Xperia Z5 :: GPS Sensitivity - Able To Get GPS Lock And Record For Entire Ride

I will often record a GPS track if I am flying in a plane and in a window seat.  My old phone (HTC Incredible 4G LTE and even older HTC Incredible) would be able to get a GPS lock and record for the entire ride.  Every now and then I may lose the signal.  On my most recently flight, I tried this phone at the same time and noticed that it loses lock much more often.  So overall, the sensitivity seems to be worse.  When looking at detailed info, it seems like the number of satellites and signal strength from each satellite is about the same when viewing side by side.  The Sony just requires a higher strengh to "lock".  I'd rather have a GPS lock with lower accuracy...