ATOPIA (NOT ORIGINAL) Band 4-pack Large L Replacement Sleep Wristbands With Clasp for Fitbit Flex-Black/Slate/Teal/Red(Tracker not Included)

ERI is a newly design smart wristband for fitness: It can track your steps, calories, distance automatically. You can wear it to run, swim, cycle, climb. At night, it tracks your sleep quality and wakes you up silently in the morning. You can watch time, temperature, and how the goal you have achieved on the display. Even more, you can bring more features with ERI SDK
Motion Type Recognize Automatically: With DigiCare’s intelligent algorithm, ERI can recognize regular motion type automatically. When you are walking, running, swimming, cycling, climbing, sleeping, ERI will record the duration for each motion type and show on the App
Sync your stats, See your progress: ERI automatically sync your date to iOS devices and select Android phones without plugging in or pushing buttons. This gives you real-time access to your stats on the DigiCareMobile throughout the day

Tracks steps, distance, calories burned and avctive minutes
Monitor how long and well you sleep
Wakes you with a silent wake alarm

This clever activity monitor wristband will silently monitors and records your activities during weekdays and weekend
For you to view results or share achievemement on tablets and smartphones
Slim, unobtrusive design Sync your data wirelessly

Tracks steps, distance and calories burned
Monitor how long and well you sleep
Slim, comfortable and easy to wear (sold with wristband included)