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I don't think it will be. There seems to be a specific issue with the Huawei "Lite" phones that prevents fitbits working with them. Fitbit say:
"Due to Bluetooth issues that prevent Huawei Lite models, including P8 and P9 Lite, from syncing with some devices, like Fitbit devices, our products are not compatible with these mobile phones."
Taken from: https://help.fitbit.com/articles/en_US/Help_article/2315/?q=p8