Ok. I have removed both the flexible antennas from my X5 straps and have

Ok. I have removed both the flexible antennas from my X5 straps and have fit them inside the watch to see what bluetooth/wifi range is like. I lose signal at about 1 meter. I have ordered a strap and will experiment with some home made antennas and post results soon.

Yes it will work without antennas. I just fitted the metal strap with the Bluetooth/wifi antenna connected but the range is not good.
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where did you buy the metal band…?

can buy the metal band in e-bay size 22, you can buy rubber type also but search curve end bands.
i did experiment on mine also, you cannot put antenna inside the watch coz the metal cover of the watch will block the signal.

problem with metal strap, it also blocks the signal, so that is why they use leather as a band.

@Craig_Hancock ​ Can u link me where did u bought metal strap for x5 to fit ? I can find many straps but i am aware that this uper strap fitting will not fit to mine watch.i tryed already one 23mm but was to short…

@Craig_Hancock ​ can i get answer i am without mine watch for months ?