SMARTBAND M4 adalah produk versi murah dari Xiaomi Mi Band 4 ( dengan harga terjangkau dapat fitur segudang xiaomi mi band 4 ) FITUR SMARTBAND M4 : 1. Calories Burned 2. Blood pressure 3. Oxygen Blood Rate 4. Heart Rate 5. Motion Tracker 6. Sleep Monitor 7. Total Steps 8. Distance Steps 9. App Notification vibrate (WA,FB,Call,SMS,dll) 10. Mode Don"t Distrube 11. Flip Watch On 12. Sedentary Reminder 13. Alarm Clock 14. Camera Bluetooth Pick 15. Smart Alarm 16. Find Device 17. Sports Assistance Spesifikasi smartband M4 : 1. Touchscreen Button 2. Chipset 3431Q, FLASH memory 16MB 3. Oled Screen 0.96 inch TFT IPS 160*80 resolution color screen 4. Compatible System: BT4.0, for Android 4.4 dan IOS 9.0 or above 5. Berat total About 20g 6. Reflective Photoelectric Sensor 7. Gravity Sensor 8. Built-in 135 mAh Lithium ion polimer battery 9. Input voltage DC 5.0V, Input Current 250 mA Max, Charging time about 20-40min, working time up to 7 days. ISI PAKET 1 x smartband M4 1 x tali band / strap 1 x Kabel Charger 1 x buku panduan bahasa inggris