Curious: What are these contacts in back panel of 730?

[TranquilKnight]

What are these contact pads on Lumia 730 back??

 

[TranquilKnight]

That strip is antenna I know...but for what??

 

[Fred Wilson2]

You want to know what the antenna is for ??
It's for the GSM radio, the "phone" itself.



Fred

 

[Etios]

Those contacts on top of Lumia 730 are NFC antenna, the Lumia 735 has two contacts: one at the top for NFC and one at the bottom for QI wireless charging.

Check out the Lumia 735 pic with two contacts:

 

[TranquilKnight]

Thanks everyone!