Handheld amateur radio Anytone DMR Analog digital bluetooth
Amazon.com: BTECH DMR-6X2 PRO Digital DMR and Analog 7-Watt Dual Band Two-Way Radio (136-174MHz VHF & 400-480MHz UHF). Supports Bluetooth, APRS, GPS, Roaming, AES256 Encryption, Recording, and More
Amazon.com: Walkie Talkie Phones Zello PTT Button APP WiFi Mobile Radio 3G/4G Network 100 Miles Long Range Smartphone GPS Android KSUN ZL10 : Electronics
TYT MD-2017 Dual Band DMR Digital Two Way Radio with GPS
YANTON TM-7700D Dual Band 4G LTE 25W SIM Card POC Network Mobile Radio Phone - Walkie-Talkie
AG45 Low-Profile Series Mobility 5-Lead MIMO Cellular 4G 5G LTE CBRS / GPS GNSS / MIMO Dual Band WiFi Antenna w/Magnetic Mount - Black or White Housing
Galileo Hits the Spot: Testing GNSS Dual Frequency with Smartphones - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design
Zello Radio Poc Walkie Talkie Mobile Phone 4G Network Handheld Transce – SOCOTRAN Professional TWO WAY RADIO
Zastone ZT-889G Dual Band GPS Navigation Two Way Radio 10W Output Power Big LCD Relay Station Multitasking Mode Ham Radio - Two Way Radio
Xiaomi Watch S1 Active, 1.43" AMOLED Display, 117 Fitness Modes, 19 Professional Modes, 200+ Watch Faces, Exquisite Metal Bezel, Dual-Band GPS, 12 Days of Battery Life, Bluetooth Phone Call, Black - Walmart.com
Anytone AT-D878UV Plus Digital DMR Dual-band Handheld Commercial Radio with GPS and Bluetooth | Powerwerx
Advantages of dual-frequency GNSS in smartphones
Dual-frequency GNSS on Android devices | by Sean Barbeau | Medium