This watch phone will only work with GSM networks: GSM 850/900/1800/1900MHz Unlocked for Worldwide use. Please ensure local area network is compatible. click here for Network Frequency of your country. Please check with your carrier/provider before purchasing this item.

Main Features: 
Phone book, message sync
With independent SIM card slot to achieve phone functions, the smart watch can sync your contacts and message
1.2 inch touch screen 
1.2 inch IPS touch screen, very hard and anti-scratch, the combination of high quality and fashion
Sleep monitor
Can Effectively monitor your sleep quality, including your sleep times and sleeping depth, which helps you to develop a healthy lifestyle
Pedometer
The smart watch can record your steps, distance and calorie consumption to get enough exercise at the same time to avoid overexertion
Sedentary reminder
Prolonged sitting is a common problem for office worker groups. Wearing this smart watch, it can be set a period time to remind you to take a break for relaxing your body
Heart Rate Monitor
G4 is a smartwatch can accurately test your heart rate and closely take care of your body condition
Card type: One Micro card slot