The Super Simple Secret to Fixing Wonky GPS Problems on Your Samsung Galaxy S3 « Samsung :: Gadget Hacks
Amazon.com: Stemedu USB GPS Module GLONASS Beidou UBX-M8030-KT GPS Dongle Built-in Ceramic Antenna for Ar-duino Pixhawk Stratux, Better Than VK-162 VK-172 : Electronics
Passive GPS Antenna uFL - 15mm x 15mm 1 dBi gain : ID 2461 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Fix GPS accuracy - Galaxy S3. Worked for me. Tighten the 10 screws on the back of the phone. Greatly improved the accuracy of GPS/Location on my S3. : r/Ingress
Wifi antenna GPS antenna for iPhone Xs
Passive GPS Antenna uFL - 15mm x 15mm 1 dBi gain : ID 2461 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits