T-Watch Ultra

A bright colour LoRa watch with GNSS and NFC for custom firmware.

LoRaAMOLEDNFCGNSSWearable

Price: $78.32at lilygo.cc
Availability: Sold out
Design: Schematics

Compare with similar devices

Out of stock at LILYGO when checked on 2026-09-29.

Bring along: Firmware of your own or a community build.
Keep in mind: AMOLED costs battery; sold out at the time of review.

Source checked · Sep 17, 2026

Image credit
Maker product photo of the T-Watch Ultra · LILYGO

(02) Blueprint

What’s published

Schematics published

LILYGO's shared LilyGoLib repo has a PDF schematic for the T-Watch Ultra; no 3D case files or PCB source found for this model specifically.

Design files 1

SchematicT-Watch Ultra V1.0 schematic (PDF, 25-07-24)PDFgithub.com

Source 1

Xinyuan-LilyGO/LilyGoLibsdkMIT139

git clone https://github.com/Xinyuan-LilyGO/LilyGoLib.git

Key parts 4

ESP32-S3 All ESP32-S3 devicesMCU + Wi-Fi/BTDatasheet
SX1262 All SX1262 devicesLoRa radioDatasheet
CO5300All CO5300 devicesAMOLED display driver
CST9217capacitive touch controller

Research notes

Only a PDF schematic is published (no case STL/STEP found under case/ for 'ultra'). The generic 'case/t-watch/' strap-hook STLs likely predate this model and may not fit it.

Every link checked 2026-09-27.

Hand this device to your agent. Everything on this page, as clean Markdown and JSON: specs, shops, prices, design files, parts.

Markdown JSON

Made the T-Watch Ultra? Put the badge on your README; it links here, with every shop that sells it.

Specifications

Core hardware

Processor: ESP32-S3 · 16 MB flash · 8 MB PSRAM
Display: 2.06″ CO5300 AMOLED · 410 × 502 · capacitive touch (CST9217)
Radios: SX1262 LoRa · Wi-Fi 802.11 b/g/n · Bluetooth LE 5.0 · GNSS · NFC
Power: 1100 mAh (4.07 Wh) · AXP2101 PMU

Details from the product page

Size: 49 × 63.5 × 22 mm
On board: PMU, microphone, MAX98357A amplifier, RTC, vibration motor, SD card, self-learning AI sensor
Haptics: DRV2605 driver
Development: Arduino, ESP-IDF, VS Code, MicroPython

Buying

Price: US$78.32 on lilygo.cc
Availability: Out of stock on the day of review

What still needs checking

Dimensions, weight and battery runtime are not stated unless listed above.
Firmware support for community tools varies by board; check the project before buying.
Regional band variants and antenna versions change what is in the box.

Downloads & docs

Maker product pagelilygo.cc LILYGO GitHub organisationgithub.com LILYGO FAQ and supportlilygo.cc

Source & revision notes

Maker listing checked Sep 17, 2026. Detailed documentation reviewed Sep 17, 2026. Not hands-on tested.

Price is a dated listing; confirm with the maker.

Specifications were read from LILYGO’s product page on 2026-09-17; price US$78.32 and availability are as shown that day.

LILYGO sells several boards in plain and Meshtastic-preloaded versions and in regional band variants; this entry covers the model, not one variant.

Capability corrected 2026-09-19: this entry carried a 5 GHz Wi-Fi flag that its own recorded specifications do not support. Removed rather than guessed; if the maker documents 5 GHz, add it back with the source.

Written from the maker’s Shopify product data retrieved 2026-09-17; no hands-on testing.

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