Thread: Which devices/gadgets to have perfect GPS location in mobile phone?

Hi, I go a lot to mountain trails where cellular signal is low or lost, and GPS location stops or it becomes quite inaccurate. I specifically need all the photographs that I take with my cell phone to have accurate GPS location data.

What are some of the best lightweight gadgets/GPS boosters which I can carry in my backback and have it connected to my mobile phone, either wirelessly or through cable, to have constant accurate GPS location in my phone's photos?

And I am asuming that as consequence of having this device connected to my phone, my google map app would also have constant accuracy, which would also be an added bonus.

Thanks!