Is operated the scale of 4 supplied AAA batteries.
The corresponding app is designed very clearly. Only the Register (account creation with someone) would have the manufacturer can give. Additional information, such as body fat, BMI and Co, please, do not refer to the display of the scale only through the app. Bother me but less. The connection via Bluetooth with an Android device works just as perfectly as with an iPad Air 2 with me Creating two profiles worked for me. Unfortunately, the results of two persons are always transmitted on both devices. To keep secret is to say before the Partner nothing
The measurements are accurate. The BA 1400 and a conventional scale are identical (tested). Important naturally stands the scales just! Here I can so nothing negative to say!
Conclusion:
Except for the inconvenient, dark surface, a good, recommended body composition monitor with good app connectivity for Android and iOS!