RadioMaster AX12 ELRS+Android Radio Controller 2.4GHz

The RadioMaster AX12 is a 2.4GHz ExpressLRS radio controller built around RadioMasterOS, an Android 9-based control platform, giving pilots a touchscreen transmitter that can also run compatible ground-station and configurator apps.

Key features

• 5.5-inch IPS touchscreen at 1280x720 with 1000-nit brightness, bright enough to read outdoors in direct sun.
• Octa-core processor with 4GB RAM and 64GB of storage for smooth app and telemetry performance.
• X5 Hall-effect gimbals with removable, storable sticks for precise, drift-free control.
• Built-in ExpressLRS on a single LR1121 module with 16-channel control and Wi-Fi OTA firmware updates.
• HDMI input and output let the AX12 display a connected digital VTX feed, or mirror its own screen to an external monitor.
• Dual 21700 batteries give roughly 10,000mAh of built-in capacity, charged over USB-C.

Specifications

• Frequency: 2.4GHz ExpressLRS; the LR1121 module can also run Sub-GHz 900MHz
• Channels: up to 16
• Display: 5.5in IPS touchscreen, 1280x720, 1000 nits
• Gimbals: X5 Hall-effect
• Processor: octa-core, 4GB RAM, 64GB storage
• Operating system: RadioMasterOS (Android 9), app install and APK sideloading supported
• Ground-station link: MAVLink passthrough over Wi-Fi for compatible apps
• Controls: 4 x 3-position switches, 2 x 2-position latching shoulder buttons, 2 x analogue scroll wheels, programmable 6-position button
• External module bay: Nano size
• Connectivity: Wi-Fi, Bluetooth, USB-C (charging and data), HDMI in and out, 3.5 mm headphone jack, built-in speaker
• Battery: dual 21700 cells, approx. 10,000mAh
• Weight: 640 g
• Dimensions: 171 x 168 x 73 mm

Choose the AX12 if you want one Android-based transmitter that runs ExpressLRS natively while also handling ground-station apps and telemetry review without a laptop.