The LILYGO T-Deck MAX is a pocketable communications gadget built around an Espressif ESP32-S3, paired with a 3.1 inch E Ink panel, a hardware QWERTY keyboard, and a stack of radios covering WiFi, Bluetooth, 4G LTE, and LoRa. It slots in alongside the existing T-Deck Pro that arrived more than a year ago, but the Max trims away the optional cellular tier and bakes 4G LTE in as standard.
The additions go beyond the modem. According to the T-Deck MAX GitHub repository, the new model picks up an XL9555 IO expansion chip for extra GPIO, a dedicated LoRa antenna selection switch, an audio output channel switch, and a DRV2605 haptic driver for the onboard vibration motor. Those four changes account for the $15 premium over the cellular version of the Pro.
The rest of the spec sheet carries over from the earlier device. The 320 x 240 pixel greyscale E Ink display stays, as does the Semtech SX1262 LoRa transceiver, the 1500 mAh battery, and the microSD slot. Even with the smartphone silhouette, LILYGO positions the hardware squarely at developers and hobbyists building mesh networking, off-grid messaging, or other custom firmware projects on top of the open ESP-IDF and Arduino toolchains.
The T-Deck MAX is available now at $110 (€101), with schematics, pinouts, and example code published to the project's GitHub.
