NRF52832
• Memory: 64K(Flash 512K)
• Battery capacity: 60 mAh
• The battery type: Polymer lithium battery
• Waterproof: IP67
• Sensor: G-sensor
• Compatible with the system: For Android 4.4 +& iOS 8.0+